The ddHiFi TC09BC is a well-made 50/100 cm long USB-C to USB-B Hifi Audio USB cable for connecting your computer to a DAC. Haptic and functionality are premium…and whether it sounds better than ??? (as claimed), well you have to read the whole article...

Introduction

I recently published an article on ddHiFi’s Mfi09S cable. It features a Lightning plug on one end, and a USB-C plug on the other, connecting an iOS device with a DAC. In my writeup I went way beyond my target – characterizing that cable – by reflecting on the general physics evolving around the question whether digital cables can make a sonic difference. After all, ddHiFi claim theirs do.

The answer is not that easy – and not as clear cut as you think. A cable is just one piece in the puzzle – and the best cable you can get is…no cable at all. But whilst there are incredible claims by some cable manufacturers, there are also wild couterclaims of “snake oil”. In reality, one cannot generalize, and the truth is somewhere in between.

I have no issues claiming that analog cables make a difference, that this is not expressed by any measurements (except perhaps impedance), and that there is no link between measurements and audible result by means of a physics equation. Such a link does not exist, although some opinionated claim it does because the measurements are “objective”. And at night it is darker than outside?

The discussion is getting even more polarized when it comes to digital cables. Proponents of the “snake oil” dismissal argue that digital cables only transport zeros and ones, hence there is no difference in quality (because it can’t happen), which also is a circular argument. That’s because none of these can tell you what the zeros and ones actually mean…which shifts the snake oil claims into the territory of the crazy company claims, that is urban myths.

If you belong to one side of the discussion, just enjoy that you save money. And if you belong to the other, enjoy the fact that you have something beautiful in your hands. But please, all of you, don’t lecture the rest of us.

Spoiler alert: bit perfect does not mean perfect data transmission, there can be contaminants in these bits. You better read my Mfi09S article. One thing for sure: a cable cannot improve sound as it cannot clean up a data stream. A cable can can only minimize deterioration of the signal. Whether that’s enough to justify its purchased is in the eye of the beholder.

The TC09BC belongs to the same series as the Mfi09S, both are technically identical, just the plugs are different. and the latter comes in shorter versions. This one is used to connect a computer with a DAC for transferring music (it can also be used as a printer cable, but only if you are a star lawyer, heart surgeon, or oligarch).

The cable comes from ddHiFi, a company y that has been on our Wall of Excellence for their combination of ingenuity and quality.

Specifications ddHiFi TC09BC

Physical Things/Technology

The materials used are in the specs above. Power line and data line are made with different wires that are well shielded against each other. The USB-C connector is rather large, therefore easy to grip, and bother connectors are made of metal and very sturdy. Fit is very snug. You find technical details on ddHiFi’s USB-data cables product page. Overall, this cable is haptically and visually very attractive.

Price wise, the TC09BC is placed between AudioQuest’s Forest and Cinnamon models.

Company Claims

ddHifi claims that the TC09BC offers a “noticeable sound quality improvement“. They fail to specify over what the improvement would be, but it appears obvious that it must be any other such cable. I therefore compare the ddHiFi TC09BC with a well-regarded USB cable.

Physical Theory

I have discussed the theoretic benefits in great detail in my ddHiFi Mfi09S article, which you find repeated behind this spoiler. TL;DR: not all digital cables a equal although they may “sound” the same in some cases…well cables don’t have a sound per se…

Listening Test

Please have a good look at the equipment. I used three different DAPs as sources, the Hidizs and TempoTec connected to the DACs by alternating USB cables (1m ddHiFi TC09BC and 3 m Belkin Gold). The Questyle connected via optical was my reference. I played the same music on all three sources.

The Belkin Gold is a discontinued USB cable that used to be Stereophile’s reference before the fancy USB cables were introduced. Audio pioneer Gordon Rankin confirmed that it is a decent cable. Today, it trades 2nd hand for horrendous prices.

The Questyle/optical combo was my test standard (as it sounded best). I used it to A/B with the other two DAPS. With the Belkin, these Hidizs and TempoTec sounded less dynamic and more subdued compared to the Questyle — independent of the DAC used.

The ddHifi TC09B really made quite a difference — and to the better. Using it, the music sounded crisper with better transparency, which resulted in better resolution and accentuation, but it still could not beat the Questyle/optical combo. In comparison, the Belkin contributed to a less clear, less nuanced sound.

This was evident when flipping (A/B-ing) between USB and optical inputs (my testing standard), which saved me comparing the USB cables against each other from memory (which is inaccurate). The quality difference between optical and ddHiF was simply smaller than with the Belkin. This indirect testing worked well.

A cable (digital or analog) cannot improve sound, it can only minimize signal deterioration.

One has to interpret this with caution, as the sound differences may also rely on other factors such as cable length (maybe the Belkin was too long). Testing the lightning version of the ddHiFi cable, the MFi9S, a while ago, I found zero difference between USB cables. This may relate to the garble/noise, that comes out of the iPhone to begin with, since it has all sorts of clocked non-audio components (cellular, Wifi etc.) — whereas the DAPS are dedicated music players. After all, a cable cannot fix a contaminated signal, it can only minimize signal deterioration.

Concluding Remarks

If you think, USB cables make no difference, then either test them, or just get them from the dollar store — and save your money.

My analysis showed that the ddHiFi TC09BC is a good USB cable that does justice to a >$2000 desktop stack (plus source). With my setup, it does sound better than the popular Belkin Gold cable I tested it against — and I therefore still use it in this application. How it fares with other setups and against really pricey cables, I don’t know. But I would not lose much sleep over it either.

Until next time…keep on listening!

Contact us!

Disclaimer

THE MFi09S cable weather supplied by the ddHiFi for my review upon my request – and I thank them for that. I also thank Alberto for his input to this article.

Get them it from the DD Official Store

Our generic standard disclaimer.

About my measurements.

You find an INDEX of our most relevant technical articles HERE.

Gallery

The post ddHiFi TC09BC USB-C To USB-B Digital Cable Review – Bit Perfect appeared first on Music For The Masses.

The EarMen CH-Amp was supplied by the company and I thank them for that – and for their patience (I tested critically for over 2 months). You can purchase it for $1480 (at the time of writing) from the EarMen shop.

Introduction

EarMen are designers and manufacturers of premium audio products from Europe. They are registered in Chicago however develop and produce in Serbia. They are a young company, but with lots of experience as they are an offshoot of premium manufacturer Auris Audio.

EarMen are confident. They do not offer umpteen models of the same at similar prices. No, one model fits all. And they don’t hand the responsibility of a good sound to the user through countless tweaking options. Their devices sound as good as they should out of the box.

EarMen products have long shelf lives: they are well designed so that the buyer does not have to fear their purchase will be superseded by an “upgrade” anytime soon.

EarMen like puns in their product names: Donald DAC, ST-Amp, and TR-Amp. And now the CH-Amp.

EarMen impressed us first with their dongles, the $129 Eagle and the $199 Sparrow. The former is still the lowest-priced dongle with premium sound on the market in my opinion. And the Sparrow is Biodegraded’s daily driver. It is not only the sound that is impressive but also the design and premium build.

Next, EarMen delighted us with their portable headphone amps, the affordable TR-Amp and the pricier Angel. And then came the Tradutto, their premium DAC designed to go with the CH-Amp. And, boy, does this synergy work.

Specifications CH-Amp

Physical Things

In the box are the actual Ch-Amp, the PSU-3 linear power supply, one 5-pin cable to connect both, and three more standard power cables to connect three more 12 V devices, for example the EarMen Tradutto (which has the same dimensions as the CH-Amp for perfect stacking), a combo remote for CH-Amp and Tradutto, and the manual. These are more accessories than listed in the manual (which you can download here).

A power cord is not included as EarMen are of the opinion that audio enthusiasts have their own preference, worldwide plug standards vary – and everybody has a spare in their drawer anyway. While such a cord is easy to get, a 4.4 mm balanced Pentaconn cable is still a rare thing – and EarMen are advised to offer one in their online shop.

PSU-3, CH-Amp (and even the remote) have appealing, minimalistic industrial designs with clear, straight lines. And they continue EarMen’s tradition of EXCEPTIONAL build quality.

The units are very heavy (3.5 kg combined) and sturdy. The CH-Amp’s printed circuit board is sitting in a one-piece aluminum enclosure with galvanized steel bottom (the same accounts for the PSU-3). Button and dial mechanisms are precise and rugged. Of all devices I have tested, only Burson products have a comparable build quality.

Like the Tradutto, the CH-Amp features an OLED display that indicates the settings.

The CH-Amp is shape wise and technically matched with the Tradutto DAC and essentially relies on this DAC to form the EarMen stack. The CH-Amp’s remote operates both devices.

Features

The CH-Amp is a fully balanced amplifier that comes with a sophisticated linear power supply that handles an additional three devices. The CH-Amp features 2 circuits, a single-ended 6.35 mm one and a more powerful 4.4 mm balanced one. It deploys German quality WIMA capacitors, audio electrolytes in combination with MELF low noise resistors and SoundPlus OPA1642 operational amplifiers.

For balanced operation, the CH-Amp needs to be connected to a balanced DAC such as the EarMen Tradutto. EarMen are forward looking in their choice of 4.4 mm connectivity between DAC and amp for balanced sound…you also need a balanced cable for your headphone or earphone.

The CH-Amp features a safety mechanism to protect the attached equipment and our ears – as described below.

Operation

The CH-Amp features all its controlling features (buttons, knobs, display) in the front, and all its connectivity in the back.

Front Panel

The CH-Amp’s front panel is cleanly laid out and complements the overall shape. It features a 6.35 mm socket for the single-ended circuit, and a 4.4 mm socket for the balanced circuit.

The small OLED indicates the selected input (BAL, L1, L2) and the gain (high, low). If no headphone is connected, it indicates its pre-amp setting “PRE”. It also contains a nifty VU meter. The display is always on and cannot be dimmed, but it is subtle.

The tiny buttons to the right of the display let you select gain and line in. The on-off/volume knob can also be used as a mute button.

Back Panel

The CH-Amp’s back panel contains a 5-pin power input from the PSU-3 power supply, a 4.4 mm balanced socket, and 2 RCA inputs. This means you can connect 3 source devices simultaneously.

For use a pre-amp, the CH-Amp features a 4.4 mm balanced line out and RCA pre-outs. The 4.4 mm circuit is required to keep the stack’s dimensions down (XLR requires a much bigger chassis). The power supply’s back pane is discussed in detail below.

Switching the power supply on welcomes you with a loud “zong”…which is normal. You still have to switch the CH-Amp on individually (and the Tradutto) by pushing its volume knob.

By default, the CH-Amp is on volume level 0/low gain. After selecting the input and gain, you are ready to listen.

In the case you pull the headphone out of the socket, the volume automatically resets to 0. The knob physically moves back into this position under a clicking noise. It is a safety mechanism for protecting your equipment and your ears.

While this can be a cool effect, the gain also resets to low. I would prefer if the gain stayed on the previously chosen setting as it is not a safety requirement (zero volume is zero volume). It would be more convenient if gain selection was included in the remote’s functionality – which it is not.

The Remote

It is actually double remote for controlling the CH-Amp and the Tradutto DAC – and it also switches both devices on and off (but not the PSU-3). The remote is made entirely of metal with quality button mechanisms – and it contains a battery. It charges through any 5V power supply/computer outlet through its USB-C socket. Charger and cable are not included…less clutter.

The haptic is great, certainly much better than my drawer full of flimsy plastic remotes for operating my TV, some DACS, and even my premium Marantz SA8005 SACD player.

What one needs to get used to is the ergonomics (it is just a rectangular box with rounded corners) and the operational challenges. If you stack the Tradutto DAC on top of the CH-Amp/PSU-3, you may find it counterintuitive to have the CH-Amp’s buttons above the Tradutto’s buttons…and may as well sandwich the Tradutto between CH-Amp and PSU-3.

But, obviously, the CH-Amp has priority on the remote, as you may not own a Tradutto at all.

The other challenge is that the selection buttons of the CH-Amp (line ins: BAL, L1, L2) and the selection buttons of the Tradutto (inputs: USB, TOS, COAX, BT) are on opposing sides. All this in the context that the buttons are very close together. As mentioned, a gain control button is not included.

Again, this organization benefits the remote’s size, which is much smaller than any other remote for desktop devices I have – and which is in line with the small-size concept of the EarMen stack.

You may use the remote a lot if your arms are shorter than your headphone cable.

The PSU-3 Power Supply

It is evident that the device advertised as CH-Amp comes in two parts, the bigger and heavier of which is not an amplifier at all: the PSU-3 power supply. It features four power outlets (cables included) and therefore can supply three additional 12V devices other than the CH-Amp (such as the Tradutto DAC, EarMen’s Staccato Streamer, and another device of your choice).

The input voltage can be switched between 115 and 230 V. While it may look bulky, it actually saves a lot of space as discussed in the next chapter.

Power supplies are a very important and frequently underestimated part of our stereo systems. I have tested a few, and in my experience, they make a huge sonic difference – and I mean huge: not by adding sound quality but by minimizing its decay.

Examples are the Tradutto’s stock supply, the ifi Audio iPowerX and the Burson Super Charger, all of which are switching mode power supplies (like our phone/notebook chargers). They are smaller than the PSU-3 unit, which is a linear power supply (LPS).

An LPS is relatively bulky (up to microwave size) and heavy because it contains a big transformer, but it has a great price to performance ratio delivering a cleaner DC through a more stable voltage.

The smaller SMPS are generally noisier and deteriorate the signal more, unless you move into the super premium segment. But even a decent LPS can setup you back several hundred dollars. Easily!

EarMen’s engineers have obviously put a lot of thought into clean power.

If you also own the Tradutto, you can use its stock SMPS for other devices. The PSU-3 is a better power supply that upgrades the Tradutto’s sound, too.

Amplification

The CH-Amp has a maximum power of 3.8 W for its balanced output on high gain @ 32 Ω. See the two tables below for details at other representative headphone impedances. EarMen does not recommend load impedance of 8 Ω (you can work around this by using the IE Match).

Balanced Output (4.4 mm)

Single-ended Output (6.35 mm)

I tested the CH-Amp with the EarMen Tradutto DAC, sourced my a MacBook Air. I mainly used two headphones, the power-hungry 300 Ω Sennheiser HD 600 and the easy-to-drive 16 Ω Final Sonorous III, both with 4.4 mm balanced cables. The CH-Amp’s volume scale ranges from 0 to 30.

With the Senns, I turned the volume to 15 (on high gain) for a “healthy” sound, and to about 20 for loud music. 25 was hurting my eardrums. The Sonorous played already really loud at 9 on the dial (on low gain). 6 was enough for normal listening.

Driving the 32 Ω Beyerdynamic Custom Pro and the 70 Ω Sennheiser HD25 on the single-ended circuit on low gain also was a piece of cake for the CH-Amp.

The CH-Amp will drive any headphone sufficiently (except, perhaps some rare, particularly “hungry” planars).

Sound

I tested with the EarMen Tradutto DAC sourced by a MacBook Air.

The CH-Amp’s sound is essentially uncoloured, maybe with a very slight lift at the low end (depending on source and interconnects). Transparency is excellent, staging and extension vary with transducer: the Sennheiser HD 600 play way more open than the Final Sonorous III.

There is obviously a sonic difference between the balanced and single-ended circuits (apart from power). The balanced circuit adds more depth to the sonic image – and produces an overall more “balanced” sound. It is the 4.4 mm circuit that makes the CH-Amp shine.

I have been listening over 2 months with headphones of impedances as low as 16 Ω and do not register any hiss. One recording I am getting back to again and again is Miles Davis’ classic 1959 Kind of Blue album (in the 2007 digital hybrid SACD SICP 10083 version from Sony Japan), in combination with the Sennheiser HD 600 (with balanced cable). In my experience, it feels like being in the studio: excellent transparency, crispness, resolution, and control. The sound is vivid yet natural and balanced. An addictive experience.

In comparison, the Tradutto with the similarly powerful Burson Funk (with the V6 Classic opamps and the Super Charger power supply) creates a warmer and flatter sound (as it lacks a balanced circuit).

The CH-Amp, in combination with the EarMen Tradutto produces the best sound I have experienced with my headphones. It is a truly complete (balanced) package!

Does Size Matter?

On my desk, space is sparse – and size matters a lot. The Marie Kondo in me wants a setup with the best possible sound and yet the smallest possible footprint — and as little (cable) clutter as possible.

The EarMen stack (Tradutto, CH-Amp, and Staccato streamer) occupies the smallest possible area of any stack in its category. It is building up rather than out, just like skyscrapers in mega cities – and it occupies barely more area than a CD.

Its footprint is further minimized by the lack of cable clutter: the single, short 4.4 mm Pentaconn cables takes way less space than the two bulky XLR ones it replaces. I ordered my megumi copper cable from Hart Audio, who also consider the less cumbersome 4.4 mm cables as convenient.

The third space saving takes place underneath our desks. Instead of needing four wall outlets or a power bar with three additional external power supplies dangling around our feet (which may introduce potential interference issues), the PSU-3 needs only a single power cord/power outlet for supplying the CH-Amp and another three 12 V devices.

If you, let’s say, only use the PSU-3 for the CH-Amp and Tradutto, you can connect any other two 12 V device to it. For example, it works for the TempoTec Serenade X player – and it improves its sound substantially compared to its stock supply (even the Tradutto’s stock power supply makes the Serenade X sound much better).

In summary, “less is more” and the EarMen stack’s size is very handy. With one less problem, I can leave the desk clutter intermittently to books and papers.

Concluding Remarks

In summary, the CH-Amp is characterized by a clean industrial design, clean power, clean sound, and clean cable organization with the smallest possible footprint.

Both CH-Amp and Tradutto make for a fantastic stack, a complete package that made it well worth re-equipping my favourite headphones with 4.4 mm balanced cables (check the “Gallery” below for details.

The EarMen stack is the best best desktop combo I have tested. Period. And it is more than enough for my sonic needs. It is not often that such a great device hits my test bench.

In the end, “We are the CH-Ampions” applies…please excuse the pun.

For best results, pair the CH-Amp with the Tradutto.

Until next time…keep on listening!

Contact us!

Disclaimer

Our generic standard disclaimer.

Gallery

The post EarMen CH-Amp Review – Complete Control appeared first on Music For The Masses.

Der EarMen CH-Amp wurde von der Firma bereit gestellt und ich danke ihnen dafür – und für ihre Geduld (ich habe über 2 Monate lang kritisch getestet). Sie können ihn für 1480 $ (zum Zeitpunkt des Schreibens) im EarMen Shop erwerben.

Dieser Artikel wurde vom Author aus dem kanadischen Englisch übersetzt. Das Original findet sich hier.

Einführung

EarMen sind Designer und Hersteller von Premium-Audioprodukten aus Europa. Sie sind in Chicago registriert, entwickeln und produzieren jedoch in Serbien. Sie sind ein junges Unternehmen, aber mit viel Erfahrung, da sie ein Ableger des Premium-Herstellers Auris Audio sind.

EarMen sind selbstbewusst. Sie bieten nicht zig Modelle desselben zu ähnlichen Preisen an. Nein, ein Modell pro Kategorie reicht. Und sie geben dem Benutzer nicht die Verantwortung für einen guten Klang durch unzählige Optimierungsoptionen. Ihre Geräte klingen so gut, wie sie es aus der Packung heraus sollten.

EarMen-Produkte haben eine lange Haltbarkeit: Sie sind gut durchdacht, sodass der Käufer nicht befürchten muss, dass sein Kauf in absehbarer Zeit durch ein “Upgrade” ersetzt wird.

EarMen mögen Wortspiele in ihren Produktnamen: Donald DAC, ST-Amp und TR-Amp.

EarMen beeindruckte uns zuerst mit ihren Dongles, dem 129 $ Eagle und dem 199 $ Sparrow. Ersteres ist meiner Meinung nach immer noch der preisgünstigste Dongle mit Premium-Sound auf dem Markt. Und der Sparrow ist der tägliche “Driver” von Co-Blogger Biodegraded. Es ist nicht nur der Klang, der beeindruckend ist, sondern auch das Design und der Premium-Build.

Als nächstes begeisterte uns EarMen mit ihren tragbaren Kopfhörerverstärkern, dem erschwinglichen TR-Amp und dem teureren Angel. Und dann kam der Tradutto, ihr Premium-DAC, der für den CH- Amp entwickelt wurde. Und, Boy, funktioniert diese Synergie gut.

Spezificationen des CH-Amp

Physische Dinge

In der Box befinden sich der eigentliche CH-Amp, das lineare Netzteil PSU-3, ein 5-poliges Kabel zum Anschließen beider, sowie drei weitere Kabel zum Anschluss von drei weiteren 12-V- Geräten, zum Beispiel das EarMen Tradutto (das die gleichen Abmessungen wie der CH-Amp für perfektes “Stapeln” hat), und eine Kombi-Fernbedienung für CH-Aamp und Tradutto. Dies ist mehr Zubehör als in der Bedienungsanleitung aufgeführt (welche Sie hier herunterladen können).

Ein Netzkabel ist nicht im Lieferumfang enthalten, da EarMen der Meinung sind, dass Audio-Enthusiasten ihre eigene Präferenz haben, die weltweiten Steckerstandards variieren – und jeder hat sowieso ein Ersatzkabel in seiner Schublade.

Während ein solches Kabel leicht zu bekommen ist, ist ein 4,4-mm symmetrisches Pentaconn-Kabel immer noch eine seltene Sache – und EarMen wird empfohlen, eines in ihrem Online-Shop anzubieten.

PSU-3, CH-Amp (und sogar die Fernbedienung) haben ansprechende, minimalistische Industriedesigns mit klaren, geraden Linien. Und sie setzen die Tradition von EarMen von AUSSERGEWÖHNLICHER Verarbeitungsqualität fort.

Die beiden Einheiten sind relativ schwer (3.5 kg zusammen) und robust. Die Leiterplatte des CH-Amp befindet sich in einem einteiligen Aluminiumgehäuse mit verzinktem Stahlboden (die gleichen Rechnungen für das Netzteil-3). Knopf- und Wählmechanismen sind präzise und robust. Von allen Geräten, die ich getestet habe, haben nur Burson Produkte eine vergleichbare Verarbeitungsqualität.

Wie der Tradutto verfügt auch der CH-Amp über ein OLED-Display, das die Einstellungen anzeigt.

Der CH-Amp ist von der Form und technisch auf den Tradutto DAC abgestimmt und verlässt sich im wesentlichen auf diesen DAC, um den EarMen-Stack zu bilden. Die Fernbedienung des CH-Amp bedient beide Geräte.

EIGENSCHAFTEN

Der CH-Amp ist ein “balanced/symmetrischer” Verstärker, der mit einer ausgeklügelten linearen Stromversorgung ausgestattet ist, die drei zusätzliche Geräte betreiben kann. Der CH-Amp verfügt über 2 Schaltkreise (asymmetrisch/single-ended 6.35 mm und eine leistungsstärkere 4.4 mm balanced/asymmetrisch). Es sind WIMA-Kondensatoren in deutscher Qualität, Audioelektrolyte in Kombination mit MELF-Rauscharmen Widerständen und SoundPlus OPA1642 Opamps verbaut.

Für den “balanced” Betrieb muss der CH-Amp an einen ausgewogenen Digitalwandler wie den EarMen Tradutto angeschlossen werden. EarMen freuen sich auf ihre Wahl der 4.4-mm Konnektivität zwischen DAC und Verstärker für ausgewogenen Klang… Sie benötigen auch ein “balanced” Kabel für Ihren Kopfhörer.

Der CH-Amp verfügt über einen Sicherheitsmechanismus, um die angeschlossenen Geräte und unsere Ohren zu schützen – wie unten beschrieben.

Bedienung

Der CH-Amp verfügt über alle seine Steuerfunktionen (Tasten, Knöpfe, Display) auf der Vorderseite und alle seine Konnektivität auf der Rückseite.

Vorderseite

Die Frontplatte des CH-Amp ist sauber angeordnet und ergänzt die Gesamtform. Es verfügt über eine 6.35-mm-Buchse für den Single-End-Schaltkreis und einen 4.4-mm Anschluss für den Balanced-Circuit.

Das kleine OLED Display zeigt den ausgewählten Eingang (BAL, L1, L2) und die Verstärkung (hoch, niedrig) an. Wenn kein Kopfhörer angeschlossen ist, zeigt er seine Vorverstärkereinstellung “PRE” an. Es enthält auch ein raffiniertes VU-Meter. Das Display ist immer eingeschaltet und kann nicht gedimmt werden, aber es ist subtil.

Die winzigen Tasten rechts vom Display lassen Sie Gain und Line-In auswählen. Der Ein-Aus- /Lautstärkeregler kann auch als Stummschalttaste verwendet werden.

Rückseite

Die Rückwand des CH-Amp enthält einen 5-poligen Stromeingang aus dem Netzteil PSU-3, eine 4.4 mm Balanced-Buchse und 2 RCA-Eingänge. Das bedeutet, dass Sie 3 weitere Quellgeräte gleichzeitig anschliessen können.

Für die Verwendung eines Vorverstärkers verfügt der CH-Amp über einen .,4-mm symmetrische Line-Out und RCA-Pre-Outs. Der 4.4-mm Schaltungkreis ist erforderlich, um die Abmessungen des Stacks niedrig zu halten (XLR erfordert ein viel größeres Chassis). Die Hinterseite des Netzteils wird im Folgenden ausführlich besprochen.

Das Einschalten der Stromversorgung begrüßt Sie mit einem lauten “Zong” … was normal ist. Sie müssen den CH-Amp immer noch einzeln (und den Tradutto) einschalten, indem Sie den Lautstärkeregler drücken..

Standardmäßig befindet sich der CH-Amp auf Lautstärkestufe 0/niedrige Verstärkung. Nachdem Sie die Eingabe und den Gain ausgewählt haben, kann man Musik hören.

Wenn Sie den Kopfhörer aus der Buchse ziehen, wird die Lautstärke automatisch auf 0 zurückgesetzt. Der Knopf bewegt sich unter einem Klickgeräusch physisch zurück in diese Position. Es ist ein Sicherheitsmechanismus zum Schutz Ihrer Ausrüstung und Ihrer Ohren.

Während dies ein cooler Effekt sein kann, wird der Gain auch auf niedrig zurückgesetzt. Ich würde es vorziehen, wenn der Gain auf der zuvor gewählten Einstellung bleibt, da es sich nicht um eine Sicherheitsanforderung handelt (Nullvolumen ist Nullvolumen). Es wäre bequemer, wenn die Gainwahl in die Funktionalität der Fernbedienung einbezogen würde – was nicht der Fall ist.

Die Fernbedienung

Es ist eigentlich eine doppelte Fernbedienung zur Steuerung des CH-Amp und des Tradutto DAC – und es schaltet auch beide Geräte ein und aus (aber nicht das Netzteil). Die Fernbedienung besteht vollständig aus Metall mit hochwertigen Tastenmechanismen – und sie enthält eine verbaute Batterie. Es lädt über jedes 5V-Netzteil/Computersteckdose über seine USB-C-Buchse auf. Ladegerät und Kabel sind nicht im Lieferumfang enthalten… weniger Unordnung.

Die Haptik ist großartig, sicherlich viel besser als meine Schublade voller billig anmutenden Kunststofffernbedienungen für den Betrieb meines Fernsehers, einiger DACS und sogar meines Premium-Marantz SA8005 SACD-Players.

Woran man sich gewöhnen muss, ist die Ergonomie (es ist nur eine rechteckige Box mit abgerundeten Ecken) und die betrieblichen Herausforderungen. Wenn Sie den Tradutto DAC auf den CH-Amp/PSU-3 stapeln, können Sie es kontra-intuitiv finden, die Tasten des CH-Amp oberhalb der Tasten des Tradutto zu haben… und können den Tradutto auch zwischen CH-Amp und PSU-3 stellen.

Aber offensichtlich hat der CH-Amp Vorrang in der Fernbedienung, da Sie möglicherweise überhaupt keinen Tradutto besitzen.

Die andere Herausforderung besteht darin, dass sich die Auswahltasten des CH-Amp (Line-Ins: BAL, L1, L2) und die Auswahltasten des Tradutto (Eingänge: USB, TOS, COAX, BT) auf gegenüberliegenden Seiten befinden. All dies in dem Kontext, dass die Tasten sehr nah beieinander liegen. Wie bereits erwähnt, ist eine Gain Control-Taste nicht enthalten.

Auch hier kommt diese Organisation der Größe der Fernbedienung zugute, die viel kleiner ist als jede andere Fernbedienung für Desktop-Geräte, die ich habe – und die dem kleinen Konzept des EarMen- Stacks entspricht.

Sie werden die Fernbedienung viel verwenden, wenn Ihre Arme kürzer sind als Ihr Kopfhörerkabel.

Das PSU-3 Netzteil

Es ist offensichtlich, dass das als CH-Amp beworbene Gerät aus zwei Teilen besteht, von denen der größere und schwerer überhaupt kein Verstärker ist: das Netzteil PSU-3. Es verfügt über vier Anschlüsse (einschließlich beigelegte Kabel) und kann daher drei zusätzliche 12-V-Geräte außer dem CH-Amp (wie den Tradutto DAC, EarMen’s Staccato Streamer und ein anderes Gerät Ihrer Wahl) liefern.

Die Eingangsspannung kann zwischen 115 und 230 V geschaltet werden. Obwohl das Netzteil sperrig aussehen mag, spart es tatsächlich viel Platz, wie im nächsten Kapitel besprochen.

Netzteile sind ein sehr wichtiger und häufig unterschätzter Teil unserer Stereoanlagen. Ich habe einige getestet, und nach meiner Erfahrung machen sie einen großen klanglichen Unterschied – und ich meine enorm: nicht durch Hinzufügen von Klangqualität, sondern durch Minimierung der Erosion derselben .

Beispiele sind das Netzteil des Tradutto, das ifi Audio iPowerX und das Burson Super Charger, die alle Schaltmodus Netzteile sind (wie unsere Telefon-/Notebook-Ladegeräte). Sie sind kleiner als die PSU-3 Einheit, die eine lineare Stromversorgung (LPS) ist.

Ein LPS ist relativ sperrig (bis zur Mikrowellengröße) und schwer, weil es einen großen Transformator enthält, aber es hat ein gutes Preis-Leistungs Verhältnis, das eine sauberere Gleichstromspannung durch eine stabilere Spannung liefert.

Die kleineren SMPS sind im Allgemeinen lauter und verschlechtern das Signal mehr, es sei denn, Sie wechseln in das Super-Premium-Segment. Aber selbst ein anständiger LPS kann Sie mehrere hundert Dollar kosten.

Die Ingenieure von EarMen haben offensichtlich viel über saubere Energie nachgedacht.

Wenn Sie auch den Tradutto besitzen, können Sie seinen Standard SMPS für andere Geräte verwenden. Das PSU-3 ist ein besseres Netzteil, das auch den Klang des Tradutto verbessert.

Verstärkerleistung

Der CH-Amp hat eine maximale Leistung von 3.8 W für seine ausgeglichene Leistung bei hoher Verstärkung @ 32 Ω. In den beiden folgenden Tabellen finden Sie weitere Informationen zu anderen repräsentativen Kopfhörerimpedanzen. EarMen empfiehlt keine Lastimpedanz von 8 Ω (Sie können dies mit dem IE Match umgehen).

Balanced Output (4.4 mm)

Single-ended Output (6.35 mm)

Ich habe den CH-Amp mit dem EarMen Tradutto DAC getestet, mit Musik von meinem MacBook Air. Ich habe hauptsächlich zwei Kopfhörer verwendet, den energiehungrigen 300 Ω Sennheiser HD 600 und den weniger anspruchsvollen 16 Ω Final Sonorous III, beide mit 4,.4 mm symmetrischen Kopfhörerkabeln. Die Lautstärkeskala des CH-Amp reicht von 0 bis 30.

Mit den Sennheisern drehte ich die Lautstärke auf 15 (bei “High Gain”) für einen “gesunden” Klang und auf etwa 20 für laute Musik. 25 war für mein Trommelfell zuviel. Der Sonorous spielte bereits sehr laut bei 9 auf der Skala (bei “Low Gain”). 6 war genug für normales Hören.

Das Fahren des 32 Ω Beyerdynamic Custom Pro und des 70 Ω Sennheiser HD25 auf der Single-End- Schaltung mit geringer Verstärkung war auch ein Kinderspiel für den CH-Amp.

Der CH-Amp treibt jeden Kopfhörer ausreichend an (mit Ausnahme einiger seltener, besonders “hungriger” Planare).

Klang

Ich habe mit dem EarMen Tradutto DAC getestet, der von einem MacBook Air mit Musik versorgt wurde.

Der Klang des CH-Amp ist im wesentlichen unverfärbt, vielleicht mit einem sehr leichten Boost am unteren Ende (abhängig von Quelle und Verbindungen). Die Transparenz ist ausgezeichnet, die Inszenierung und die Erweiterung variieren je nach Wandler: Der Sennheiser HD 600 spielt viel offener als der Final Sonorous III.

Es gibt offensichtlich einen klanglichen Unterschied zwischen den symmetrischen und den asymmetrischen Ausgängen (abgesehen von der Leistung). Der symmetrische Schaltkreis verleiht dem Klangbild mehr Tiefe – und erzeugt einen insgesamt “ausgeglicheneren” Klang. Es ist die .,4-mm-Schaltung, die den CH-Amp zum Strahlen bringt.

Ich testete über 2 Monate mit Kopfhörern mit Impedanzen von nur 16 Ω und registrierte kein Zischen. Eine Aufnahme, zu der ich immer wieder zurückkomme, ist Miles Davis’ klassisches 1959 Kind of Blue Album (in der digitalen Hybrid-Version SACD SICP 10083 2007 von Sony Japan), in Kombination mit dem Sennheiser HD 600 (mit symmetrischem Kopfhörerkabel). Meiner Erfahrung nach fühlt es sich an, als wäre man im Studio: ausgezeichnete Transparenz, Schärfe, Auflösung und Kontrolle. Der Klang ist lebendig, aber natürlich und ausgewogen. Eine süchtig machende Erfahrung.

Im Vergleich dazu erzeugt der Tradutto mit dem ähnlich leistungsstarken Burson Funk (mit den V6 Classic Opamps und dem Super Charger-Netzteil) einen wärmeren und flacheren Klang (da ihm ein symmetrische Schaltkreis fehlt).

Der CH-Amp erzeugt in Kombination mit dem EarMen Tradutto den besten Sound, den ich mit meinen Kopfhörern erlebt habe. Es ist ein wirklich komplettes (ausgewogene) Paket!

Spielt die Größe eine Rolle?

Auf meinem Schreibtisch ist der Platz knapp – und Größe daher sehr wichtig. Die Marie Kondo in mir will ein Setup mit dem bestmöglichen Klang und doch dem kleinstmöglichen Platzbedarf – und so wenig (Kabel-) Unordnung wie möglich.

Der EarMen Stack (Tradutto, CH-Amp und Staccato-Streamer) nimmt die kleinstmögliche Fläche eines Stapels in seiner Kategorie ein. Es baut sich eher auf als draußen, genau wie Wolkenkratzer in Metropolen – und er nimmt kaum mehr Fläche ein als eine CD.

Sein Platzbedarf wird durch den Mangel an Kabelsalat weiter minimiert: Die einzelnen, kurzen 4.4- mm-Pentaconn-Kabel nehmen viel weniger Platz ein als die beiden sperrigen XLR-Kabel, die es ersetzt. Ich habe mein Megumi-Kupferkabel bei Hart Audio bestellt, das auch die weniger umständlichen 4.4-mm-Kabel für praktisch hält.

Die dritte Platzersparnis findet unter unseren Schreibtischen statt. Anstatt vier Steckdosen oder eine Netzleiste mit drei zusätzlichen externen Netzteilen zu benötigen, die um unsere Füße baumeln (was zu potenziellen Interferenzproblemen führen kann), benötigt das PSU-3 Netzteil nur ein einziges Netzkabel/eine Steckdose für die Versorgung des CH-Amp und weitere drei 12-V-Geräte.

Wenn Sie beispielsweise nur das PSU-3 für den CH-Amp und Tradutto verwenden, können Sie zwei weitere 12-V-Geräte daran anschließen. Zum Beispiel funktioniert es für den TempoTec Serenade X- Player – und es verbessert dessen Klang im Vergleich zu seinem eigenen Netzteil erheblich (sogar das Standardstromversorgung des Tradutto lässt den Serenade X viel besser klingen).

Zusammenfassend ist “weniger mehr” und die Größe des EarMen Stacks ist sehr praktisch. Mit einem Problem weniger kann ich meine Bürounordnung den Büchern und Papierkram überlassen.

Abschließende Bemerkungen

Zusammenfassend lässt sich sagen, dass sich der CH-Amp durch ein sauberes Industriedesign, saubere Leistung, sauberen Klang und saubere Kabelorganisation mit dem kleinstmöglichen Platzbedarf auszeichnet.

Sowohl CH-Amp als auch Tradutto sorgen für einen fantastischen Stack, ein Komplettpaket, das es sich gelohnt hat, meine Lieblingskopfhörer mit 4.4-mm “symmetrischen” Kabeln neu auszurüsten (siehe die “Galerie” unten für Details.

Der EarMen-Stack ist die beste Desktop-Combo, die ich getestet habe. Basta! Und es ist mehr als genug für meine klanglichen Bedürfnisse. Es kommt nicht oft vor, dass ein so großartiges Gerät auf meinen Schreibtisch kommt.

Am Ende gilt “Wir sind die CH-Ampions”… bitte entschuldigen Sie den Kalauer.

Für beste Ergebnisse kombinieren Sie den CH-Amp mit dem Tradutto.

Bis zum nächsten Mal…keep on listening!

Contact us!

Impressum

Our generic standard disclaimer.

Gallerie

The post EarMen CH-Amp Kopfhörerverstärker – Testbericht aus Kanada appeared first on Music For The Masses.

As there already is a comprehensive article about M15 on our blog, I will entirely skip a general description of the device features as it would be needless repetition. I will also be succint on most sound impressions.

I’m going to focus on some detail which are not covered in the previous piece, and/or on aspects for which I have a different opinion.

M15 costs € 249 + freight on the manufacturer’s website.

At-a-glance Card

Miscellaneous good stuff and caveats

Good High Gain option

Unlike what happens on so many other devices I heard, M15’s High Gain option is not chastising in terms of dynamic range compression. The effect is indeed very modest, which makes HG a totally viable option whenever one feels like adding some more early juice delivery to one or another driver.

Bad Single Ended output

It is so obviously duller and noisier compared to the Balanced option to be totally unworthy of such an otherwise outstanding product. To give a vague idea, it’s roughly on quality level of M15’s cheaper (120€) sibling, the M12 – which quality, at that price level, is trounced by the like of E1DA 9038D.

This means that one cannot elect the M15 as its “only” dongle if he/she has one or more drivers with single ended connections to support. Too bad.

Spectacular sound, if not totally uncolored

M15’s sound is first of all grand (spatially), and immediately after that it’s clear and detailed. Instrument separation and layering are just spectacular – which paired with its space drawing capabilities make for a really uncommonly good imaging and “sense of immersion” into the outcoming sound.

M15 is not uncolored in terms of tonality. There is some added accent on midbass notes – which is if you wish part of the “usual” compromise “musicality vs purity”. The situation comes out obvious when comparing M15 with E1DA 9038SG3: the two offer equal bilaterally extended sound ranges, with the latter’s bass staying faster, “more technical”, therefore also “less expressive” in a sense.

9038SG3 is however a step under M15 in terms of spatial reconstruction, with particular regards to depth. Layering is also a bit less refined – and that’s mainly why M15 comes across overall “more musically pleasing” compared to 9038SG3.

Powerwise 9038SG3 is better vs very low impedances: in the E5000-acidtest 9038SG3 beats M15 in terms of bass control and overall clarity. It’s fair to observe that 9038SG3 remains the best option around, and by far so, when the available budget is like half M15’s asking price.

In its being “exquisitely musical if unpure” M15 can’t but recall Groove in a sense. In Apogee’s dongle case sound colouring is even more marked, and comes with furtherly higher capability in terms of stage drawing – depth and height most of all. The two devices are not effectively comparable though – mainly due to Groove’s internal architecture making it the odd ball it is – read my piece for the full reasons why.

Annoying RFI sensitivity

When paired to a smartphone connected to the 4G cell network M15 easily picks up RFI (Radio Frequency Interference) when within approx 10cm from the phone. The “solution” is using a non-ultrashort USB-C cable for the connection, but a problem still remains when you walk around with your phone + the M15 in a coat’s pocket…

By comparison, E1DA 9038D behaves very similarly, E1DA 9038SG3 is instead virtually immune to such RFI.

Oddly lacking Direct-DSD support on non-mobile OS

While M15’s USB interfacing is fully supported by Android, not the same happens when the device is plugged onto a Windows or Linux host.

For Windows, Questyle does not make an ASIO driver available (yet?). M15 can therefore be used only on “WASAPI Exclusive” mode. Which means there’s not way to have access to direct DSD transfers (Wasapi only supports PCM).

For Linux the situation is even wierder (if not unique). M15 is apparently not fully supported by standard ALSA (Advanced Linux Sound Architecture) and the end result is that Roon Bridge on a Linux server does not offer Direct DSD support onto M15 when locally connected to it. Not the first time it happens to me – 9038D and 9038SG3 suffer of the same issue.

Considerations & conclusions

It’s very simple: Questyle M15 is “the” DAC/AMP dongle to have if one has 250-300€ to spend, and has balanced connectivity options for all its drivers.

It’s got superb sound clarity and body, very good spatial reconstruction capabilities, very good power management and strong power output.

In terms of overall sound experience M15 easily beats all standalone budget and mid-tier DAPs I happened to audition or own, the ones starting to represent an evident upgrade to it being nothing short of Questyle’s own QP1R, or Lotoo’s Paw 6000 and Gold Touch, or Cayin’s N8. Seen from this angle M15 carries a very reasonable price tag.

The sole serious caveat to mention for me about M15 is its Balanced output option being the sole one delivering good quality. Whoever wants or needs a Single-ended source wouldn’t be as satisfied with M15 (and its price).

M15 is rightfully stuck on our WoE, and determines the passage of Earmen Sparrow and L&P W2 to the relevant Past Excellences section therein.

As I mentioned at the very beginning I bought the M15 unit I am talking about in this article on my own budget after the package with the complimentary review unit which had been sent by Questyle got stolen at my door in my absence. So of course this still “counts” as a manufacturer-supplied unit in a sense, for which I am sincerely thankful to Questyle.

An M15 can be purchased from various Questyle distributors in selected countries, or from Questyle’s own web shop.

Our generic standard disclaimer.

The post Questyle M15 Review (2) – Best In Slot appeared first on Music For The Masses.

A device gets attached to this Wall of Excellence when based on our private and of course subjective experience it performs so well within its technical and price category as to even discourage considering homologous alternatives.

If it ain’t here, WE don’t want it!

Please note that our WoE will not be limited to devices we actually published a review of. Nonetheless, all WoE devices have for long time been or still are part of our operative gear.

We start small and plan to expand our wall according to merit.

This Site is being consistently updated…please bookmark it and keep checking back!

LATEST ADDITIONS: Qudelix-5K, Questyle M15, E1DA 9038SG3.

In-Ear Monitors

Past excellences, now discontinued or superseded

Headphones

Digital Audio Players (“DAPs”)

Desktop Amplifiers

Desktop DACs

Desktop Integrated Headphone DAC/AMPs

Portable Headphone Amplifiers

Portable Integrated Headphone DAC/AMPs

Headphone DAC/AMP “Dongles”

Dongles are little DAC/amps without battery that are powered by their source device.

Past excellences, now discontinued or superseded

Accessories

The post Wall Of Excellence DRAFT appeared first on Music For The Masses.

The ddHiFi MFi09S is a 10/50 cm long Lightning to USB-C cable claimed to make an obvious sonic difference. This article also generally addresses the contentious issue of sound improvement by digital cables.

Introduction

ddHiFi have been one of the most innovative companies for portable audio. They produce functional, imaginative, high quality accessories, from bags, through cables to adapters, and even a couple of earphones. Their latest endeavour is the Nyx series of audiophile digital cables, which are all share the same wire material and insulation: a USB-B to USB-A, a USB-C to USB-C, a Ligthning to USB-A and a Lightning to USB-C for connecting iPhones to a DAC.

Therefore, today we are…no, that was already last week. And its only me once again. Therefore, in this article, I examine the ddHifi MFi09S Lightning to USB-C, mainly for its sonic capabilities. There are many crying “snake oil” now (and pull out some questionable measurements in their support), but whining is one thing, and listening is another. As we will see, the situation is not as black and white as it seems.

This article also has another purpose: to summarize our current knowledge of digital data transfer in layman’s terms. Although this is presented rather compact, you may want to re-visite this article for the occasional refresher.

Specifications MFi9S

Physical Things/Technology

You have seen the materials used in the specs above. Power line and data line are made with different wires that are well shielded against each other. The connectors are rather large, therefore easy to grip, and they are very rugged. These plugs fit even the smallest phone case. The cable as such feels substantial but it is a bit stiff, which works better for the shorter 10 cm version. You find technical details on ddHiFi’s USB-data cables product page. Overall, this cable is haptically and visually very attractive.

The MFi09’s lightning connector features a decoding chip which draws a small current from the phone. I did not test this one specifically, but all other non-Apple lightning cables previously in my hands have the same power consumption, as tested here.

Company Claims

ddHifi claims that the MFi09S offers a “noticeable sound quality improvement“. They fail to specify over what the improvement would be (maybe their own MFi06 cable?, but it appears obvious that it must be any other such cable.

Physical Theory

Noise and Timing

So what sonic improvement (over what?) can we expect in a digital cable? After all, it transports zeros and ones, right (which are transmitted as voltage fluctuations)? Actually, it carries data and power in two separate lines.

Principally, there is lots of “digital crap” coming out of a phone: jitter (timing errors) and noise. That’s because a phone is not a dedicated music player. I has no proper audio clock and lots of other functionalities that require different electrical components, which are cramped in a small case and affect the outgoing digital signal negatively, mainly by electromagnetic interference (EMI), radio frequency interference (RFI), and timing errors (jitter). In some cases, interference is caused by the client DAC, as demonstrated on the example of the EarMen Sparrow by Biodegraded. And noise can also be produced inside the cable (through poor insulation).

What’s in a Digital Cable?

Fact is, there is no difference in incoming vs. received data between expensive and budget cables, bits are bits, and the result is “bit perfect” in every case. So, no sonic difference, right? Stop, we have to examine what’s in a bit: jitter, timing, and noise. Jitter and timing can be measured (and corrected for by re-clocking), which leaves us with noise. It is a bit of an unlucky choice of words, I’d call it impurities superimposed on the digital signal which may (or not) degenerate the sound.

A metallic digital cable is principally a conductor that also transports pre-existing noise (it cannot distinguish between the good and bad things in the data stream) but it is also an “antenna” for near-ambient RFI/EMI, and it generates its own stray/spare magnetic and electrical fields (when carrying a constant current).

So what can go wrong during digital data transfer? When signal voltage is transported, the host and the cable may pick up stray signals in addition to the intended one…just like dirt being added to the bathwater. In addition, host, cable, and client can be on different “electrical” ground levels. Third, interferences during transport may generate time delays.

Timing errors need filtering by decrappifiers such as the ifi Nano iUSB 3.0 and re-clocking, typically not done in the phone host but in the DAC client at the other end of the digital cable. EMI can be minimized or avoided by the use of high-quality, well-shielded electronic components in the phone – and by a good digital cable.

In a well-designed cable, data line and power lines are separated and well shielded from each other (and from outside electromagnetic interference from, let’s say, power supplies), and it is twisted to minimize the contact areas between the two. Material also plays a role for data integrity: for example, in networks, fibre optic cables are not susceptible to EMI, copper is. EMI is important not only for the design of cables, but also for the electronics and the circuit board.

In summary, noise contamination happens in the source and/or during transport through the digital cable. The old rule “garbage in, garbage out” is also valid for digital data. If the data stream leaving the phone is compromised, the cable cannot fix it. All it can do is not let it further deteriorate. It cannot reclock or filter, and therefore not correct for the phone’s EMI/RFI and/or jitter.

Therefore, if the source emits a noisy signal, even the best cable makes no difference, but a bad cable further deteriorates the signal. If the host signal is clean, cables may make a difference. A dedicated music player may generate a cleaner data stream than a computer or a phone.

What Others say

The Audiophiliac Steve Guttenberg compared “fancy” optical and coaxial cables with generic, low-cost ones. He recorded substantial sonic differences between the expensive and the generic ones. Steve is a reputable analyst: was he dreaming and putting his good reputation at stake? In contrast, no test of Lighting cables has been conducted yet. Actually, I did test a few in my analysis of the ddHifi MFiS06…and found no obvious difference.

Self-acclaimed “objectivists” claim digital data don’t make a difference. This is based on measurements that do not reflect the quality of the data stream – and no physical connection between them and sound is established. And because the measurement setups are as arbitrary as the interpretation of the results, there is nothing objective about them. Nada. Zilch.

To add insult to injury, such protagonists typically don’t bother testing the gear with their ears they lecture the rest of us about. As we know already from earphones: graphs are insufficient for characterizing the sound of a device. And nothing is objective anyway.

Being opinionated is not being objective!

Whatever the theory tells us is one thing, listening is another. What’s important in the end is sound and not opinion. I have written all of the above before any listening test of the MFi09S cable.

Sonic Effects of Noise

I have experienced and described the effects of EMI and RFI (as well as switching noise, but not jitter) on the example of power supplies, for example the Burson Super Charger or the Allo Nirvana & Shanti and ifi Audio Power X. Contamination muddles the sound, it loses clarity and transparency. In the Burson case, I have no desire to go back to the stock power supply, the difference in the amp’s sonic performance was that huge.

Listening

We have learnt that the ddHifi MFi09S Lightning to USB-C cable is just one piece in the noise puzzle, sandwiched between a potentially noisy phone and a USB noise filter and a reclocker. That’s when the less imaginative audio linguist pulls out the phrase “your mileage will vary”. It is not a black and white affair. If the signal incoming from the phone is clean (just switch the Wifi and cell connection off), all a poor cable can do is deteriorate the signal, whereas a good cable has a high data integrity.

Round 1: iPhone SE (1st gen.) with different Lightning Cables

For my testing, I connected my iPhone SE (1st gen.) to the Questyle M15 DAC/amp with different lightning cables:

• ddHiFi MFi09S
• ddHiFi MFi06
• ifi Audio
• makeshift lightning cable 1: TC28i adapter with USB-C charging cable
• makeshift lightning cable 2: Apple camera adapter with USB cable

I then listened with the Moondrop Katos the Final E5000s. If there is a sonic difference between these cables, it is not obvious…and therefore negligible. In order to remove all doubt, I moved on to round 2.

Round 2: iPhone SE (1st gen.) vs. Hidizs AP80 Pro-X DAP

I listened with the Moondrop Kato’s to the following two setups:

• iPhone connected to the Questyle M15 via ddHiFi MFi09S cable
• Hidizs AP80 Pro-X DAP connected to the Questyle M15 via a generic UGREEN USB-C charging cable

Phone and DAP served as transports only – but both use different music softwares. The Hidizs setup sounds obviously better: richer, deeper, cleaner, with better dynamics and more headroom. I speculate the cleaner data stream and/or the different encoding from the dedicated (and therefore less noisy) player make the difference, but not the cable. The paradox is that a technically superior cable may not matter at all in many cases because of the other sound-influencing factors.

In the two test rounds, I toggled the phones cellular connection, Bluetooth, and Wifi on and off in all possible combinations, which also made no sonic difference.

Round 3: iPhone into Marantz SA8005 with different Lightning Cables

To put the lid on the pot, I played the iPhone through the Marantz SA8005 SACD player into the home stereo – and listened with the Sennheiser HD25 headphone with its integrated headphone amp. The MFi09S did not work at all, neither did the ifi Audio OTG cable – the iPhone was not recognized by the Marantz. Only the Apple Lightning cable, an MFI-certified Startech USB cable, and even a cheaper MFI-certified UGREEN charge cable worked. And no, there was no audible difference either.

Reasoning is the fact that the Marantz, like a Mac computer, requires a bi-directional power line (with charging functionality) to communicate with the phone. OTG cables generally do not offer that.

Interpretation

All cables tested “sound” the same. They appear to be reasonably well shielded against EMI/RFI and the metallic wire material used makes no sonic difference but rather other factors such as the source (software, noise) in the phone’s case.

In other words, the MFi09S is overkill for my applications. It may be as good as intended but cannot show its qualities in my setups. It would make a difference if the client DAC was emitting EMI/RFI, but this is a special case. The other fact to consider is that a DAP without network/general computing capabilities sounds better than a phone, even with a budget cable.

Although the MFi09S makes no sonic difference in my tests, it is still not snake oil!

Concluding Remarks

Whether a digital cable makes a sonic difference depends mainly on the data quality of the host. If my phone emits a noisy signal, even the best cable is wasted on it. On the other hand, even the cleanest signal can be contaminated by a poorly designed cable.

ddHiFi’s series of “audiphile” digital cables connects computers, daps, and phones to client DACs. Phones typically produce the noisiest data stream. The fact that I don’t hear a difference in sound quality between the MFi9S and other lightning cables may lie in the problematic phone source. An “audiophile cable” may simply be overkill for this job.

In summary, the lack of “obvious sonic improvement” as claimed by ddHiFi may not reflect on the cable – such a general claim is simply not tenable as such “improvement” (rather call it “lack of deterioration”) would depend on many other factors, too.

But just as with earphones cables, the MFi9S is a haptically substantial, well-handling, durable cable with quality connectors that also adds a visual “jewelry” effect to your OTG setup. Unless you are keen on the overpriced, white, easily fraying Apple equivalents…And there is still ddHiFi’s lower-priced MFi6 cable.

UPDATE 2023-01-03: I also tested the USB-C version of this cable, the ddHiFi TC09BC, and it does make a difference in my test setup. And there is a good explanation why…

Until next time…keep on listening!

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Disclaimer

THE MFi09S cable weather supplied by the ddHiFi for my review upon my request – and I thank them for that. I also thank Alberto for his input to this article.

Get them it from the DD Official Store

Our generic standard disclaimer.

About my measurements.

You find an INDEX of our most relevant technical articles HERE.

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The post ddHiFi MFi09S Digital Cable Review – Fancy Overkill! appeared first on Music For The Masses.

The Questyle M15 is a very enjoyable, powerful portable DAC/amp with an uncoloured, crisp, transparent sound far from being analytical or sterile. Candidate for “Best in Class” and on our “Wall of Excellence”.

Pros — Powerful, uncoloured, transparent sound; versatile usage; moderate current draw; great build.

Cons — Can’t find any.

The Questyle M15 was added to our Wall of Excellence.

Introduction

Jason Wang has been an audiophile since middle school. In university, he invented current mode amplification (CMA). CMA devices are characterized by their crisp and transparent sound. It became his ambition to produce audio products with the best possible sound quality. But nothing can remain the best forever, so we should always keep questioning for better. He made this his lifestyle. Jason combined his two principles to form the company Questyle in 2012. Got it?

Questyle had a huge impact with their first digital analog player QP1R back in 2016. Three of us have purchased one – and it remains our reference to this day. Their flagship dap QPM made it onto our Wall of Excellence as true endgame. And the CMA Twelve DAC/amp also collected very good marks from our team.

The company recently also followed the trend of battery-less dongle DAC/amps. Such dongles are marketed to people who want to play music in high quality on their phones, and who don’t want to have a second device in their pocket.

The current market is flooded with dongles – we covered a few – and it appears to be increasingly difficult for a new release to stick out. The 2021 M12 was Questyle’s first effort in this field. Our two guys in Europe were not…too impressed. That’s probably because of their expectations of the crisp Questyle sound, which the M12 did not deliver. It was unusually warm and soft to their ears.

Spoiler alert, the M15 returns to the strictly neutral sound Questyle made its name with. There are a few more things to say, for example how they did it…let’s start with the physicals.

Specifications

Physicals

In the box are:

• 1 * M15
• 1 * USB-A to USB Type-C cable,
• 1 * Type-C to Type-C cable
• 1 * Instruction manual
• 1 * Warranty card

The body is made of metal with a glass cover on top so that one can see the internals at any time. Sturdy, robust…as good as it gets.

Technology

The Questyle M15 incorporates the ES9281Pro SoC (System on Chip) that comprises an all-in-one DAC and headphone amplifier, which delivers a prefabricated sound so that all such devices sound similar. STOP! This is not the case with the M15.

Questyle engineers have enhanced the output signal by adding two Current Mode Amplification (CMA) SiPs (“System in Package”: each with two independent amplification circuits) to achieve the Questyle sound, which is characterized by ultra low distortion, a very low noise floor and very low output impedance of around 1 ohm. This low-voltage configuration is further meant to minimize power consumption, beneficial for mobile use.

The reason why Questyle did not bypass the SoC’s amp altogether is because that’s virtually impossible. And the reason why they didn’t use a pure DAC chip such as the ES9038 is size – it is simply too big. The ES9281Pro chip also features a USB module. Therefore, size and performance dictated the choice of chip.

The M15 offers both balanced (4.4 mm) and single-ended (3.5 mm) circuits.

Functionality and Operation

What it does

• Works plug and play with Windows, Linux, and OSX computers and Android/iOS devices.
• Plays music though single- ended (3.5 mm) and a more powerful balanced (4.4 mm) circuits.
• Supports almost all music streaming platforms worldwide, including Apple Music, Tidal, QQ Music, among others.
• Fully supports and decodes ALAC, FLAC, MQA, and other lossless formats.
• Features two data status indicators that will illuminate one of the following colors: green (sample rate is 48kHz or less), red (hi-res lossless playback: PCM 88.2kHz~384 kHz, or DSD64~DSD256), magenta (final unfold of an MQA Core stream).

What it does not

• Has no on-board control.
• Needs a lightning adapter to be used with iPhone.

The Questyle M15 does not have an on/off switch. It draws current from the host device and switches itself on, when a headphone of earphone is plugged into one of its two sockets.

Amplification and Power Consumption

The manufacturer’s amplification data are rather cryptic so that I put the Questyle M15 to a practical test. The problem is that balanced cables for full-sized, power hungry cans are hard to come by – to take advantage of the M15’s 4.4 mm balanced circuit, which is much beefier than the single-ended circuit (a generally valid statement).

Running the 300 ohm Sennheiser HD 600 on the (weaker) single-ended output – to my surprise – did not only provide enough power, it also maintained the zing, bite, and clarity experienced with easier to drive earphones.

Then I ordered a balanced cable for the balanced circuit – which worked even better. The M15 has enough power to adequately drive a 300 ohm headphone.

Questyle claims that the M15 has an ultra-low power consumption (which, of course, is relative to performance). I did a quick test with the FNIRSI-FNB48 voltmeter. The M15’s single-ended circuit has about twice the power drain of the “frugal” AudioQuest DragonFly Red, and approximately one third more than the DragonFly Cobalt. Both are designed for low power drain, which comes with compromises in performance.

The Questyle M15 has, however, a much smaller current drain than the much less powerful Hidizs S9 Pro. And it works with iPhone that limited power draw to 100 mA, which shuts out similar dongles such as the Astell & Kern PEE51.

I’d say the M15 is very current efficient, but you’d still better have a decent phone battery.

Sound

The Questyle M15 has a sonic signature owners of Questyle equipment love: essentially neutral with great extension at both ends, unparalleled resolution, clarity, transparency, and crisp dynamics – and all that without ever being strident or aggressive, sterile or analytical (Topping comes to mind as the opposite). Almost like a little class-A amp in your pocket. If you have listened to the QP1R dap or the CMA 12 DAC/amp, you will know what I am talking about.

Spatial reconstruction is excellent in both single-ended and balanced circuits. No compromise has been made for the single-ended circuit, the only difference between the two is power. This is in contrast to some other models that sacrifice headroom in their single-ended circuit such as the EarMen Sparrow.

And that’s all you have to know.

Questyle M15 compared

Questyle had released the $150 M12 a year earlier. In contrast, it features only a 3.5 mm single-ended circuit, and, most importantly, it has a different sound: softer and warmer than the M15 or QP1R dap…which did not quite delight Alberto at the time. The M15 also has a gain switch for driving a larger variety of headphones.

Apogee Groove: is much more powerful, way higher current drain, a very high output impedance of 20 ohm, and it does not run with most phones, not at all with iPhones. Its use with hybrid iems is not recommended by the manufacturer. Sonically, the Groove is more coloured and it drives headphones without the need of balanced cables. The Groove offers the best spatial reconstruction of all dongles I have tested but is limited to single dynamic driver earphones and headphones.

With the Sennheiser HD 600, the Groove delivers more dynamics and a deeper stage than the M15. The differences are, however, not substantial. In summary, the Groove excels in it specialized applicability, but the M15 is more universally deployable.

AudioQuest DragonFly Cobalt is smaller and thus handier on the go, has USB filtering included and sounds a bit smoother and a tad warmer. It has similar imaging and spatial reconstruction qualities. It is less powerful – at a lower power consumption, and therefore more limited in its application. The evaluation of sonic differences relies on personal taste but are on par in terms of overall quality. Both offer stellar sound.

Practical Aspects

Questyle and similar dap manufacturers offer dongle DAC/amps to cover the phone/table/notebook market. A dap has principally a cleaner data and power source than a phone or a computer, as it is designed for playing music only. Computer and phone feature other clocked internals that introduce contaminations (“noise”) to the sound. So you are always better off with a dap, sonically – any USB DAC/amp (“dongle”) is a compromise.

When it comes to dongles, the user has to pick their poison: low current draw (= low power = battery preservation) vs. high power (= better sound quality = battery hog). Both are mutually exclusive.

You obviously need a powerful dongle to operate full-sized cans. Devices optimized for low current draw such as the AudioQuest DragonFlys will be easy on your phone’s battery however not do a satisfactory job on demanding headphones. Clipping will occur which will first be noticed when the bass is getting muddy.

Battery hogs such as Hidizs S9 Pro will do a better job on such headphones but empty your phone in no time. The Apogee Groove will not run with most phones at all. Powerful AND low battery drain does not exist!

There is a fundamental lack of technical understanding by some testers who run full-sized, insensitive cans on battery-preserving dongles, then rate them lowly. This misuse conveys the wrong information on the quality of such devices and distorts the playing field.

Therefore, if you have an old phone, a DragonFly type dongle may be right for you. If you want to run full-sized headphones from your computer, you may favour the Apogee Groove type. The Questyle M15 strikes a good balance between powerful output and current drain. However, despite its advanced power management, it is not a miracle power saver. In the end, you have to factor your intended usage into your buying decision.

Concluding Remarks

The very versatile Questyle M15 dongle is as good as it gets in its category. It is for listeners with very high standards. I will use this one for future iem testing…and submit it for approval to be attached to our Wall of Excellence.

Until next time…keep on listening!

Contact us!

Disclaimer

I received the unit from Questyle Engineering for my analysis. I thank them for that as well as for responsive in answering my questions. You can purchase the M15 at the Questyle Shop.

Our generic standard disclaimer.

The post Questyle M15 Review (1) – Stellar By Starlight appeared first on Music For The Masses.

Cons — Keine Vorverstärker Funktion; kein Kopfhöreranschluss; 4.4 mm Buchse ist derzeit noch selten.

Dieser Artikel wurde vom Author aus dem kanadischen Englisch übersetzt. Das Original finden Sie hier.

Zusammenfassung

Der EarMen Tradutto ist ein natürlicher, quasi-neutral klingender DAC (Digital-Analog Wandler) der sich durch sein minimalistisches, künstlerisches Design und seine stromlinienförmige Funktionalität von der Konkurrenz unterscheidet. Er funktioniert gleichermaßen mit Kopfhörerverstärkern und Stereoanlagen. Ein DAC für den anspruchsvollen Puristen.

Einführung

Traduttore ist italienisch für “Übersetzer”. Tradutto ist offensichtlich ein Wortspiel, da ein Digital-Analog Wandler (DAC) Nullen und Einsen in Klang übersetzt. Und das ist es, was dieses $799 Gerät tut: Es ist ein reiner DAC ohne (Kopfhörer-) Verstärker. Seine Aufgabe ist es, ein hochwertiges Audiosignal zu erzeugen, das dann von einem anderen Gerät verstärkt wird.

Auf der anderen Seite der Adria von Italien aus liegt Serbien, die Heimat der Produktionsstätten von EarMen. Von hier aus produzieren sie “Made in Europe”. Das Unternehmen selbst ist in Chicago, IL, registriert. Es wurde 2019 als Spin-off des serbischen Premium-Herstellers Auris Audio gegründet.

Bisher hat sich EarMen auf wenige Produkte von hoher Qualität konzentriert. Ihr $250 TR-amp ist ein großartiger tragbarer, batteriebetriebener DAC/Amp im Wert, der sogar 300 Ohm Kopfhörern wie dem Sennheiser HD 600 gerecht wird. Ihr $200 Sparrow Dongle verfügt über zwei Schaltkreise, von denen der symmetrische (“balanced”) die größte Klangbühne meiner Testpopulation erzeugt. Beide Geräte befinden sich derzeit auf unserer eigenen Wall of Excellence.

Das Tradutto ist das erste echte “Desktop-Size” Gerät von EarMen, obwohl seine Verwendung nicht auf Arbeitsbereiche oder persönliche Kleinstereoanlage beschränkt ist, sondern auch mit einem Stereosystem in voller Größe eingesetzt werden kann.

Spezifikationen

Öffnen Sie hier für vollständige Spezifikationen

Inputs	BlueTooth QCC5124	Bluetooth 5.1 ( AAC, SBC, aptX, aptX HD, aptX LL )
	USB
	TOSLINK	S/PDIF optical
	Coax	S/PDIF
Outputs	RCA (SE output)	output impedance = 300 Ω
	Balanced 4.4mm	output impedance = 600 Ω
Audio Formats	PCM	up to 768kHz
	DSD	DoP64, DoP128, DoP256, native DSD512
	DXD	up to 768kHz
	MQA	OFS (MQB/MQA Core), MQA,  MQA Studio
	Bluetooth	44.1kHz – 192kHz/16bit – 24bit
Single-end output
	USB input	S/PDIF input/BT
Output Level	2Vrms 0dBFS	2Vrms 0dBFS
THD+N	0.0003%	0.0003%
SNR	>116dB	>116dB
	A-Weighted	A-Weighted
Freq. Response	±0.014dB	±0.006dB
Fully Balanced Output
	USB input	S/PDIF input/BT
Output Level	4Vrms 0dBFS	4Vrms 0dBFS
THD+N	0.0003%	0.0003%
SNR	>120B	>122dB
	A-Weighted	A-Weighted
Freq. Response	±0.03dB	±0.003dB
Dimension LxHxW	150x30x150 mm	5,9″x1,18″x5,9″
Weight	550 gr	1,21lbs

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Technologie/Architektur

Der Tradutto beherbergt den XMOS 16-Core-Empfängerchip und den S9038Q2M DAC-Chip. Der XMOS 16-Core (XU216) ist einer der Standards in Premium-DACs für die Verarbeitung der von den USB/S/koaxialen Eingängen empfangenen Daten. Es verarbeitet zum Beispiel die MQA-Dekodierung im Tradutto.

In ähnlicher Weise ist der ES9038Q2M ein bewährter DAC-Chip, der digitale Audiodateien bis zu 32bit/768kHz oder DSD512 verarbeitet. Sie können diesen Chip fast überall finden, vom 2150 $ Burson Conductor 3 (enthält zwei davon), über den 300 $ DragonFly Cobalt und 200 $ Khadas T2 Pro, bis hin zum 80 $ Shanling UA2. Der hauseigene $250 TR-amp von EarMen verfügt auch über diesen Chip.

Die (Un) Bedeutung des DAC-Chips: Keines dieser “ES9038Q2M”-Geräte klingt gleich (ich habe den Burson nicht getestet. Entgegen die Echokammer von “Experten” erzeugt ein DAC-Chip allein keinen charakteristischen Klang, sondern ist hauptsächlich für den Umgang mit Audioformaten verantwortlich. Wie Paul McGowan von PS Audio mir sagte: “Die Art und Weise, wie ein DAC klingt, hat alles mit seiner analogen Ausgansstufe zu tun und wenig mit seinem DAC-Chip”. Aufgrund dieses allgemeinen Missverständnisses und um sich vor Fehlinformationen zu schützen, geben viele Hersteller den verwendeten DAC-Chip überhaupt nicht an (z.B. Sony). Gordon Rankin von Wavelength Audio fügt die anderen Faktoren hinzu, die den Klang erzeugen: Power, Filter, analoges Design, digitales Design, Software usw. Um DAC-Chips zu vergleichen, muss alles andere identisch sein, wie zum Beispiel bei den iPods Classic, die entweder Wolfson- oder Cirrus-Chips enthielten.

Traduttos Klang und Klangqualität werden tatsächlich durch den analogen Teil des DAC bestimmt, der das Ergebnis einer Kombination von verbauten Komponenten und technischer Finesse ist.

Nach dem Filtern des “zackigen” Signals, das aus dem DAC (Chip) kommet, führt die analoge Ausgangsstufe mehrere Aufgaben aus, z. B. Verstärkung, zusätzliche Filterung, Entfernen von Verzerrungen und Rest-DC, Pufferung und Bereitstellung von ausgewogenen und Single-End-Ausgängen.

Die analoge Ausgangsstufe des Tradutto verfügt über deutsche Kondensatoren in WIMA-Qualität “für High-End-Audioanwendungen”, um THD, Audioelektrolyte in Kombination mit amerikanischen MELF-Ren mit geräuscharmen Widerständen und SoundPlus OPA1642 Betriebsverstärkern (“Op-Amps”) von Texas Instruments zu minimieren.

Aber noch wichtiger als die Teile ist die Technik. EarMen behaupten, Jitter (“Paketfehler”) durch die Trennung von DAC und analogem Teil durch die Stromversorgung minimiert zu haben. Die Leiterplatte ist vergoldet für optimale Kontakte. Und das solide Metallgehäuse minimiert externe Störungen.

Der Tradutto enthält den Bluetooth QCC5124 SoC (“System on Chip”) für drahtloses Hören – das dem Bluetooth 5.1-Standard folgt.

Zu guter Letzt verfügt der Tradutto über einen vollständig symmetrischen Schaltkreis, der mit einem symmetrischen Verstärker optimal funktioniert.

Physische Aspekte

In der Box ist viel mehr als in der Bedienungsanleitung angegeben. Neben dem DAC, der Fernbedienung, der Stromversorgung mit Adaptern für den weltweiten Netzzugang, der Bluetooth-Antenne und dem Benutzerhandbuch sind außerdem ein USB-Kabel, eine Netztasche (für das Netzteil) und ein Mikrofasertuch enthalten.

Der Tradutto ist ein sehr kompaktes, aber ziemlich schweres Gerät in einem robusten Aluminiumgehäuse. Die Kombination aus relativ hohen Füßen und der sauberen, quadratischen Form mit scharfen Ecken verleiht ihm eine minimalistische Eleganz mit italienischem Design-Charisma.

Die Designer hatten eindeutig ein optische und haptische Anziehungskraft bis ins kleinste Detail im Auge, einschließlich der Schriftart, die für den Namen auf der Vorderseite ausgewählt wurde. Das Tradutto spricht daher nicht nur unsere Ohren, sondern auch unsere Augen (und Finger) an … und damit alle unsere Sinne.

Funktionalität und Bedienung

Das tut er

• Liefert einen vollen, satten, dynamischen, natürlichen Klang
• Bietet symmetrische und asymmetrische Schaltkeiseakzeptiert
• Akzeptiert eine Vielzahl von Quellen per Bluetooth (Telefon, DAP), USB (Computer) und koaxial/optisch (CD-Player)
• Wird mit einer raffinierten wiederaufladbaren Fernbedienung geliefert

Das tut er nicht

• Verstärken
• Arbeit als Vorverstärker Funktion auswählbare Filter
• work as pre-amp
• feature selectable filters

Vorderseite

Das minimalistische Design wird durch sehr klar angeordnete Betriebselemente auf der Vorderseite ergänzt: 4 Tasten mit einem hörbaren, robusten Qualitätsmechanismus und einem unauffälligen OLED-Display, das Ihnen Bit/KHz-Zahlen für die USB- Verbindung gibt, sowie “COAX”, “TOS” oder “BT” für die anderen Eingabeoptionen.

Kein Drehknopf, keine “tanzenden” Farbdiagramme, keine wählbaren Filter – die Form folgt eindeutig der Funktion. Der Tradutto ist so konzipiert, dass er funktioniert, um Nullen und Einsen in den bestmöglichen, natürlichen Klang zu übersetzen. Keine Verstärkung, keine Kopfhörerbuchse. That’s all.

Rückseite

Die Rückwand verfügt über alle Ein-/Ausgänge (von L bis R): 12 V SMPS- Stromversorgung, Bluetooth-Antenne, S/PDIF-Eingange (koaxial und Toslink) und RCA und 4.4 cm symmetrisch. 4.4 cm ist derzeit noch selten, spart aber Platz im Vergleich zu einer XLR-Buchse. Ein 12-V-SMPS-Netzteil ist im Lieferumfang enthalten.

Fernbedienung

Die vier Tasten der Vorderseite des Tradutto finden sich auf der mitgelieferten Fernbedienung wieder.

Die Fernbedienung ist aus Metall, hat eine großartige Haptik und ihre Tasten haben den hochwertigen Federmechanismus, wie auch am Tradutto selbst.

Sie wird über jede 5V- Stromversorgung/Computerbuchse über seine USB-C-Buchse aufgeladen. Ladegerät und Kabel sind nicht im Lieferumfang enthalten.

Klang

Eine Sache, über die ich bei vielen DACs/Verstärken entsetzt bin, ist die Klangsterilität. Ich bin ein Kind der vordigitalen Ära, die bis in die späten 1970er Jahre zurückgeht, und – mit Kopfhörern – opfere ich gerne Auflösung für organischen Klang.

Einer der größten Mängel von minderwertigen DACs ist ein Mangel an Realismus und Bühnentiefe, aber mit einer Portion zusätzliche Schärfe und einem dünnen Mitteltonbereich. Schließlich tun sowohl ein 4000-Dollar- als auch ein 100-Dollar-DAC prinzipiell dasselbe: Klang (Qualität) zu erzeugen, der dann verstärkt werden muss. Ein Wow-Effekt deutet selten auf Qualität hin: Es ist der langfristige Genuss, der zählt.

Ich habe den Tradutto mit Kopfhörern in einer Desktop Aufstellung und auch mit Lautsprechern auf meiner großen Stereoanlage getestet. Ich konnte den 4.4-mm symmetrischen Schaltkreis (vorerst) nicht testen, da ich keinen passenden Verstärker zur Hand hatte. Das wird aber in den Updates nachgeliefert.

mit Kopfhörern

Verwendete Ausrüstung: Macbook Air (WiFi aus, batteriebetrieben) mit verschiedenen USB-Kabeln (Lager, Belkin Gold, AudioQuest Forest), Questyle QP1R mit optischem Lifatec USA Toslink Kabel, iPhone SE (1. Generation); AudioQuest Golden Gate RCA Kabel; Burson Funk Kopfhörerverstärker; Sennheiser HD 600 Kopfhörer.

Es ist sehr schwierig, den Klang einer einzelnen Stereokomponente in einer Kette zu isolieren, so dass ich durch den Vergleich mit anderen DACs zu meiner Beschreibung kam.

Mein allgemeiner Eindruck ist, dass der Tradutto sehr natürlich, sehr reif, nie analytisch, nie schlank, nie scharf oder aggressiv spielt. Es hat eine natürliche Dynamik und ist über das gesamte Frequenzspektrum hinweg sehr ausgeglichen.

Der Bass ist nuanciert, der untere Mittelton ist reich und voll, es gibt keine unangenehme Schärfe im oberen Mitteltonbereich. Die Klangbühne ist breit mit großartiger Räumllichkeit.

Die Dynamik ist natürlich dosiert, nie überwältigend oder zu höflich.

Ersetzte man Macbook/Tradutto Kombination mit den tragbaren Questyle QP1R DAP (es wird angenommen, dass sein eingebauter DAC mit 500-700- Desktop-DACs konkurriert), gab es einen ziemlichen Klangunterschied: Die Macbook/Tradutto-Kombination hatte eine bessere Dynamik, Klarheit und Klangerweiterung.

Der Austausch des Tradutto durch andere Geräte mit dem ES9038Q2M Chip beseitigte jeden Zweifel an dem allgemeinen Missverständnis über die Rolle eines DAC-Chips für den Klang.

Der $250 EarMen TR-amp (als DAC) klingt etwas wärmer als der Tradutto und ihm fehlt die Höhenerweiterung – aber er kann mit der Bassquantität konkurrieren. Nicht mithalten kann er mit der Klangbühne, der Klarheit, der Trennung und der Detailauflösung des Tradutto. Aber es klang nie scharf oder digital, hart oder schlank. Der Tradutto klingt lebendiger, besser erweitert, mit besser definierten Noten. TR-amp klingt schlanker und weniger dynamisch/energetisch.

Der Khadas Tone2 Pro klingt flacher mit einem gedämpften Mittelton. Es fehlt an Tiefe im Vergleich zu den beiden anderen Geräten. Stimmen klingen schlank und distanziert, was eine luftige Komponente und eine gute Bühnenbreite hinzufügt. Aber es fehlt vergleichsweise an Klangreichtum und Klangkörper.

AudioQuest DragonFly Cobalt (ohne dedizierten Line-Out) benötigt mehr von der Verstärkerleistung des Burson als die anderen DACs (ich habe Cobalts Ausgangsvolumen nur auf 80% eingestellt, um Verzerrungen zu vermeiden). Es fehlt ein wenig an Dynamik, klingt aber eher organisch und natürlich – und überraschend voll und reichhaltig. Der Tradutto hat mehr Biss, er spielt größer und klarer…

Zusammenfassend lässt sich sagen, dass keiner dieser DACs gleich klingt.

mit Stereoanlage

Test Equipment: Marantz SA8005 SACD Player mit Cirrus CS4398 DAC; Blue Jeans Coaxial Kabel, Sys Concept 1300 strand Tousling Kabel, AudioQuest Evergreen RCA Kabel; Luxman L-410 Vollverstärker; Heybrook HB1 Lautsprecher & Sennheiser HD 600 headphones.

Mit CDs als Musikquelle konnte ich leicht zwischen dem integrierten Cirrus 4398 DAC des SA8005 und dem Tradutto hin- und herschalten, sowie auch zwischen den koaxialen und optischen Eingängen des Tradutto.

Der Marantz ($1400 CAD im Jahr 2014) ist bekannt für seine glatte, reichhaltige, saubere, ausgewogene Klangqualität und seine natürliche Reproduktion. Es hat ein “süße” Höhen, aber es fehlt ein bisschen Glanz. Sein integrierter DAC ist etwa auf dem gleichen Preisniveau wie der Tradutto, da die Basisversion dieses Spielers damals $550 CAD betrug.

Beim Wechsel zwischen Marantz und Tradutto (koaxialer Eingang) ist der Unterschied … im Wesentlichen Null beim gelegentlichen Hören … und daher für den täglichen Gebrauch ignorierbar. Aber wenn ich etwas Zeit verbringe und mein analytisches Ohr benutze, ist der Marantz ein bisschen bassiger und wärmer mit einem weniger kontrollierten, schlampigeren unteren Frequenzbereich. Dies führt zu einer engeren Bühne und einer schlechteren Auflösung im unteren Mitteltonbereich.

Der Tradutto hat das den kompakteren, schnelleren Bass und die bessere Notendefinition bis zum unteren Mittelbereich. Es spielt auch ein bisschen wärmer als neutral (aber weniger als der Marantz) – was der “Haus Sound” von EarMen zu sein scheint (auch in TR- amp, Sparrow und Eagle zu finden).

Bei den Höhen hat Tradutto (koaxial) eine etwas bessere Ausdehnung und beide bieten einen natürlichen Zerfall von hohen Tönen, z.B. Becken. Und da scheitern mittelmäßige DACs zumeist- sie klingen künstlich.

Sowohl Tradutto als auch Marantz haben keine Dämpfung im Mittelton, keinen schlanken Gesang, sie sind reich und üppig. Die Laute sind im 3D-Raum im Tradutto besser ausgerichtet, das auch die breitere Bühne hat.

Beim Wechsel von koaxialem zum optischen Eingang gibt es einen Unterschied, dass der TOSLINK im Vergleich zu koax etwas langsamere Transienten erzeugt. Die Noten sind abgerundeter und das Klangbild ist ein bisschen glatter – auch im Vergleich zum Cirrus DAC. Aber auch hier sind die Unterschiede gering.

Insgesamt ist der Tradutto über das gesamte Frequenzspektrum etwas besser aufgestellt als der Marantz – der für mein System für den täglichen Gebrauch im wesentlichen keine Rolle spielt.

Ich habe die Ergebnisse mit dem Sennheiser HD 600, der an den Luxman- Verstärker angeschlossen ist, reproduziert.

Was wir lernen, ist, dass der Tradutto natürlich klingt und nicht analytisch oder aggressiv oder zu schlank. Es macht seine Sache sehr gut.

Bluetooth

Der Qualcomm SoC liefert so ziemlich einen vorgefertigten Standard Sound in einer “Black Box”, bei der der Ingenieur den Sound nicht optimieren kann.

I habe Bluetooth vs. koax mit zwei iPhone (bei gleicher Musik) verglichen, eines fest verdrahtet in den Marantz, das andere drahtlos per Bluetooth.

Bluetooth spielt leiser, es verliert etwas an Reichtum und Intimität und ist kantiger, aber es ist immer noch dezent und mehr als gut genug für zwangloses Zuhören.

Die Verbindung war großartig, ich ging um den 1000 Quadratfuß großen Boden meines Hauses (mit dem iPhone) herum und hatte nie Probleme.

UPDATE: Vergleich mit SMSL DO200 MKII DAC(2023- 01-10)

Ich habe kürzlich den 469 $ SMSL DO200 MKII DAC getestet und hatte die Gelegenheit, ihn mit dem Tradutto zu vergleichen. Ich habe sie Seite an Seite auf der Stereoanlage und mit dem Burson Funk Kopfhörerstärker mit Burson Super Charger und Burson V6 Classic Opamps und modifizierten Sennheiser HD 600 Kopfhörern getestet, wie im DO200 MKII-Artikel beschrieben.

Beide Hersteller verfolgen unterschiedliche Philosophien. EarMen gibt Ihnen das fertige Paket, das auf den Punkt abgestimmt ist, der ihrer Meinung nach am besten klingt. SMSL hingegen überlässt dem Benutzer die Feinabstimmung (und damit die Verantwortung für den besten Klang). Der DO200 MKII verfügt daher über mehrere hundert Kombinationen von Filtern und Klangprofilen (“harmonische Verzerrungen”).

EarMen sind selbstbewusst und betrachten ihre Produkte als optimiert und weisen ihnen eine lange Haltbarkeit zu – SMSL haben ihren ursprünglichen DO200 innerhalb eines Jahres aktualisiert, so dass der Benutzer nach einer ziemlich kurzen Zeit bereits ein veraltetes Gera4t besitzt.

Baulich ist der Tradutto mit seinem schweren Monoblock- Aluminium-Chassis und seiner Metallfernbedienung robust wie ein Panzer. Es übertrumpft alles um ihn herum (und das tun auch der EarMen Angel und  TR-amp).

Was den Klang betrifft, habe ich den SMSL bei seinen Standardeinstellungen belassen, da die Unterschiede zwischen den Optimierungsoptionen minimal waren. Der DAC klingt sehr gut und schlägt wahrscheinlich die meisten anderen in seiner Preiskategorie. Im Vergleich zum Tradutto klingt der SMSL jedoch etwas weniger offen.

Der Tradutto klingt im Mittelton reicher und ein bisschen viszeraler, aufgeschlossener und immersiver mit einer tieferen Bühne.

UPDATE: Tradutto mit EarMen CH-Amp (2023-02- 20)

Der Tradutto wurde entwickelt, um mit dem EarMen CH-Amp zu harmonieren. Ich habe beide ab der Weihnachtszeit 2022 zwei Monate lang getestet. Der CH-Amp wird mit dem riesigen PSU-3-Netzteil geliefert, das auch den Tradutto (und zwei weitere Geräte) antreibt – und seinen Klang verbessert.

Die Standardfernbedienung des CH-Amp steuert beide Geräte. Die Ingenieure von EarMen konnten die Größe der Gehäuse minimieren, indem sie einen 4.4-mm symmetrischen Anschluss wählten (anstelle des umständlichen XLR). Der EarMen-Stack hat einen Fußabdruck, der kaum größer ist als eine CD – und minimiert Kabelsalat.

Der symmetrische Schaltkreis erzeugt ein tieferes Klangbild als er asymmetrische – abgesehen davon, dass er leistungsfähiger ist. Lesen Sie Details zu dieser Synergie in meinem CH-Amp Artikel.

Abschließende Bemerkungen

Nach 2 Monaten des Testens [jetzt 1 Jahr einschließlich des letzten Updates] komme ich zu dem Schluss, dass der EarMen Tradutto das tut, was er tun soll: ein analoges Audiosignal von höchster Qualität erzeugen. Und es liefert prompt. Er ist klanglich geringfügig vor meinem High-End-Marantz SA8005 SACD-Player und schlägt alle anderen ES9038Q2M-Geräte, mit denen ich ihn verglichen habe, um eine Meile.

Abgesehen von seinen klanglichen Fähigkeiten ist der Tradutto ästhetisch ansprechend (“italienisches Design”) und eignet sich gut, mit hochwertigen Tastenmechanismen und einer wiederaufladbaren Fernbedienung. Nach dem Testen so vieler “EarMen” kristallisiert sich heraus, dass ihre Produkte gut durchdacht sind, daher für eine lange Zeit relevant und von beispielloser Verarbeitungsqualität sind.

Der Tradutto ist ein weiteres ausgereiftes Produkt mit der Erfahrung von Auris Audio dahinter. Es ist klein genug, um auf Ihr Schreibtisch/Stereosystem zu passen, einfach zu bedienen, und es sieht gut aus und klingt großartig. Was wollen wir sonst noch?

Bis zum nächsten Mal….keep on listening!

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HAFTUNGSAUSSCHLUSS

Der EarMen Tradutto wurde mir von EarMen für meinen Test zur Verfügung gestellt, wofür ich mich herzlich bedanke. Sie können es im EarMen Shop erwerben. Ich danke Gordon Rankin von Wavelength Audio und Paul McGowan von PS Audio für das Gespräch.

Our generic standard disclaimer.

You find an INDEX of our most relevant technical articles HERE.

Galerie

The post EarMen Tradutto DAC Testbericht aus Kanada appeared first on Music For The Masses.

Cons — No pre-amp function/headphone jack; 4.4 balanced output is currently still a rare standard.

Executive Summary

The EarMen Tradutto is a natural, quasi-neutral sounding DAC that distinguishes itself from the competition through its minimalistic, artsy design and streamlined functionality. It works with headphone amps and stereo systems alike. A DAC for the demanding purist.

Introduction

Traduttore is Italian for “translator”. Tradutto is obviously a play on this as a digital analog converter translates zeros and ones into sound. And that’s what this $799 unit does: it is a DAC without a (headphone) amp. Its job is to create a quality audio signal that is then amplified by another device.

Across the Adriatic sea from Italy is Serbia, home of EarMen’s production facilities. From here you get “Made in Europe”. The company itself is registered in Chicago, IL. It was established in 2019 as a spinoff of Serbian premium manufacturer Auris Audio.

So far, EarMen have focused on few products of high quality. Their TR-amp is a great $250 portable, battery-operated DAC/amp that does justice to even to 300 ohm cans such as the Sennheiser HD 600. Their $200 Sparrow dongle features two circuits, of which the balanced produces the largest soundstage of my test population. Both devices are currently on our very own Wall of Excellence.

The Tradutto is EarMen’s first true “desktop size” device, although its use is not limited to workspaces and personal stereo, but it can also be deployed with a full size stereo system.

Specifications

Unfold for Full Specifications

Inputs	BlueTooth QCC5124	Bluetooth 5.1 ( AAC, SBC, aptX, aptX HD, aptX LL )
	USB
	TOSLINK	S/PDIF optical
	Coax	S/PDIF
Outputs	RCA (SE output)	output impedance = 300 Ω
	Balanced 4.4mm	output impedance = 600 Ω
Audio Formats	PCM	up to 768kHz
	DSD	DoP64, DoP128, DoP256, native DSD512
	DXD	up to 768kHz
	MQA	OFS (MQB/MQA Core), MQA,  MQA Studio
	Bluetooth	44.1kHz – 192kHz/16bit – 24bit
Single-end output
	USB input	S/PDIF input/BT
Output Level	2Vrms 0dBFS	2Vrms 0dBFS
THD+N	0.0003%	0.0003%
SNR	>116dB	>116dB
	A-Weighted	A-Weighted
Freq. Response	±0.014dB	±0.006dB
Fully Balanced Output
	USB input	S/PDIF input/BT
Output Level	4Vrms 0dBFS	4Vrms 0dBFS
THD+N	0.0003%	0.0003%
SNR	>120B	>122dB
	A-Weighted	A-Weighted
Freq. Response	±0.03dB	±0.003dB
Dimension LxHxW	150x30x150 mm	5,9″x1,18″x5,9″
Weight	550 gr	1,21lbs

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Technology/Architecture

The Tradutto hosts the XMOS 16-core receiver chip and the ES9038Q2M DAC chip. The XMOS 16-core  (XU216) is one of the standards in premium DACs for processing the data received by the USB/S/coaxial inputs. It handles MQA decoding in the Tradutto, for example.

Similarly, the ES9038Q2M is a proven DAC chip that processes digital audio files up to 32bit/768kHz or DSD512.  You can find this chip across the board, from the $2150 Burson Conductor 3 (contains two of them), through the $300 DragonFly Cobalt and $200 Khadas T2 Pro, to the $80 Shanling UA2. EarMen’s own $250 TR-Amp also features this chip.

Tradutto’s sound and sound quality are actually determined by the DAC’s analog part, which is the result of a combination of parts and engineering.

After filtering the signal’s jagged edges coming out of the DAC (chip), the output analog stage performs several duties, for example, amplifying, additional filtering, removing distortions and residual DC, buffering, and providing balanced and single-ended outputs.

The Tradutto’s analog output stage feature German WIMA quality capacitors “for high-end audio applications” to minimize THD, audio electrolytes in combination with American MELF low noise resistors, and SoundPlus OPA1642 operational amplifiers (“op-amps”) by Texas Instruments.

But even more important than the parts is the engineering. EarMen claim to have minimized jitter (“packet errors”) through the separation of DAC and analog part by the power supply. The printed circuit board is gold plated for optimal contacts. And the solid metal chassis minimizes external interference.

The Tradutto incorporates the Bluetooth QCC5124 SoC (“System on Chip”) for wireless listening – that follows the Bluetooth 5.1 standard.

Last but not least, the Tradutto features a fully balanced circuit, which will work with your balanced amplifier.

Physical Things

In the box is way more than stated in the manual. Apart from the DAC, remote control, power supply with adapters for worldwide mains access, Bluetooth antenna, and user manual, further included are a USB cable, a mesh bag for the power supply, and a microfibre cloth.

The Tradutto is a very compact but rather heavy device in its sturdy aluminum enclosure. The combination of relatively tall feet and the clean, square shape with sharp corners give it a minimalistic elegance with Italian design charisma.

The designers clearly had optical and haptical appeal in mind down to the smallest detail, which includes the font selected for the name on the front. The Tradutto therefore does not only address our ears, but also our eyes (and fingers)…and therefore all senses.

Functionality and Operation

It does

• create a full, rich, dynamic, natural sound
• connect to balanced and single-ended amplifier circuits
• accepts a variety of sources per Bluetooth (phone, dap), USB (computer), and coaxial/optical (CD player)
• come with a nifty rechargeable remote

It does not

• amplify
• work as pre-amp
• feature selectable filters

Front Panel

The minimalistic design is complemented by very clean operational elements on the front panel: 4 buttons with an audible, rugged quality mechanism and an unobtrusive OLED display that gives you bit/kHz numbers for the USB connection, and “COAX”, “TOS”, or “BT” for the other input options.

No dial knob, no “dancing” colour graphs, no selectable filters — form clearly follows function. The Tradutto is designed to work, to translate zeros and ones into the best possible, natural sound. No amplification, no headphone jack. That’s it.

Back Panel

The rear panel features all inputs/outputs (from L to R): 12 V SMPS power supply, Bluetooth antenna, S/PDIF (optical and coaxial) in, and RCA and 4.4 cm balanced out. 4.4 cm balanced is not the most common standard but it saves space compared to an XLR socket. A 12 V SMPS power supply is included.

Remote

The Tradutto’s front panel’s four buttons are mirrored on the included remote.

The remote is made of metal, has a great haptic, and its buttons have the quality spring mechanism experienced at the front panel.

It charges through any 5V power supply/computer socket through its USB-C socket. Charger and cable are not included.

Sound

One thing I am horrified of in DACs/amps is sonic sterility. I am a child of the pre-digital era going back to the late 1970s, and – with earphones – sacrifice detail resolution for organic sound.

One of the biggest shortcomings of low-quality DACs is a lack of realism and depth of stage, but added sharpness, and a thin, distant midrange. After all, both a $4000 or a $100 DAC do one thing, and one thing only: create sound (quality), that then needs to be amplified. A wow effect does rarely indicate quality: it is the long-term enjoyment that counts.

I tested the Tradutto with headphones in a desktop setting, and also with speakers on my big stereo system. I could not test the 4.4 mm balanced owing to lack of a balanced amplifier.

w. Headphones

Equipment used: Macbook Air (WiFi off, battery operated) with different USB cables (stock, Belkin Gold, AudioQuest Forest), Questyle QP1R with Lifatec USA optical cable, iPhone SE (1st gen.); AudioQuest Golden Gate RCA interconnects; Burson Funk amp; Sennheiser HD 600 headphones.

It is very difficult to isolate the sound of a single stereo component in a chain so that I arrived at my description through comparison with other DACs.

My general impression is that the Tradutto plays very natural, very maturely, never analytical, never lean, never sharp or aggressive. It has natural dynamics and is well composed across the frequency spectrum.

Bass is tight, lower midrange is rich and full, there is no upper midrange glare, and cymbals at the top decay naturally and are well resolving. Soundstage is wide with great spatial cues.

Dynamics is naturally dosed, never overwhelming or too polite.

When substituting the Macbook/Tradutto source/DAC with the portable Questyle QP1R DAP (its built-in DAC is believed to rival $500-700 desktop DACs), there was quite a sonic difference: the Macbook/Tradutto combo had better dynamics, clarity, and extension.

Substituting the Tradutto with other ES9038Q2M chip devices removed any doubt on the general misconception of the role of a DAC chip for sound.

The $250 EarMen TR-amp (as DAC) sounds slightly warmer than the Tradutto and it lacks the upper extension — but it can compete with the amount of bass. It does not rival the Tradutto’s soundstage, clarity, separation, and detail resolution. But it never sounded sharp or digital, harsh or lean. The Tradutto sounded livelier, better extended, with better defined notes. TR-amp is thinner and less dynamic/energetic.

The Khadas Tone2 Pro sounds flat with an attenuated midrange. It lacks depth in comparison to the other two devices. Voices sound lean and distant, which adds a component of air and a good stage width. But it lacks richness and body.

AudioQuest DragonFly Cobalt without dedicated line-out needs more of the Burson’s amping power than the other DACs (I only set its output volume to 80% to avoid distortion). It lacks a bit in dynamics but sounds rather organic and natural – and surprisingly full and rich. The Tradutto has more bite, it plays bigger and clearer…

In summary, none of these DACs sound alike.

w. Stereo System

Equipment used: Marantz SA8005 SACD player with Cirrus CS4398 DAC; Blue Jeans coax cable, Sys Concept 1300 strand optical cable, AudioQuest Evergreen RCA interconnects; Luxman L-410 stereo amplifier; Heybrook HB1 speakers & Sennheiser HD 600 headphones.

Using CDs as source, I could easily A/B between the SA8005’s integrated Cirrus 4398 DAC and the Tradutto, and also A/B between the Tradutto’s coax and optical inputs.

The Marantz ($1400 CAD in 2014) is known for its smooth, rich, clean, well balanced tone quality and its natural reproduction. It has a sweet treble but lacks a bit of sparkle. Its integrated DAC is at about the same price level as the Tradutto as the basic version of this player was $550 CAD at the time.

When switching between Marantz and Tradutto (coax), the difference is…essentially zero at casual listening…and therefore ignorable for everyday use. But when spending some time and using my analytical ear, the Marantz is a tad bassier and warmer with a lesser controlled, fuzzier low end. This results in a narrower stage and less lower midrange separation and resolution.

The Tradutto has the tighter, faster low end and better note definition up to the lower midrange. It also plays a tad warmer than neutral (but less so than the Marantz) – which appears to be EarMen’s house sound (also found in TR-amp, Sparrow, and Eagle).

Towards the top of the spectrum Tradutto (coax) has a slightly better extension and both offer natural decay of high notes e.g. cymbals. And that’s where mediocre DACs fail — they sound articial.

Both Tradutto and Marantz have no attenuation in the midrange, no lean vocals, they are rich and lush. Vocals are better aligned in 3D space in the Tradutto, which also has the wider stage.

When switching from coax to optical, there is a difference in that the TOSLINK produces slightly slower transients compared to coax. The notes are more rounded and the sonic image is a tad smoother – also compared to the Cirrus DAC. Again, the differences are small.

Overall, the Tradutto is slightly better composed across the frequency spectrum than the Marantz — which plays essentially no role for my system for everyday use.

I re-produced the results with the Sennheiser HD 600 plugged into the Luxman amp.

What we learn is that the Tradutto sounds natural and not analytical or aggressive or lean. It does its job very well.

Bluetooth

The Qualcomm SoC delivers pretty much a prefab standard sound in a black “box” where the engineer cannot optimize the sound.

I A/B-ed Bluetooth vs. coax with two iPhones (same music), one hardwired into the Marantz, the other wireless per Bluetooth.

Bluetooth plays quieter, it looses some richness and intimacy, and is edgier, but it is still decent, and more than good enough for casual listening.

Connection was great, I walked around the 1000 sq ft floor of my house (with the iPhone) and never had any problems.

UPDATE: Comparison with SMSL DO200 MKII DAC (2023-01-10)

I recently tested the $469 SMSL DO200 MKII DAC, and had the opportunity to compare it with the Tradutto. I tested them side by side on the stereo system and with the Burson Funk amplifier with Burson Super Charger and Burson V6 Classic opamps and modified Sennheiser HD 600 headphones as described in the DO200 MKII article.

Both manufacturers pursue different philosophies. EarMen gives you the ready package tuned to the point that is sounds best in their opinion. SMSL, in contrast, leaves the fine tuning (and therefore the responsibility of the best sound) to the user. The DO200 MKII therefore features several hundred combinations of filters and sound profiles (“harmonic distortions”).

EarMen are confident and consider their products as final, and assign them a long shelf life — SMSL updated their original DO200 within a year so that the user has superseded equipment after a rather short time. Build-wise, the Tradutto is about as good as it gets with its heavy mono-block aluminum chassis and its metal remote. It trumps everything around it (and so do the EarMen Angel and TR-amp).

As to sound, I left the SMSL on its default settings as the differences between the tweaking options were minimal. The DAC sounds very good and probably beats most others in its price category. However, compared to the Tradutto, the SMSL sounds more constrained and boxed in.

The Tradutto sounds richer in the midrange and a bit more visceral, outgoing, and immersive with a deeper stage.

UPDATE: Tradutto with EarMen CH-Amp (2023-02-20)

The Tradutto is designed to harmonize with the EarMen CH-Amp. I tested both for two months from the 2022 Christmas period. The CH-Amp comes with the huge PSU-3 power supply that also powers the Tradutto (and two more devices) – and it improves its sound.

The CH-Amp’s stock remote controls both devices. EarMen’s engineers could keep the size of the enclosures down by choosing a 4.4 mm balanced connection (instead of the cumbersome XLR). The EarMen stack has a footprint barely bigger than a CD — and minimal cable clutter.

The balanced circuit creates a deeper sonic image than the single-ended circuit – apart from being more powerful. Read details on this synergy in my CH-Amp article.

Concluding Remarks

After 2 months of testing [now 1 year including the last update], I conclude that the EarMen Tradutto does what it is supposed to do: generate an analog audio signal of the highest quality. And it promptly delivers. It is sonically marginally ahead of my high-end Marantz SA8005 SACD player and beats all other ES9038Q2M devices I compared it to by a mile.

Apart from its sonic capabilities, the Tradutto is aesthetically pleasing (“Italian design”) and handles well, with high-quality button mechanisms and a rechargeable remote. After testing so many “EarMen”, it crystallizes out that their products are well thought out, therefore relevant for a long time, and of unparalleled build quality.

The Tradutto is another mature product with Auris Audio’s experience behind it. It is small enough to fit on your desk/stereo system, easy to operate, and it looks and sounds great. What else do we want?

Until next time…keep on listening!

Contact us!

Disclaimer

The EarMen Tradutto was supplied by EarMen for my review and I thank them for that. You can purchase it at the EarMen Shop. I thank Gordon Rankin of Wavelength Audio and Paul McGowan of PS Audio for discussion.

Our generic standard disclaimer.

You find an INDEX of our most relevant technical articles HERE.

Gallery

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Cons — None.

Executive Summary

The ddHiFi MFi06 and TC03 are digital cables that are well conducting, well insulated, built rugged and priced right. And they add optical appeal to our devices.

Introduction

ddHiFi have been favourites of our blog for quite some time. They produce very well designed, functional AND optically appealing audio accessories and even earphones.

I have tested their TC25i and TC28i adapters, their Carrying Case C-2020 as well as their Janus E2020A and Janus E2020B earphones. And I purchased a few of their audio adapters. For their accessories, the whole company is attached to our Wall of Excellence.

In this article, I am analyzing the MFi06 and TC03, two USB cables in the broadest sense. Both have a USB-C connector on one and, the MFi06 has a lightning plug on the other, and the TC03 a micro USB plug.

And all USB cables are equal, right? Zeros and ones transfer the sound, the stock cable is as good as the snake oil ones at $$$.

Erm, stop. Not always. The signal carried by the cable is not only zeros and ones (which are actually transmitted as voltage fluctuations), there may be some noise riding along the lines that affects sound quality. Two kinds of noise exist, “Electromagentic Interference” (EMI) and “Radio-Frequency Interference” (RFI).

If the data line is not effectively shielded, nearby electrical components (e.g., switching power supplies, other fluctuating electrical/magnetic fields from computer circuitry) can contribute to EMI that might pollute the USB data.”

Running power and data lines (from a phone or computer) through a single USB cable can cause additional interference and exacerbate the issue. Decrapifiers such as the AudioQuest JitterBug FMJ act as filters to reduce such pollution, but a “good” USB cable adds to this effect, too.

“Good” does not refer to the wire (that’s where the snake oil is) but to the insulation of the power and data lines against each other. In other words, a quality cable does not add anything, it makes sure that nothing is taken away from the signal quality.

A well-known example of the positive effects of insulation is the EarMen Sparrow dongle, that, when operated with a phone, can show strong interference in the shape of intermittent buzzing and clicking (subsides when switching the phone function off). The culprit is the stock cable, and a good third-party cable strongly reduces (but might not completely eliminate) the problem.

One measure of the shielding effectiveness of different cables, the resistance of shield terminations, was investigated in this thread.

Good-quality, well-shielded USB cables do not have to be expensive. USB audio pioneer Gordon Rankin reported very poor $$$ USB cables to me. It is all about the cable’s design, not the price.

ddHiFi are a company that offer a large range of imaginative, well designed, and well built accessories….and even a couple of earphones.

Physical Things

Both cables are 8 cm long. Wire material is high-purity silver-plated OCC copper.

Four strands of separately insulated wire serve as conductor. The inner insulation is teflon. The outer insulation is thermoplastic polyurethane imported from Germany. The aluminum alloy connector are cased in stainless steel to minimize external interference.

Thermoplastic polyurethane (TPU) is any of a class of polyurethane plastics with many properties, including elasticity, transparency, and resistance to oil, grease, and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.

As it appears, these cables are technically sound. They feature good conductors and sufficient internal and external insulation. Sonically, they are indistinguishable from the OEOTG cable and one other brand of which I could not identify (see photo at the bottom of this article).

Haptically, the MFi06 and TC03 are vastly superior over the typical stock cables and the Apple Camera Adapter. The connectors feel rugged, the cable is flexible and the shiny, pearly white TPU is dirt and grease resistant.

And, let’s face it, these cables also add a jewelry effect to our gear. Yep, they don’t just feel good between the fingers, they also look good.

All good so far, only one worry remains: the MFi06’s battery consumption.

MFi06’s Battery Consumption

The MFi06’s lightning connector features a decoding chip which draws current from the phone. The question is how much it contributes to the phone’s battery drain.

I measured battery consumption of different dongles (AudioQuest DragonFly Red, Shanling UA2 single ended, Hidisz S9 Pro single ended) with the Apple Camera Adapter vs. the MFi06. I then repeated these tests with two other Lightning to USB-C cables (OEOTG and an unknown brand) for comparison purposes. All tests were performed under identical conditions. The absolute values are meaningless, what is important are the relative values.

.

Results:

1) The Apple Camera Adapter has by far the lowest power consumption.

2) In my 3 h tests, the 3rd-party MFi chip in the ddHiFi MFi06 cable consumed between 130 and 220 mAh (23%-36%) more (for my specific test parameters) than the one in the Apple Camera Adapter.

3) All three tested 3rd-party cables appear to have the same MFi chip (approx. same battery consumption with Shanling UA2).

4) Battery consumption of the ddHiFi MFi06 cable varies vastly between dongles. It is much lower for the DragonFly Red that consumes by far the least battery with the Apple Camera Adapter.

In summary, the MFi06’s power consumption is acceptable for today’s ever increasing phone battery capacities.

Concluding Remarks

The ddHiFi TC03 and MFi cables do what they are supposed to do: they work as promised while adding appeal to our devices. And they don’t break our piggy banks.

Until next time…keep on listening!

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Disclaimer

THE MFi06 and TC03 cables were supplied by the ddHiFi for my review – and I thank them for that.

Get them from the DD Official Store

Our generic standard disclaimer.

About my measurements.

You find an INDEX of our most relevant technical articles HERE.

Gallery

The post ddHiFi MFi06 and TC03 Digital Cables Review – Unplugged appeared first on Music For The Masses.

Summary

These two single-chip dongles (Bolt: ESS9281 Pro, UA1: ESS9218 Pro) are superficially similar but quite different sounding. The Bolt can be summarized as clean and midrange-focused, the UA1 as bass- and upper-mid-emphasized (more “Harman”). Which is preferred will depend on the transducers they’re paired with as well as the tastes (and budget) of the listener.

For this comparison I listened with JVC HA-FDX1 single DD & Ultimate Ears UE900S quad BA earphones to 16/44.1 FLAC files played via USB Audio Player Pro from a Nokia 4.2 Android phone. The Bolt is currently $110, the UA1 $45. For details on physical things, specs, etc., see Jürgen’s individual reviews here and here.

Helm Bolt

In summary, the Bolt’s tonal/timbral package is warm in the bass and more clean & precise in the upper mids & treble. With some material, these contrasting characters make it seem a bit disconnected top to bottom. While having good weight in the bass, bass & sub-bass can come across as a bit boomy, un-defined (one-note) & soft, particularly with the source-picky JVC HA-FDX1. 

With the UE900S, though, the tendency for softness in the bass goes away and the rounder character benefits the otherwise lean BA bass notes. Treble is extended but not overemphasized; ‘sweet’ would be the old-school audiophool term. The clean nature of the mids and highs gives a very good sense of instrument separation and imaging. 

Overall I found the Bolt to be very good with UE900S – they sound ‘cleaner’ than from other SE dongles I’ve tried them with and the tonal balance benefits their lean-in-the-bass, low-in-the-upper mids, tizzy-up-top character.

Shanling UA1

First impression of the UA1 is of good top-to-bottom integration and good resolution, with dynamics that are more consistent in character across the range. The top end is well defined but well controlled, not splashy. There’s good bass: with HA-FDX1, sub-bass definition & extension are certainly there, both better than with the Bolt.

However, the UA1’s upper mids are a bit nasal/honky/shouty, particularly with the FDX1s which are a bit elevated there. With those ‘phones the UA1 is more balanced at the extremes than the Helm, but a bit tonally and timbrally off in the mids.

With the UE900S, the bass remains good but the upper mids & treble come off as overexaggerated, sibilant and a bit hashy compared to the Bolt. Cable games might help this, but I’m not optimistic.

Matching

Comparing these two dongles with these two earphones shows the importance of synergy: the Helm is a much better driver for the UE900S than the UA1 is. The sweeter treble of the Helm helps balance the 900s’ overdone highs, and although the 900s’ dipped upper mids would ostensibly seem a better fit with the UA1’s tendency for shoutiness, they actually seem cleaner and better balanced there with the Bolt. The Bolt’s softer, rounder bass isn’t a problem, as it makes the 900s sound a bit more natural. With the FDX1s, however, the Bolt gives a very soft sub-bass compared to the UA1. Conversely, while the bass of the UA1 matches the FDX1s better, its Harmanish tonality does their upper mids no favours.

It’s tempting to attribute differences in the bass, in particular, to differences in output power.  According to Audio Science Review’s measurements, the Bolt clips at 60 mW into 32 Ohms and about 56 mW into 16 Ohms (HA-FDX1 impedance). Shanling specifies the UA1’s power output as 80 mW into 32 Ohms. The difference between the two dongles isn’t large and I doubt it tells the whole story, because the DragonFly Black is very anemic at 18 mW into 32 Ohms yet the HA-FDX1s don’t lose the definition in the sub-bass when fed from the Black to the extent that they do from the Bolt (warmth of the Black’s signature aside). I conclude that with these dongles, transducer synergy is ‘a thing’.

Other Quick Comparisons

Audioquest Dragonfly Black: pleasant warm emphasis (more than the Bolt), but everything softened and resolution lost (blurred, even a bit scratchy or fuzzy in the highs) compared to the Bolt and UA1. Would view as smooth if not by comparison. Smooth (but not soft) in the bass & lower mids; relaxing with the FDX1s.

Apple dongle: softer than DragonFly Black throughout, not as warm though.

EarMen Sparrow single-ended output: Bolt has better macrodynamics, more and cleaner treble, and is more resolving. UA1 has better note definition (resolution). Sparrow balanced output bests both in dynamics & resolution.

Ifi iDSD Nano BL SE (unfair comparison because: not a dongle, battery powered, 200 mW @ 16 Ohms, significantly more expensive; but included here for completeness because I compared it): darker tonal balance, timbre across the range more integrated, balance between dynamic swings & transient speed more even (maybe a little on the slow side compared to the ESS sound, but to me more natural because of that; organic). S-Balanced is a notable step up over SE in ‘cleanliness’.

Conclusion

It was interesting to hear such different sonic characters from these superficially similar dongles. I hesitate to recommend one over the other as transducer synergy, based on my admittedly limited trials, seems to be important. In general terms, I’d suggest that the Shanling UA1 might be the better match if you have ‘phones that are known to be demanding in the bass; and the Helm Bolt might be the better if you have ‘phones you find at the edge of your tolerance in the upper mids.

Disclaimer

These two dongles were sent to Jürgen for review by Helm Audio and Shanling, who we thank for the opportunity to hear them.

Our generic standard disclaimer.

Contact us!

You find an INDEX of our most relevant technical articles HERE.

The post Helm Bolt vs Shanling UA1 USB Dongle DAC/Amps Review – Freedom of Choice appeared first on Music For The Masses.

Gear of the Year: 2021 marks the blog’s third year and the second with 8 contributors. We collectively published almost 200 articles, mainly product reviews, but also technical information. Apart from receiving review units from manufacturers and sellers, we also purchased a lot…and we borrowed from audiophile friends and colleagues.

We are a heterogeneous bunch not pressed into templates by commercialism. Each of us enjoys maximum freedom. None of us gets paid. And it is this variety that makes this blog interesting. Two of us, Baskingshark and Kazi, have been drafted to also write for Headphonesty, which gives them more exposure and also access to very interesting gear.

Our main focus has traditionally been on earphones – we have reviewed almost 300 – but particularly DACs and amps also caught our attention this year.

As at the end of the previous years, we list our our personal favourites of 2021 – the portable audio we personally enjoyed most. There are no rules, we just tell you what we like. After all, the gear we use most is our best. And we attached some of this gear to our newly created Wall of Excellence, which averages all our opinions.

Enjoy this read and we wish you a happy and successful 2023!

We thank

Most of our reviews would have not been possible without our 2021 cooperating partners. We thank:

ADV, Allo, Apos Audio, Astell & Kern, AudioQuest, Azla, Blon, BQEYZ, Burson Audio, Campfire Audio, Cayin, CCA, Dekoni, Dunu, ddHiFi, EarMen, Easy Earphones, Fiil, Helm Audio, Hidizs, HifiGo, ifi Audio, IKKO Audio, KBEAR/TRI Audio, Keephifi, Khadas, Knowledge Zenith, Meze, Moondrop, Musicteck, NiceHCK, OneOdio, Penon Official Store, Pergear, Sennheiser, Shanling, Shenzhenaudio, Smabat, Snake Oil Sound, SpinFit, Tempotec, Tin Hifi, TRN Official Store, Unique Melody, Venture Electronics, Whizzer Official Store, Yaotiger Hifi Audio Store. Don’tkillusifweforgotyoujustsendusanotandwefixit. 

For the companies: you can check for your products/yourself in the search field on the right-hand side.

We also thank the private sources that supplied us with loaners.

And here we go…that’s what we enjoyed in 2021…

Alberto Pittaluga…Bologna, ITALY

I’ve come accross quite a few interesting pieces of gear in 2021, mixed / hidden amongst piles of shameful crap. Nothing new, is it ? I’ll try to make a succint list of the most significant stuff I auditioned here. Most of these devices are also now part of my operative audio gear.

IEMS

Dunu ZEN (discountinued, was $ 699,00) : beyond spectacular microdynamics, resolution, layering and technicalities in general. A masterpiece.

iBasso IT07 ($899) : the sole real “direct upgrade” to Ikko OH10 I encountered as of yet. Same presentation, twice the refinement, at more than four times the price.

Oriolus Isabellae ($ 599) : somewhat “more V-shaped” alternative to Zen, delivering very similar technical prowess.

Ikko OH1S ($143) : a potential new join into the our World of Excellence roster as a sub-200$ allrounder

Headphones

Final Sonorous-II  (€ 300) : arguably by far the best neutral-tuned closebacks in their price category, staging and imaging easily compete with many lower tier openback alternatives.

Sennheiser HD600 (€ 310) : not a novelty for anybody but me, I’m sure. Quite simply: I got my first HD600 pair in 2021 and that’s why I’m listing it here. I presume no one needs a description. Do you?

Earbuds

Rose Mojito ($259) : superbly neutral-tuned high end earbuds with strong bilateral extention, beyond spectacular mids and vivid, refined highs in a fully holographic stage, with plenty of resolution and dynamics.

K’s Earphone Bell-LBS (€ 59,25) : mid centric buds delivering superbly organic vocals – both male and female – and very good trebles

K’s Earphone K300 (€ 28,59) : unreal sub-bass extension for an earbud, they deliver a very nice V shaped presentation while drawing an incredibly sizeable 3D stage. Presentation remembers a bit Ikko OH10, but in earbud form.

DAC/AMPs

Ifi Micro iDSD Signature (€ 749) : top sub-$1K mobile dac-amp. Very high quality DAC reconstruction paired with superbly transparent amping stage with power to spare for the most demanding planars and power deflation options to optimise low impedance IEM biasing. Truly a full step ahead of the competitors’ pack.

DAPs

Cowon Plenue 2 MK-I (€ 835) : hopped on this recently when I found a impossible to turndown openbox deal. Starting from my direct experience proving that there’s pretty much no game between proprietary-OS DAPs vs commercial-OS (read Android) DAPs, the former being in by far better position to achieve superior output sound quality, Plenue 2 represents a great companion to my QP1R offering a different / alternative optimal pairing opportunity for a few of my preferred IEM drivers.

DAC/AMP Dongles

This year’s experience proved to me that exclusively higher-tier (and price) dongles are able to deliver sound qualities worth the comparison with battery-equipped alternatives. Simply put: pretty much nothing until an Apogee Groove ($200) is really worth the price difference compared to the super-cheap Apple Dongle ($9), and even on the Groove some caveats apply (power needs, amp stage competibility).  That said, I really had pick one device “in the midfield” I’d pick the :

Questyle M12 ($139,99): while still not worth an inclusion on our Wall of Excellence, yet M12 runs circles around pretty much all similar or lower priced competitors I assessed in terms of extension, note weight, clarity and technicalities.

Biodegraded…Vancouver, CANADA

Doesn’t have anything to report this year.

Durwood…Chicago, USA

Shozy Form 1.4 has still been my go to earphone due to it’s warm inviting nature, great technical abilities and it feels great in my ears.

7Hz Timeless is another good buy late in the year for me, it’s a little more sub-bass plus analytical counterpart to the Shozy that has nudged the BQEYZ Spring 2 out of the way. A more detailed review is coming.

I rediscovered the Senfer UES for a quick throw around set, was hoping the Senfer DT9 was a slight improvement, but alas the Senfer UES sticks around instead. Sony MH755 is also perfect for quick on the go usage where I don’t need the universal fit in-ears.

Tempotec impressed me enough to consider the Sonata E35 for when good phone DAP’s are finally dead. Other than that, dongles are not my thing, and I have issues with some of Sony’s GUI decisions on the NW-A55 mainly related to playlist creation and long text support.

Lastly, the Questyle CMA Twelve would be an awesome DAC/amp combo to have, but my needs are more mobile. Perhaps when life slows down, but there are other bucket list items such as the Burson Playmate 2, RebelAmp, the Ruebert Neve RNHP, or RME ADI-2 that look interesting as well. Maybe someone will loan me one in 2022?

Jürgen Kraus…Calgary, CANADA

Earphones have traditionally been our main trade and there’s not many that stuck with me this year. First and foremost, I was impressed by the immersive and engaging sound of the single DD Dunu Zen that further excel in microdynamics. They are still very popular within our team.

Moondrop finally got it right with their tuning in the smooth and very pleasant sounding Moondrop KATO single dynamic driver. This model is generally well received. The JVC HA-FDX1 are still my standard iems for equipment testing, and an honourable mention goes to the Unique Melody 3DT for the clean implementation of 3 (!) dynamic drivers.

Another iem that fascinated me is the Japanese Final E5000. On the market since 2018, and very source demanding, this iem can produce a bass texture beyond belief. I have become a bit of a Final fanboy, as their products are unpretentious and natural sounding…and they fit my ears very well. I also purchased the Final E1000, E3000, and A3000…which get a lot of usage. No surprise that our Wall of Excellence is decorated like a Christmas tree by quite a few of these Japanese earphones and headphones.

Expanding my horizon into other devices, the Sony NW-A55 is a user-friendly digital audio player with great sonic characteristics and signature-altering 3rd party firmware options. But, most of all, it updates its music library within a minute or two. For the ultimate portable enjoyment, I discovered the Questyle QP1R dap...sounds simply amazing with the Final E5000. Found the dap on Canuck Audio Mart.

Dongles, battery-less headphone DAC/amps that turn any cheap phone into a decent music player, were big in 2021. Around since 2016, the market caught on to these devices. But out of the mass of dongles tested, the 2019 AudioQuest DragonFly Cobalt was the most musical to my ears. I also like the AudioQuest DragonFly Red and the EarMen Eagle (replacing the EarMen Sparrow which I sent to Biodegraded). For earphone testing (and bigger cans), I still use the excellent Earstudio HUD100.

For my full-sized headphone needs with my notebook, I discovered the powerful Apogee Groove, a current-hungry dongle DAC/amp that has been around since 2015. I am even portable around the house. As to headphones themselves, I am still happy with the Sennheiser HD 600 and HD 25, but also with the Koss Porta Pro.

For my desktop setup, I identified the EarMen Tradutto as being a fantastic DAC in combination with the Burson Funk amp. Currently testing the Tradutto with my big stereo system.

In summary, I learnt a lot in 2021…

My Take Home this Year

• The latest is barely the greatest…many old brooms get better into the corners
• Influencers are not always right (…to say it nicely)
• Measurements are overrated
• Timbre (degree of naturalness of sound) is underrated
• Source is super important and also underrated
• Group pressure through hype may become a sobering experience
• That groomed YouTube stuff is boring

Kazi Mahbub Mutakabbir…Munich, GERMANY

This year was very educational for me when it came to audiophilia. I got the chance to try out truly summit-fi setups and realized how good a system can sound. This also resulted in a sense of yearning where you keep comparing the gears you own with the ones you cannot own, at least not yet. Nonetheless, without further ado.

Headphones: The one headphone that has stuck with me throughout the year is the Hifiman Susvara. They won’t flatter anyone with the build quality but when paired with the right amp they sound astonishing. One of the most natural sounding headphones out there with exceptional timbre. A must listen.

Honorable mention goes to the Final D8000. Supreme bass that’s pretty much unmatched. On the budget side, I really liked the Final Sonorous-III. They are underrated and under-appreciated.

IEMs: When it comes to in-ear monitors, I have a hard time picking any single one of them as all of them fall short in one area or another. Nonetheless, the one IEM I’ve used the most throughout the year is the Dunu Zen. There is something truly addicting about their sound that makes me come back to them time and again.

However, the Zen is not the best IEM that I have heard throughout the year. That would probably be the Sony IER-Z1R or the 64Audio U12t. In the relatively budget realm, the 7Hz Timeless took me by surprise with their planar speed and excellent bass slam.

Source: Instead of going with separate sections for amps, DACs and such, I will just consolidate them into one.

Best desktop amp I’ve tried: Accuphase E380. One of those rare speaker amps that sound great with headphones.

Best portable amp I’ve tried: Cayin C9. It is the only review loaner in the past year that I have wanted to buy with my own money. I probably will, soon, budget permitting.

Best DAP: Lotoo PAW 6000, even though it can’t power difficult loads.

Best dongle: L&P W2. The only dongle that I found to be good enough to replace some DAPs.

Best DAC: Holo May L2. The price is extremely high but so is the sound quality. Exceptionally natural and neutral tuning. Another must listen.

And that’s a wrap. Have a great Christmas, and see you on the other side!

KopiOkaya…SINGAPORE

Too many lists…I focus on eartips…

Best EARTIPS of 2021

Most versatile eartips: SpinFit CP-100+
Best budget eartips: Audiosense S400
Best eartips for bass: FAudio “Instrument” Premium Silicone Earphone Tips
Best eartips for vocal: Azla SednaEarFit Crystal (Standard)
Best eartips for treble: BGVP S01
Best eartips for soundstage: Whizzer Easytips SS20
Most comfortable eartips: EarrBond New Hybrid Design

Loomis Johnson…Chicago, USA

Gear of the Year (and other Favorite Things)

SMSL SU-9 DAC/Preamp—one of those pieces that makes you seriously question why anyone would spend more. A seriously good DAC which is even better as digital preamp.

Hidisz S3 Pro DAC/Dongle—lacks the juice to power challenging loads, but has an uncanny knack for enlivening and improving more efficient phones. Very refined, with impeccable bass control.

Cambridge Melomania TWS—ancient by TWS standards, and its rivals have more features and tech, but this may still be the best-sounding TWS you can buy.

Shozy Rouge IEM—like a really hot girl you get smitten by the beauty before you even delve into the substance. Properly driven, however, these sound just as good as they look, with estimable staging and clarity.

The Beatles, “Get Back” Documentary—as probably the only person on earth who hasn’t seen Lord of the Rings I was gobsmacked by how brilliant this film looked and sounded. The real surprise for me, however, was how natural  a musician John was—unburdened by technique, but soulful and  exploratory.  Poor George invokes your pity—a good writer forced to compete with two great ones– while Ringo wins the award for Best Attitude.

Bob Dylan, “Desolation Row”—I always found the lyrics impenetrable and a bit sophomoric, but the Spanish-influenced lead guitar part is incredible, with scarcely a phrase repeated throughout the full 11 minutes. I’d always assumed it was Mike Bloomfield, but it’s actually the harmonica virtuoso Charlie McCoy, who also plays the trumpet part of “Rainy Day Women”.

Reds, Pinks and Purples, “Uncommon Weather” In hope of finding something genuinely fresh I dutifully listened to the most-touted 2021 releases before fixating on this one, which (predictably) sounds exactly like 80s Flying Nun and Sarah bands.

And This Was The Previous Year:

The post Gear Of The Year 2021 – Our Personal Favourites appeared first on Music For The Masses.

Cons — Interference could be an issue with certain mobile phones or signals; SE output takes such a hit in dynamics and resolution vs balanced that it might be a waste for many users; power consumption via balanced is likely high.

Summary

The EarMen Sparrow is a flexible (balanced or single-ended), powerful USB DAC/amp dongle with great sound quality, being particularly dynamic from its balanced output. However, it can be susceptible to interference when run from a mobile phone.

Sonics and Comparisons

I listened to the EarMen as part of a comparison of a few USB DAC/amp dongles old and new. Listening to all was mainly done with the Drop+JVC HA-FDX1 single dynamic-driver IEMs using the Mee Audio MMCX balanced cable (SPC), with a 2.5 bal. to 3.5 SE adapter where necessary to minimize possible cable differences. Being an Android user, I sent audio (mostly 16/44.1 FLAC files) to the Sparrow with USB Audio Player Pro.

Balanced: From the balanced output, performance is impressive: macrodynamics, note definition & weight, instrument separation, and transient resolution are all excellent, making for a very ‘technical’ package. Tonal balance is good too, no particular part of the range seeming over- or under-emphasized.

While I liked it, the dynamic and fast presentation from the balanced output might become fatiguing after a while with revealing and dynamic transducers like the JVCs and especially with very ‘technical’ multi-balanced-armature IEMs. Matching with smoother ‘phones, or switching to the SE output, might be preferable for long listening sessions.

Single-ended: There’s a notable hit in macrodynamics and low-level resolution from the 3.5mm SE output vs balanced, and note definition, particularly in the bass, is weaker, leading to a much more relaxed presentation.

As mentioned above, depending on the transducers the EarMen Sparrow is paired with, this might not be a bad thing. The contrast however is very pronounced, especially when comparing with others: The Tempotec Sonata BHD, for example – a balanced-only unit – is itself pretty revealing but is notably less dynamic than the Sparrow’s balanced output and notably more dynamic than it’s SE output. And the latter is more relaxed than the single-ended Shanling UA1, and – except notably in the bass – than the single-ended Helm Bolt (which uses the same ES9281Pro SoC as the EarMen Sparrow).

Non-Sound Stuff

Here’s what might be a deal-breaker for some: when playing from the balanced output, the EarMen Sparrow can pick up interference when it’s close to a phone. This has been discussed on internet forums, and EarMen to their credit tried to address it by replacing the original cable with a longer, better shielded one.

I replaced the original with another that was reported to help, the OEAudio OEOTG, which improved the issue but didn’t completely solve it. If you can keep the dongle away from your phone, if you only use it in airplane mode, or if your phone/carrier/local signal doesn’t give you this problem (Jürgen tells me he didn’t experience it with his iPhone SE), great – but it might be a lottery.

For me (Nokia 4.2) it’s much reduced (or absent) from the SE output, but present enough to be annoying at listening levels from balanced when everything’s jumbled together in a pocket.

Minor considerations: unlike with other dongles, sometimes the EarMen Sparrow doesn’t play right away from UAPP when hot-swapped in after another dongle, requiring a re-boot of the player. This doesn’t happen every time, though, and I suspect a recent UAPP update might have cured the problem entirely; I haven’t seen it in the last couple of weeks.

Also, the EarMen Sparrow gets very warm in balanced mode – you can tell it’s putting out some power! This is good, but will come with a pretty high battery drain. Jürgen found the drain when using SE to be in the higher half of his tested units; be aware that balanced use will drain your battery faster still.

More Comparisons & Conclusion

The most obvious comparison among the units I have here – because it’s the only other one with a balanced output – is the dual-CS43131 Tempotec Sonata BHD. Compared to the EarMen Sparrow this has tonal emphasis in the upper mids, a splashier/hashier treble, a more rounded bass, and transients which apart from in the bass are similar in speed to the Sparrow but lesser in weight. However, the Sonata BHD is currently under 1/3 the price of the Sparrow.

The Earstudio HUD100 Mk2 (currently $120), a favorite of Jürgen’s which I haven’t heard, could make for an interesting comparison because although being single-ended, has two outputs, one with high power. Comparisons with other, non-balanced units should be seen in terms of price – and not having heard similarly priced SE units, I can’t usefully comment. 

Overall, I’m impressed with the EarMen Sparrow. The flexibility and differences in sound signature offered by the choice of outputs, and the absolute performance of the balanced output, make it a great contender in the dongle space. The interference issue however, is a serious one.

Contact us!

Disclaimer

This is the same unit reviewed by Jürgen here, which was supplied to him by EarMen upon request.

Our generic standard disclaimer.

You find an INDEX of our most relevant technical articles HERE.

The post EarMen Sparrow Dongle DAC/Amp – Brief Second Opinion appeared first on Music For The Masses.

21-11-21 Jürgen

Our Facebook Group https://www.facebook.com/groups/audioreviews finally cleared 9,800 members. It was established on 1 Jan 2020 and its growth has been stalling lately. Will we have 10,000 members by Christmas?

21-11-19 Jürgen

More drama ahead? I published me take on the $5 VE Monk Pro earbud. They finally got the impedance down from 64 ohm to 32 ohm to present a truly “portable” earbud. I think my writeup is reasonably entertaining.

21-11-19 Jürgen

We have been playing with Google Adsense in order to try out whether Google prefers their clients in their listings. We put the settings on “autopilot”…after 203 days, this angry guys showed up. Sign of things to come? We’ll monitor this.

21-11-17 Jürgen

This “drama” over this Facebook post generated quite some outrage. What some people did not understand was that I don’t see a relationship between the hype and the quality of this iem. If you read between the lines, you’ll see my subtle criticism of peer pressure and compulsive buying triggered by pied pipers. 8000 views: goal achieved :).

21-11-17 Jürgen

Durwood posts his review of the $1500 Questyle CMA Twelve DAC/amp combo…endgame for many.

21-11-15 Jürgen

Loomis publishes his Sennheiser CX 400BT review.

21-11-13 Jürgen

Baskingshark’s IKKO Zerda ITM1 review now published. I see some KZ reviews being presently worked on. In the immediate line-up are a Sennheiser TWS and a premium Questyle amp.

21-11-13 Kazi

Received the Fearless Barcelona recently for review. It is the cheapest Fearless IEM till now and the design belies the price tag. I love how they’ve designed the face-plate here.

Sadly, they sound horrible. Not recommended at all. Too much bass, highly recessed mids, zero treble extension. Get something else this holiday.

21-11-12 Alberto

Yesterday I received my new/old Cowon Plenue 2 and of course the very first impression is imprinted over my experience with QP1R. At first listen the P2 on its balanced output is quite nice, nicely extended and with a very good note weight. While less clean / revealing / detailed compared to the QP1R (whose single ended output is a quite good proof of why balanced is more a marketing name for decent quality output than anything else) on the other hand it offers a huge host of sound finetuning options, commencing from selectable reconstruction filters, to a very good “tweakable” graphical EQ module (not a true PEQ but close) and some further DSPs. Connectivity options are null / nil / zero – like QP1R. There’s not even BT – and that’s perfectly fine

21-11-12 Jürgen

Singles day is over…as the name implies, I didn’t buy a single thing. Our blog stats are surprising: 70% of our traffic stems from Google searches, and only 15% from Facebook. It is therefore not worth posting across FB groups…which is uncool anyway.

21-11-11 Jürgen

Today is 11/11 Asian Singles day. Not many exciting deals as far as I can see…but our blog experiences lots of views. In the meantime we published reviews of the FIIL CC2 and Oneodio Pro C reviews.

21-11-07 Jürgen

Burson Funk review out now. A fantastic headphone amp it is.

21-11-04 Jürgen

Working on the Burson Funk amp to hit the weekend deadline. Fantastic, powerful amp that works for headphones and speakers alike.

21-11-03 Jürgen

Published the Tin Hifi T2 EVO review. Kazi and I ordered a Final A3000 as found on our Wall of Excellence.

21-11-02 Jürgen

Re-dressed the blog’s right sidebar and added useful information. Meet your 8 authors, Wall of Excellence etc. Just look to the right.

21-11-01 Jürgen

Alberto’s iBasso IT04 review published. 283 iem reviews altogether now. Solved a caching problem, which affected our Google indexing. Thanks to the support of rankmath.com SEO plugin.

21-10-31 Jürgen

Finally got the Shanling UA1 review published. It is currently in Biodegraded’s hands for a 2nd review. Will have to finish the NiceHCK T2 EVO next week, and work on the Astell & Kern PEE51 dongle.

21-10-30 Alberto

Got my Hip Dac 2 review loaner unit in yesterday. First thing I noticed it came equipped with firmware 7.3 installed. The odd part is that on IFI’s website the 7.3 firmware is not listed under Hip Dac 2’s eligible downloads. Which means I could not recupe any “release info” about what’s different in 7.3 vs 7.2

While I was there, I also checked under Micro iDSD Signature’s section, and apparently firmware version 7.x has been removed from there too. Odd, at least. I put a question into IFI to get more info.

21-10-29 Jürgen

Published my Venture Electronics BIE Pro review on the blog. Submitted link to VE Clan Facebook group, where it got stuck in censorship, but was eventually posted after approval. That was only intermittent, I think I was tacitly expelled from that group after mentioning censorship. Be prepared that VE Clan Facebook group is manipulative as it presents cherry-picked information.

On another note, Loomis Johnson submitted his review of the Sennheiser CX-400BT True Wireless Earphones for publication.

21-10-28 Kazi

Received KZ ZEX. Their naming convention is making me go bad. Graphed it and labeled the graph wrong because these names all sound similar (ZAX/ZEX/ZSX). Either way, not too impressed with the sound. Kinda peaky in the mid-treble. Graphs show that as well.

21-10-27 Jürgen

Behind with some reviews, e.g. Unique Melody 3DT and Tin Hifi T2 Evo.

21-10-26 Jürgen

Blog received a few more tweaks, including a new site map.

21-10-25 Jürgen’s 10 Day Roundup

In the last 2 weeks, we published reviews of 2 totally underrated Final Audio headphones (Sonorous II+III) including some update earpads.

We identified some good TWS iems for the office in the Elevoc Clear.

We further think the Moondrop Kato is a winner (but need a second set for our European crew).

And we had a couple of second opinions of the GeekWold GK10, Tforce Yuan Li, SeeAudio Bravery, and Tanchjim Tanya.

We currently offer 281 earphone reviews.

21-10-25 Kazi

Received the iFi Hip DAC2 today, and the copper colorway will surely steal some glances. The sound isn’t changed much from the original Hip DAC (if at all) but it didn’t need to since the OG was one of the best DAC/Amps out there under $200. Full review in the works.

21-10-25 Jürgen

Worked on search engine optimization “SEO” all weekend after some trouble with Google. Also subscribed to webmaster tools of Bing and Yandex search engines. You can analyze the SEO of your own site here: https://rankmath.com/tools/seo-analyzer/

21-10-24 Kazi

Slow weekend, nice weather. Went out mostly to enjoy the fall colors. Also did some random photoshoot for the upcoming reviews. Also received the VE Monk SM recently. Not a fan. Shrill, sharp sound and technicalities are middling even for the $20 price bracket. At least it looks and feels nice in hand.

In other news, A&K released the SR25 mk. 2. Not a fan of the design at all. The tilted makes no usability sense. Also it’s basically the original SR25 with just a 4.4mm jack added. Meh.

21-10-23 Jürgen

Our blog has currently problems with Google indexing. I re-created the sitemaps. It would help if you linked to it from your site. Thanks.

21-10-23 Jürgen

The ongoing power crisis in China has led to increased operating costs as well as to price hikes of raw materials. Expect delays and price increases for your Christmas shopping.

Have not heard of 11/11 deals this year…strange.

21-10-22 Jürgen

Coming next on the blog (tonight my time) is Baskingshark’s review of the SeeAudio Bravery. We have a few more ready ones such as a tech article on “System on Chip” (SoC), that is dac and amp on the same chip. Another tech post will be an elaboration on the 1/8 rule on the example of the Apogee Groove.

Alberto will be offering reviews of the iBasso IT04, the Kinera Leyding earphone cable, and the Tanchjim Tanya in the very near future. These are ready. He is still working on a couple of Fearless models among others.

Also almost ready to go are reviews of the Shanling UA1 dongle, the VE Bonus Pro iem, and the VE Monk Go.

21-10-21 Biodegraded

Behind in evaluating various dongles sent by Jürgen for second opinions: Helm Bolt, Shanling UA 1, Earmen Sparrow, Tempotec Sonata BHD. So far, I’m surprised by the contrast between the Bolt and UA 1 (both use the same ESS DAC/Amp chip but yes, they sound a lot different) and by the bal vs SE contrast from the Sparrow. Comparisons will be made to the Audioquest DragonFly Black and ifi nano iDSD Black Label.

I’m also considering a winter project building this Pass Labs class A solid-state headphone amp to complement my tube hybrid and little USB- or battery-powered desktop/portable things. Much swearing will no doubt ensue. Right now though, have to clean the scratchies from the volume pot of an integrated amp that needs to be moved on.

2021-10-21 Kazi

Have had quite a hectic October, so couldn’t manage to publish anything. However, look forward to the “Review Extravaganza” over the coming two weeks or so. At least four articles are in the works and shall be published withing quick succession including:

• FIIL CC2 (a pretty good TWS)
• Moondrop Quarks
• Campfire Audio Holocene
• Campfire Audio Honeydew
• Final A4000
• Shanling Q1
• Cayin Fantasy

And just to close out, one of the photos I shot today (I think it came out pretty good). See you on the other side.

2021-10-21 Jürgen

Sitting currently on review units of Burson Funk amp and two Allo power supplies that may take some time. Almost ready is a review of the Unique Melody 3DT iem whereas the IKKO OH10 still needs some work. Overdue are reviews of several VE Electronics items as well as some ddHiFi accessories.

That famous Hidizs S9 Pro Copper edition dongle (limited to 500 copies) has been on its way from Calgary to Bologna for a good week now. Let’s see how fast Air Mail is.

Currently looking for a second Moondrop Kato review unit for our European chapter. After all, a single opinion is not sufficient for an item to qualify for our Wall of Excellence.

2021-10-21 Jürgen

This page was established to report our progress (but also some observations and opinions) within audioreviews.org. All our authors with WordPress accounts have access.

2021-10-20 Jürgen

Android Brick alas audioreviews.news is using our good name to attract traffic to his fake reviews. This may be legally correct but it is not ethical. He was shamed and left our Facebook group.

Beware of imitations!

This is https://www.audioreviews.org/news/

No marketing!

No sugarcoating!

Just genuine analyses!

The post Our News appeared first on Music For The Masses.

A device gets attached to this Wall of Excellence when based on our private and of course subjective experience it performs so well within its technical and price category as to even discourage considering homologous alternatives.

If it ain’t here, WE don’t want it!

Please note that our WoE will not be limited to devices we actually published a review of. Nonetheless, all WoE devices have for long time been or still are part of our operative gear.

We start small and plan to expand our wall according to merit.

This Site is being consistently updated…please bookmark it and keep checking back!

LATEST ADDITIONS: Oladance OWS Pro wearables | Sennheiser IE 900.

In-Ear Monitors, Earbuds & Wearables

Past excellences, now discontinued or superseded

Headphones

Digital Audio Players (“DAPs”)

Past excellences, now discontinued or superseded

Desktop Amplifiers

Desktop DACs

Desktop Integrated Headphone DAC/AMPs

Portable Headphone Amplifiers

Portable Integrated Headphone DAC/AMPs

Past excellences, now discontinued or superseded

Headphone DAC/AMP “Dongles”

Dongles are little DAC/amps without battery that are powered by their source device.

Past excellences, now discontinued or superseded

Accessories

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What Is…

“Dongle” is the casual term for a tiny portable USB DAC/amp that is sourced by its host device (phone/tablet, dap, computer). It is derived from software keys of this kind of shape.

Early Steps

The idea of a small, portable DAC/amp in the shape of a USB “thumb drive” goes back to a conversation between some industry reps and consulting audio engineer Gordon Rankin at the Rocky Mountain Audio Fest 2010. Gordon had been designing DACs since the early 2000s and had lots of experience with asynchronous code, needed to minimize timing errors (“jitter”) that compromise an USB-audio signal. You find details of the dongle inception in my AudioQuest Dragonfly Red review.

The device was designed for larger headphones and with iPhone portability in mind – but iPhone limits the current draw to 100 mA to protect battery life. One of the challenges was therefore to minimize current draw, which, unfortunately, limits performance as we will see below.

In 2015, Apogee released their famous “Groove“, a very powerful and large device that draws 340 mA, and it has an output impedance of 20 Ω. This is not a dongle sensu stricto as it only works with computers and mainly with high-impedance headphones (with some exceptions).

It took until 2016 until the first USB devices had a current draw small enough to work with iPhone: AudioQuest’s DragonFly Black v.1.5 and DragonFly Red. Timing was right as Apple removed the headphone jack in the same year, as of iPhone 7. And most Android phones followed suit.

Apple offers a decent low-priced dongle of their own that is good value but is limited in power. My review of the “Apple Audio Adapter” is one of the evergreens of our blog.

The DragonFlys have an output impedance of <1 Ω, which makes them work well with headphones and iems alike. They do not have any physical controls and are operated through their host devices.

DragonFlys Black and Red still lead the pack in terms of low-current drain (if exempting the Apple Audio Adapter). You find drain comparisons between some models here.

Most dongles need a Windows driver, but all of them are plug’n’play with phones , tablets, and Apple computers.

From Thumb Drive to Dongle

The very first external iPhone DAC/amp, the Apple Audio Adapter, was physically a true dongle, and a seamless headphone/earphone cable extension.

The first non-Apple devices (the AudioQuest DragonFlys) had/have a USB-A plug and resemble a thumb drive. The USB-A pug works seamlessly with the Apple camera adapter and any computer. Android phones had no preference with developers as they had no standardized socket at the time and still do not produce music bit perfect (they resample a 44.1 kHz signal to 48 kHz).

Most of the Android devices had micro-USB ports until the USB-C port (finalized in 2014) was slowly spreading starting in 2015. Today, there are more than 100 dongles on the market, most of them featuring a USB-C port. And so do the latest Macs.

DAC/amp and music/power source are connected by a short USB-C to USB-C cable, most of them coming with an additional USB-A adapter. None of these has a USB-C plug, probably for the purpose of stability (the USB-C plug could break off easily). But the need for this additional cable turned the original thumb-drive into a true “dongle”.

Some devices have a fixed USB-C cable, and iPhone users are horrified by the snakes they produce when connected to the Apple camera adapter. Third-party USB-C to lightning cables may come in handy, but their MFI chip draws “healthy” additional current.

Technology – What makes a Dongle’s Sound?

There are many variables that contribute to the sound, such as the dac implementation which includes software coding and filtering, the analog output stage, and the amp design and implementation.

Therefore, same dac chip does not mean same sound in different devices. In my case, The Khadas Tone2 Pro, EarMen TR-amp, Hizids S9 Pro, Shanling UA2, and DragonFly Cobalt feature the ESS ES9038Q2M dac chip – and they do not sound even remotely close.

So it does not surprise that some high-end dacs and some budget dongles have the same dac chip, which are a relatively cheap ingredient. Some high-end manufacturers therefore do not disclose the dac-chip used in their specifications.

Characteristic Chip Sound?

Since buyers cannot audition dongles in most cases, many buying decisions are based on chip brand and model. Descriptions of characteristic sonic signatures based on chips by certain manufacturers echo through the blogosphere. Co-audioreviewer KopiOkaya summarizes them for us:

1. ESS Sabre (US/China) – neutral to neutral-cool, analytical, detailed, fast punchy bass, great dynamics, impressive soundstage and separation. Modern sound. “ESS glare”.

2. AKM (Japan) – neutral to neutral-warm, vocal-centric, laid-back/mellow, bodied. Can sound forward on some models. Some dislike the “AKM Velvet Sound” claiming that it sounds flat and lifeless. Modern sound with a classic twist.

3. Burr Brown/Texas Instruments (US): Natural tone with very good music texture. Generally sound neutral to neutral-warm. Their earlier multibit models (for example: PCM1704UK, PCM63P, etc.) sound extremely musical and dynamic at the same time. Can sound forward with average soundstage on some models. Traditional analog “solid-state” sound.

4. Cirrus-Logic/Wolfson (US/India/UK) – A staple of Apple products since their first generation iPod. Natural tone with warmth and body. Vocal-centric with good dynamics and music texture. Earlier Wolfson DACs can sound wooly and lacks resolution. Traditional analog “tube” sound.

As KopiOkaya points out to me, this does not consider the jitter-reduction and error-correction clock, LPF/IV stages, and power supply.

DragonFly creator (and therefore “dongle inventor”) Gordon Rankin told me that these four points are “totally off“, and “you could not classify these brands that way. There is too many factors to pigeon hole a sound for any DAC: power, filters, analog design, digital design, software etc.”. And that’s what I experienced with my devices featuring the ESS ES9038Q2M dac chip.

According to Gordon, “the difference [for example] between DragonFly Red and Cobalt is more than the dac chip. Power, filtering and new controller make up a big part of the difference in sound. More so than the dac chip itself“.

So, maybe the four points above apply to poorly implement dac chips?

Technical Limitations and Realistic Expectations

The dongle DAC/amps are limited by their (portable) source – and by Ohm’s law. Transducers are moved by current. Such devices that are optimized for low current drain/little battery consumption do not work well with low impedance/low sensitivity iems/headphones, as such require a lot of current.

Dongles optimized for low-current draw lack certain features: for example high-speed USB and balanced circuits that would add to the current draw.

If the required current cannot be provided, the iems/headphones start distorting, which first becomes evident at the low end as it needs the most current. The right pairing is therefore important and I am surprised that some experienced testers ignore this.

It’s the current, stupid (and not the power)!

Such dongles that draw lots of current from the host device may provide more amplification power and less distortion (and balanced outputs etc.), but they will drain your phone’s battery in no time – or don’t work with some phones at all.

Examples of popular powerful dongles are the Shanling UA2 and Hidizs S9 Pro, that consume twice as much battery as the DragonFly Red – which defies the idea of portability. You find a power drain comparison between selected models here.

The real current hogs are limited to operation with a computer, but what is the point of a small form factor for stationary use?

Not every small device is portable!

Decoding Acrobatics

Most dongles decode MQA, which is apparently a useless format. And even the cheaper models manage sample rates up to PCM 32-bit 384 kHz and DSD128 (DoP), as offered by some streaming services.

This may be interesting for $$$$ desktop DAC/amps, but why does anybody need such sample rates in a $50-100 device with limited sound quality to begin with – while forking out that monthly subscription fee? Sounds like a “gimmick” to me.

Most renowned reviewers such as Steve Guttenberg are perfectly happy with CD quality, even on their $$$$ devices. Works for me, too.

Rigour in Dongle Evaluations

Dongles underlie the same standard evaluation criteria as self-powered DAC/amps when it comes to sound quality, but there are some special considerations adherent to their lack of battery. As they were designed to drive headphones from smartphones on the go, portability is the main criterium. And portability is defined by size/weight and synergy with the host device. Not every small device is portable.

There are compromises between:

• small size and performance
• source’s battery consumption and dongle performance

The small form factor limits the size of the logic board and therefore the space for electrical components – which requires shortcuts that take away from performance (but add to the price).

The other compromise comes from the aforementioned current limitation that restricts technical features, amplification power, and headphone pairing.

Such devices that are not designed with energy conservation (and hence portability) in mind do not work well or not at all with phones. They are not (very) portable and essentially restricted to computers.

In this case, their small form factor is pointless and even disadvantageous, as these dongles have to stand comparison with self-powered, larger DAC/amps that offer better performance at similar prices – and therefore better value.

Since dongles have limited power, much of their value lies in the sound quality.

In summary, when evaluating dongles, the analyst must have a good understanding of what these devices are supposed to do and how they achieve it.

Consumer Choices

As elaborated on above, the user has choices: either low-battery drain or high power and additional features – but not both. Many popular powerful dongles with lots of features are rather useless with a phone, and many low-current dongles are problematic with current-hungry transducers.

The choice is yours, but my dongles have to be as portable as possible.

Concluding Remarks

OK, “1001 Facts” may be an exaggeration, but now you probably have a better idea what dongles are about. I personally use a phone with dongle as I do not want to carry a dap, and because the small DAC/amp can be swapped between my current and future devices.

Over time, my dongles may have a higher life expectancy than my phone and also battery-operated DAC-amps such as the hip-dac or ifi Nano BL.

Until next time…keep on listening!

Contact us!

Disclaimer

My knowledge of these devices benefitted greatly from discussions with the USB-audio pioneer Gordon Rankin of Wavelength Audio Ltd., co-bloggers Alberto Pittaluga & KopiOkaya & Kazi Mahbub Mutakabbir & Biodegraded, and Chiqui Vásquez from hiendportable.com. AudioQuest’s Stephen Mejias provided the historical details. I thank them all.

Our generic standard disclaimer.

You find an INDEX of our most relevant technical articles HERE.

The post 1001 Critical Facts About Dongles (Source-Powered Portable DAC/Amps) appeared first on Music For The Masses.

Cons — No balanced circuit; limited Hi Res decoding; no “DragonTail” adapter included. 

Executive Summary

The AudioQuest DragonFly Red is a dynamic and natural sounding miniature headphone amp (dac/pre-amp). As the more vivid sibling of the relaxed DragonFly Cobalt, it is sourced by phones or computers with minimal battery drain.

Introduction

AudioQuest is primarily a cable company, established in 1980, but they also invented this type of small, source-powered portable dac-amp. The concept goes back to a meeting at the 2010 Rocky Mountain Audio Fest between DragonFly’s designer Gordon Rankin, Joe Harley (AQ’s former Senior Vice President of Marketing and Product Development), Steve Silberman (AQ’s former VP of Marketing), and Bill Low (AQ’s founder and CEO). Steve had asked to create a USB cable with an in-line converter with RCA cables coming out of one end.

Looking at a USB stick, Gordon said, “You know, we can make it like this. It could have a USB-A plug at one end and a 3.5mm output jack at the other.” Gordon Rankin had a lot of experience to offer. He had designed his first dac (the Cosecant) in 2003 and simultaneously started working on asynchronous code. He is one of the pioneers of computer audio.

In 2012, the first DragonFly was released, with the “Red” following in 2016. My analysis of the DragonFly Red obviously comes 5 years late so that there has been ample time for reviewers and audio enthusiasts to establish its place in the audio community.

What was new as of 2016, is that all DragonFlys had small enough power consumption to be operated by a phone’s battery. Not having a battery of their own increases their lifespan quasi infinitely over the bulkier transportable dac-amps with non-serviceable batteries (facing planned obsolescence).

I only received the “Red” recently, but had purchased the $99 DragonFly Black v1.5 back in 2016, which has been my goto until now. And I recently reviewed the $299 DragonFly Cobalt, released in 2019, that features very similar (but not quite the same) specs as the “Red” (which can be a bit confusing for the potential buyer).

In the last 2-3 years, Gordon Rankin’s idea of small portable dac-amps has been adapted by many manufacturers, mainly from the Far East, who are currently flooding the market with countless models priced between $10 and $400, with the sweet spot between $80 and $150.

Two main questions arise and will be addressed in this review. First, how do the DragonFlys Red and Cobalt compare? Second, is the 2016 DragonFly Red still current or have the competitors overtaken Gordon Rankin’s innovation?

Specifications

Physical Things and Usability

Just like the other DragonFly models, the “Red” comes with AudioQuest’s obligatory storage sheath and the “flight manual“. And, like the Cobalt, the Red is lacquered with car varnish. Guess its colour!

The DragonFly Red has a nominal output of 2.1 V (like the DragonFly Cobalt). This is no more than average in its category. Hobbyist Archimago measured a very low output impedance of 0.53 Ω. You find other detailed measurements by Stereophile and ASR (beware of overinterpretations).

Measurements, even if performed unbiased and correctly, cannot characterize a dac-amp sufficiently. They only give us half the story as there is no linear correlation between graphs and musical enjoyment/listening pleasure, sonic character/appeal, synergy, soundstage, separation, timbre, sense of ease etc. A correlation between electromagnetic and acoustic waves does not exist in physics. We need to deploy our ears for the ultimate test. There are plenty of examples where a “well-measuring device” does not impress sonically. Measurements are more important for product design than for practical testing. Alarm bells may only go up if measurements are “really bad”.

The DragonFly Red streams Tidal masters (MQA) and Qobuz, and works with all the non-audiophile streaming services such as Spotify, Bandcamp, Soundcloud etc. And it is firmware upgradeable.

For DragonFly Red, the status indicator produces the following colors: standby (Red), 44.1kHz (Green), 48kHz (Blue), 88.2kHz (Amber), 96kHz (Magenta), MQA (Purple).

All DragonFlys can be sourced by a computer (no Windows driver required) or Android/iOS devices…and used as dac-amp with headphones/earphones, or as pre-amp with a dedicated amplifier. Their functionality is described in detail in my Cobalt review.

Amplification and Power Management

There is enough power to drive my 300 Ω Sennheiser HD 600 headphone. The Red also operated all my iems and the mid-sized 70 Ω Sennheiser HD 25 or 60 Ω Koss Porta Pro with ease.

In my 3h battery drain test of several dongles, the DragonFly Red (and Black) had the lowest consumption on my iPhone 5S, the DragonFly Cobalt consumed about a third more, which placed it in the midfield. All DragonFlys stayed pretty cool during operation. But it could have done far worse than that….see the detailed results. In this respect, the DragonFly Red/Black are the clear winners and therefore most useful on the road.

Power Consumption Test: Parameters and Raw Results

I tested the power consumption of several portable headphone amps connected to my iPhone 5S. The conditions were as identical as possible: 3 h test, volume calibrated to 85 dB  ± 0.5 dB white noise with Dayton microphone, no sim card, BT off, no other apps open; network on, 32 ohm Blon BL-03 iem, Genesis’s Supper’s Ready (from the Seconds Out album) played in an endless loop.

The iPhone’s battery was fully charged at the start of the test and the remaining charge was measured thereafter. The result is shown in the table below. Since the tests were performed at different times and considering the ongoing battery deterioration, the results have to be seen with a grain of salt.

[collapse]

Sound Comparisons

Equipment used: Macbook Air/iPhone SE first generation; Sennheiser HD 600, Sennheiser HD 25, Koss Porta Pro; Cayin Fantasy, JVA HA-FDX1, Sennheiser IE 300, Sennheiser IE 400 PRO, BQEYZ Summer, Meze RAI Solo, Moondrop Aria, Shozy Form 1.4.

The AudioQuest DragonFly Red’s sonic qualities have been known for the last 5 years. But how does it hold up against its competition today?

In my perception, the DragonFly Red offers a rather vivid, organic sound with good extensions at both ends resulting in a marginally warm, immersive listening being off strictly linear. The slightly elevated bass contributes to a good depth but takes a bit away from the stage width, which results in a good three-dimensionality.

The Red is the most dynamic dongle I have tested. It has superb separation of good note weight, and is a bit edgy at the top end. The presentation is rather musical (as opposed to analytical) with good PRAT.

The DragonFlys are musical… The rest just gives you sound. Co-blogger and Red/Cobalt owner KopiOkaya.

The DragonFly Red is ahead of its immediate (external) competition listed here in terms of dynamics, microdynamics, and microdetail.

The equally priced and also natural sounding EarMen Sparrow offers an additional balanced circuit. The Sparrow is flatter, less vivid and less (micro)detailed than the DragonFly Red with a shallower but wider and taller soundstage (balanced circuit only). It is more powerful, and has a much higher battery draw.

The $129 EarMen Eagle was hailed by some reviewers to best the DragonFly Red. Eagle is more linear, less bassy, has a wider but flatter stage. Most importantly, it is leaner sounding not quite reaching the Red’s midrange body, dynamics, and resolution. But it has the DragonFly’s USB-A plug.

The $119 Earstudio HUD100 is the flattest/most linear of the lot, and also the least lively, which qualifies it for earphone testing and for use with very thick sounding (bassy) iems. The $119 Hizids S9 PRO is sonically almost indistinguishable from the HUD100. The $85 Shanling UA2 has rather warm and bassy signature. These three models lack midrange body and note weight, and vocals are rather thin compared to the Red.

DragonFly Red’s real challenger is the $299 DragonFly Cobalt. Most specs are identical between the two models. But the Cobalt has a more expensive dac chip, a different receiver chip, and some JitterBug USB-cleaning technology.

Both have different sonic signatures that broadly correspond to their shapes and colour: smoothly rounded in subtle blue vs. edgier in the louder red.

It is the exuberance and the lively treble that distinguishes the DragonFly Red from the smoother, more relaxed sounding, more composed and mature Cobalt. The Cobalt’s notes are more rounded and weightier, vocals have an unparalleled richness, smoothness, and naturalness in the dongle world.

The Red is more spectacular, more forward into your face/ears especially at the top end, where the Cobalt is easing off a bit. The Red’s liveliness works particularly well with powerful music such as rock, pop, EDM, anything that needs a good punch. The Cobalt plays its strength out in acoustic and jazzy music with emphasis on detail, microdynamics, and timbre.

You experience the principal differences between the two models best when having hightened sensitivity be it through a cold or hangover, or simply early in the morning.

JitterBug FMJ adds body and depth to the Red’s presentation, and it rounds the top off. Separate review of the “Bug” is here.

Is the DragonFly Red still relevant?

This question is frequently discussed in audio forums. The Red is very relevant to me. It depends how you look at it.

The present trends are: maxed out Hi RES (PCM: support up to 768kHz/32Bit; DSD: native DSD64/128/256/512), swappable sound profiles, maximum power, an additional balanced circuit, and perfect measurements. All that at a low price. If that’s what you are after, all DragonFlys are outdated.

If you don’t want to handle Windows drivers, they are not. And if you judge by sound quality, the Red has yet to find a challenger (beside the Cobalt).

The competing devices I have tested do not match the Red in terms of note weight, dynamics, and detail resolution. You may get more sound but not more musicality from the competition. There is still catching up to do with dac chip implementation, which is particularly evident in lean vocals reproduction and timbre.

So, what is the point of decoding super HI RES with a mediocre dac – and/or pairing it with a premium earphone?

The DragonFly Red also clearly leads the pack in power management: its low battery drain results an always cool (as opposed to hot) device.

And whereas the Red has had a long shelf life without any necessary re-issues (though it is software upgradable), the competition keeps pushing improved “Pro” versions of their products.

Another advantage of all DragonFlys is the USB-A plug, which makes it equally practical for Android and iOS devices. The new dongle generations mainly feature USB-C plugs or fixed USB-C cables, which result in cumbersome snakes when combined with the Apple camera adapter.

Sure, there are third-party lightning cables to connect to a USB-C socket, but their MFI chips are not optimized for Apple’s power management, which results in unreasonably high additional battery drains.

There are a few products that incorporate such ingenuity that they remain current and relevant over many years. Other examples are the Apogee Groove and Chord Mojo dac-amps, both unmatched since 2015. Gordon Rankin’s experience must have made this sustained difference in the DragonFlys’ case.

Vorsprung durch Technik?

What I use

Ok ok, everybody has different preferences. I am a phone guy who does not want to carry a second device (“dap”) around – and who wants to use the dac-amp between different devices. I don’t listen on my desktop computer so that my stack is catching dust. And my Shanling M0 dap, too.

Since 2016, my go-to has been the DragonFly Black, but in the last 4-5 months, it has been replaced by: the DragonFly Cobalt for acoustic/classical/jazzy music, the DragonFly Red for Rock/Pop and for on the road (low battery drain), and the EarMen Eagle for thick sounding/bassy earphones and headphones. And I am very happy with this.

On top of that, I am having a lot of fun experimenting with the AudioQuest JitterBug FMJ (I also had purchased the original JitterBug upon its release in 2016) and the ifi Audio iSilencer. More about these USB cleaners is coming soon.

Concluding Remarks

Considering its organic timbre and its rich midrange, the Red could be the best-sounding portable dac-amp I have tested. But it is not as the DragonFly Cobalt is one step ahead and takes over the title “Lord of the Flies” (apologies to William Golding). The DragonFly Red comes in second best, but it is also $100 cheaper.

My investigations have shown that the external competitors (I have tested) have yet to match the DragonFly Red in terms of sound quality, which, quite frankly, surprises me, too. They may impress with added features, balanced circuits, and amplification, but there is obviously still some room to catch up with the experience in asynchronous coding and the other nitty gritty that make your earphone/headphone sound “good”.

So, yes, the old “Lady in Red” is sonically still on top of the $200 class imo.

Until next time…keep on listening!

Contact us!

Disclaimer

The DragonFly Red was kindly provided by AudioQuest up my request and I thank them for that.

Our generic standard disclaimer.

You find an INDEX of our most relevant technical articles HERE.

Gallery

The post AudioQuest DragonFly Red USB DAC + Preamp + Headphone Amp Review – Still Lord Of The Flies? appeared first on Music For The Masses.

Cons — No storage case.

Executive Summary

The $129 EarMen Eagle is a rather refined sounding dac & amp that beats it immediate peers in terms of sound quality. It is the lowest priced dongle offering premium sound quality (of all the ones I have tested) imo.

Introduction

EarMen may be a rather young company that released their first products in 2020, but they have the very experienced premium manufacturer Auris Audio behind them. They are registered in Chicago but produce in Serbia, so you get an American-European product. Their first releases into the world of combined dac-amps were the excellent $199 Sparrow dongle and the $249 TR-amp, both receiving undeservedly little attention by consumers on our YouTube channel (You find the Sparrow video here and the TR-amp video there). But both products received high praises by reviewers.

The Sparrow is special in that it features a balanced circuit on top of the single-ended one, which appears to put the Eagle in its shadow, but undeservedly so, as we will find out. EarMen asked me to compare their Eagle to the AudioQuest DragonFly Red – which some reviewers have done already.

In this review, I will demonstrate that a comparison with the DragonFly Red is somewhat irrelevant and why I prefer the Eagle over the Sparrow. The Eagle simply has its very own merits and deserves to fly high above the radar of the dongle universe.

As mentioned before, I have written an extensive review of the EarMen Sparrow and both are overlapping in terms of functionality. I will therefore focus on my new findings with my experience in “dongle-itis” gained and rather focus on how the EarMen Eagle fits into the big picture.

Specifications

Download Manual: EarMen Eagle

Purchase Link: EarMen Shop

Tested at: $129

Visit mqa.co.uk for more information.

Physical Things and Usability

In the box are the EarMen Eagle, the warranty card, and a USB-A female to USB-C male adapter cable. This allows the Eagle to connect to Apple and Android phones/tablets, and any Windows/Mac computers. It features the ESS Sabre ESS ES9280 C PRO dac chip – which is well implemented.

As you may be well aware, the chip does not matter much for the sound as it is only one of many components. More important are its implementation (including filtering), the analog output stage, as well as the amp design and amp implementation. Therefore, devices with the same das chip may sound totally differently. One ingredient does not make a great meal, experienced chefs are needed. Luckily, they have good cooks at EarMen.

In contrast to its Sparrow sibling, the Eagle features a USB-A connector, a rarity outside the AudioQuest models. The EarMen Eagle therefore works with iOS devices (but requires the Apple Camera Adapter) without creating a “monster dongle snake”. And that’s why I prefer the Eagle over the Sparrow.

The actual EarMen Eagle is as sturdy and filigree CnC machined aluminium construction with top and bottom covered by glass…although I wished it had come with a sheath to protect it from being scratched. It has the same build and dimensions as the Sparrow.

The EarMen logo is illuminated depending on input:

• White – Connected
• Green – PCM/DXD/DSD
• Magenta – MQA
• Red – Not Connected

Functionality and Operation

A Summary Of What It Does

• Can be connected to Windows/Mac computers or Android/iOS sources
• USB-A connector works well with iPhone and Android alike (with included OTG cable)
• Works as a pre-amplifier or dac when connected to a dedicated headphone amplifier
• Drives small loudspeakers through its 3.5 mm output

AND Of What It Does Not

• …has no physical controls
• …needs no battery; draws power from source…and lots of it
• …is not driverless: needs a USB driver for Window computer
• …needs an Apple camera adapter or other third-party lightning cable for connecting to an iOS device
• …does not like driving power-hungry headphones, let’s say my 300 Ω Sennheiser HD 600, is pushing it

Well, the first fail of most dongle manufacturers (imo) is the choice of a USB-C connector, be it a socket or a fixed cable. While this is mildly beneficial for Android users, it adds inconvenience to iOS users as they need to chain two cables together: an OTG one and the Apple Camera adapter, which results in a cumbersome “snake”. Yes, you can get third party lightning cables to connect to a USB-C socket, but their MFI chips are not optimized for Apple’s power management, which results in unreasonably high additional battery drains.

The EarMen Eagle contains no battery and is powered by the source device. It works plug ‘n’ play with computers, tablets, and phones (Windows/Mac/Android/iOS). And it requires adjusting the respective sound panel settings in Mac and Windows computers (and a Windows driver).

Volume is controlled from the source device – there are no buttons on the EarMen Sparrow. It is as easy as that. The EarMen Eagle decodes all 32bit/384kHz formats: PCM, DoP, DSD64, DSD128 and MQA. 

Amplification and Power Consumption

You have to give it to EarMen that they disclose detailed power ratings (see specifications above). The Eagle drives any iem and mid-sized headphone such as the 70 Ω Sennheiser HD 25 very well, but starts losing heft at the more power-hungry, full-sized cans such as the 300 Ω Sennheiser HD 600.

In my 3h battery drain test of several dongles, the Dragonfly Black and Red had the lowest consumption on my iPhone 5S, the EarMen consumed about a third more, which placed it in the midfield. But it could have done far worse than that….see the detailed results. I would call the Eagle’s battery consumption acceptable but not outstanding.

Power Consumption Test: Parameters and Raw Results

I tested the power consumption of several portable headphone amps connected to my iPhone 5S. The conditions were as identical as possible: 3 h test, volume calibrated to 85 dB  ± 0.5 dB white noise with Dayton microphone, no sim card, BT off, no other apps open; network on, 32 ohm Blon BL-03 iem, Genesis’s Supper’s Ready (from the Seconds Out album) played in an endless loop.

The iPhone’s battery was fully charged at the start of the test and the remaining charge was measured thereafter. The result is shown in the table below. Since the tests were performed at different times and considering the ongoing battery deterioration, the results have to be seen with a grain of salt.

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Sound

Equipment used: MaBook Air/iPhone Se (1st gen.); Sennheiser HD 25; Cayin Fantasy, Sennheiser IE 300, Sennheiser IE 400 PRO, Moondrop Aria, Shozy Form 1.4.

The EarMen Eagle sounds essentially like the single-ended circuit of its sibling EarMen Sparrow. It is marginally off neutral with a bit of warmth added. Warm enough to work well with natural earphones, and neutral enough to work with warm sounding earphones. This makes it flexible with earphone/headphone pairings. It has a rather wide soundstage and a very pleasant, natural timbre, without any harshness or grain.

Voices are smooth, the imaging has some sense of ease, timbre is organic, transparency and clarity are good. The overall presentation is very musical, nothing is analytical or sterile. There is absolutely nothing wrong with the Eagle, sonically, but rather everything right.

EarMen Eagle Compared

With tens of dongles on the market, it has become impossible for a single reviewer to keep the overview. As a rule of thumb, pricier models do NOT have necessarily more amplification but a better dac (implementation) in my experience, which translates to better sound. The Eagle’s money is not so much in the amplification but in the sound quality.

“Better sound” in this context means richer/fuller, with better microdynamics (“the small things”) and macrodynamics. It also means more organic/natural as opposed to digital. These improvements result in better musicality. This is not different with your desktop stacks.

I was asked to compare the EarMen Eagle with the $199 AudioQuest DragonFly Red. And the Red shows the Eagle’s limits, which is no surprise as it is 50% more expensive. The Red is bassier, punchier, and more agile & dynamic, it has more note weight and better note definition, and better detail retrieval. It is a bit fuller, richer, and smoother sounding. Vocals are more forward.

The Eagle has a wider but flatter stage. It is overall leaner sounding than the Red but also a bit clearer in the midrange. The Eagle is overall more polite. These differences are only obvious when A/B-ing. What plays into the Eagle’s hands is its more linear signature: the Red does not pair as well with thick sounding/bassy earphones, that’s where the Eagle excels.

Compared to the $85 Shanling UA2 and $109 Hidizs S9 PRO, the Eagle is ahead in terms of timbre. It sounds more natural and even, and it is fuller in the midrange. UA2 is the bassiest and warmest of the three. The UA2/S9 PRO feature an additional balanced circuit and more power. You have the choice: features or sound quality. Quantity vs. quality.

The Eagle’s closest competitor, sound wise, could be the $119 Earstudio HUD100, which is less dynamic but more linear than the Eagle. I prefer the HUD100 for earphone analyses and the Eagle for recreational listening.

In summary, I would draw a line in the sand and claim that the Eagle is the lowest-priced dongle with true premium sound. This is, of course, subjective.

Concluding Remarks

The EarMen Eagle (and the Sparrow) are the company’s first foray into source-powered portable amp/DACs. And it is a very good one. The Eagle sounds great without any major weakness, has excellent build, and it is practical with its USB-A connector. And that’s why I personally prefer it over the more expensive Sparrow. Of all the dongles I have tested, the Eagle is the lowest-priced one that offers premium sound quality imo, and it is worth pairing with the most expensive iems.

In the meantime, I have mailed the EarMen Sparrow to Biodegraded for a second opinion/review.

Until next time…keep on listening!

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Disclaimer

The EarMen Eagle was provided by EarMen for my review and I thank them for that. You can get the Eagle at the EarMen shop.

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