Executive Summary

The $55 Maono WM620 is a compact set of two well-built, good-sounding microphones with receiver that can be used for Vlogging, streaming, and Zoom/Teams/Skype telecasting.

Also great for broadcasting music due a special “reverb setting”. Indoor/outdoor use with special noise-cancelling algorithm. Very portable and easily chargeable as all elements are stored in a dedicated charge case not exceeding the size of some TWS cases.

The Maono WM620 was provided unsolicited by the company and I thank them for that. You can get it from maono.com.

Introduction

Lavalier microphones, that is small mics that you attach to your shirt, are widely applied in TV studios for interviewing purposes. At home or in the office, you can use them for Zoom, Microsoft Teams meetings, or (YouTube) live streaming/Vlogging. If you want to do interviews, you need two microphones. And if you want to be mobile during use, your microphones should be wireless.

What we would like to see in such microphones is a small size (to conceal them if required), good sound quality, long battery life, and a long wireless range. The Maono WM620 Lavalier Wireless are…errrm…wireless.

On top of these standard requirements, they offer environmental noise cancelling — that is background noise is being removed…and a reverb mode for musicians and horror movies.

Maono is a high-tech company that produces affordable microphones, audio interfaces, headphones, and other audio accessories. They preferably sell directly to consumers to keep their prices reasonable.

Specifications Maono WM620

Physicals of the WM620

In the box is a charge case with USB-C cable, inside are the receiver and two transmitting microphones with magnetic clip, 2 magnets for attaching, and the manual. The case is barely larger than that of an earphone.

All parts are made of hard polycarbonate and appear reasonably sturdy. The receiver has a USB-C plug for attaching it to Android phones and computers. It also works for iPhone but you need an OTG adapter like this one for (except iPhone 15, which has a USB-C port). The transmitting microphones and the receiver are very small, the whole set is very transportable and therefore well suited for use on the road.

Functionality and Operation

The WM620’s receiver is connected to your recording device and the two microphones are attached to people, either by a (magnetic) clip or by an included magnet. Pairing is easy on the push of a button.

If you don’t like the view of the transmitter on your chest, you can hide it in a pocket or behind your shirt/blouse/jacket and hardwire a small external lavalier mic to it (not included)…which bypasses the two mics but reduces your recording microphones from 2 to 1. The receiver hosts a 3.5 mm headphone socket for real-time monitoring.

The microphones feature a 2-step environmental noise reduction to minimize the ambient background sounds, and a 4-level gain. They also have a reverb button for musical productions and a mute button.

The microphones and the receiver have a range of status LEDs on their tops.

Each transmitting microphone features its own USB-C port for charging, although they are all being automatically charged in the storage case. The receiver does no have a battery but draws power from the host device. You can use the set while charging your phone through the receiver’s USB-C port.

The mics work for 6 hours and can be recharged twice in the recharge case, which totals 18 hours of use. You need a 5 V USB charger (not included) for charging the case.

The maximum transmission distance is given with 100 m.

Sound Quality

The most import feature of this microphone set is its sound quality. Check it out here:

I used the maximum gain on both mics. The radio was playing very quietly. Pretty good sound to my ears. The reverb function is a bit of a gimmick but the environmental noise cancellation works very well. What’s really great…and I am repeating myself, is the compact size of the whole set…everything fits in a handy charge case.

Concluding Remarks

The Maono WM620 is a great microphone set that ticks the following boxes: it is small, light, and works well. And the price is right, too.

Until next time…keep on listening!

Disclaimer

The WM620 was provided unsolicited by Maono and I thank them for that. You can get it from maono.com.

Our generic standard disclaimer.

The post MAONO WM620 Wireless Microphone Review – UFO appeared first on Music For The Masses.

KZ, or Knowledge Zenith, or Dongguan Yuanze Acoustic Technology Company Ltd., have been flooding the western markets with earphones since 2014 (and the domestic market probably much earlier).

We may remember the early ED1 and ED2 that came in plain blue boxes and cost $5, including shipping from China. These were actually quite decent iems. KZ briefly built on their early success with some more sophisticated dynamic-driver models like the popular ED9.

When balanced armature drivers became affordable at around 2017, KZ were one of the first players to catch on and cash in on a grand scale. I quickly purchased and/or reviewed 22 of their models but stopped when they started to overflow and jam the lowest drawer of my office desk. KZ exacerbated this effect by producing bigger and bigger models such as the ZS10 or the BA10.

Their first multi driver models had a V-shaped sound characterized by vocals buried behind the soundstage, like the ED16. But they were cheap, most of them sold for below $25. Their next generation was characterized by an exaggerated upper midrange that produced a sharp and shouty sound. Examples are the EDX and ZSN Pro X.

But KZ did not give up and, in collaboration with the Comical Research Interference Network (C.R.I.N.), they fabricated at least one model with mostly decorative drivers (which they may have taken over from Campfire Audio): only some in each model actually “fired”…which did not play a role as some professional YouTubers did not notice it, possibly owing to too much decorative makeup around their ears. Decorative drivers helped keeping the price down, and YouTubers are mainly decoration, too, albeit annoying ones (for adults).

KZ play the game and they play it well: cashing in on obsessive-compulsive buyers who need their weekly fix…or mail call, as they call it on Facebook. These are eternal sidegraders. Such buyers spend cumulatively way more money on their countless budget models than on a decent earphone such as the Sennheiser IE 600, which would stand the test of time.

KZ must have a sign in their conference room: Many a little makes a mickle!

Finally, the KZ AS24 is a good earphone. It is model 1199. Yes, there are slightly more KZ models than Bruce Lee karate movies, and way more than words spoken by Sylvester Stallone in his Rocky francise. Number 1200 will be released soon. Congratulations!

Until next time…keep on listening!

The post KZ To Release Their 1200th Earphone Model appeared first on Music For The Masses.

Killers of the Flower Moon—I idolize Scorcese, but someone needs to tell him he needs an editor–as with his previous snorer, The Irishman, this potentially very interesting film bogs down in endless reaction shots and static dialogue. DeNiro is predictably fine as the villain, but much-overhyped Lily Gladstone is reserved to the point of comatose. Really grim throughout—it wouldn’t have hurt him to lighten the mood a bit.

The Holdovers—Another overlong disappointment from a director I usually like (“Sideways” is a classic), this one comes off as a something a retread of “Cider House Rules” and a schmaltzy Christmas movie. Paul Giamatti is a fine actor, but I don’t necessarily want to look at him for three hours and I was never sure if this was supposed to be comedy or melodrama.

Napoleon—some cool (and supposedly historically accurate) battle scenes but the generally excellent Joaquim Phoenix seems too whiny/neurotic to play an emperor, and his Josephine lacks any sort of schwing. Plus the film, for some reason, was shot with sepia filters, looks really dark and claustrophobic and could have easily stood to lose about 45 minutes (sensing a theme here?).

Zone of Interest—I initially thought this film was overly stylized, and it moves at a lugubrious pace, but it’s genuinely unsettling and visually brilliant.  The scene where Hoss tells his young son about increasing the “yield” of the death camps he supervises gave me nightmares, as did the screams emanating from outside the walls of his villa. Sandra Huller as Mrs. Hoss should have gotten the Oscar.

Anyone But You—please don’t judge me, but I enjoy the occasional brain-dead rom-com. This one, unfortunately, lacks both the rom and the com and the plot, even by the standards of the genre, is sub-moronic. Busty young Sydney Sweeney isn’t a bad actress (she was very good in “Reality”), but she has zero chemistry with her semi-naked co-lead and she just ain’t funny. Two hours of my life I wish I had back.

Poor Things—a really imaginative feminist take on Frankenstein, this movie has the quality lacking in almost all the other Oscar nominees—it’s entertaining, as opposed to merely cinematic. Emma Stone is great, but Mark Ruffalo steals the show as the rakish cad.

American Fiction—another one I wanted to enjoy more than I actually did. Jeffrey Wright does pretty well with what he’s given, but the ghetto novelist theme is less edgy than intended and the whole dissipated middle-aged college professor milieu feels tired.

Road House II—the very idea of remaking the classic original is sacrilegious. This version has lots of big explosions, some amusing scenes with Conor McGregor and an absurdly jacked Dalton, but wholly lacks the sheer, joyful idiocy of its predecessor. Pain don’t hurt?

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INTRO

TRN Conch is calling from 2018, and looks like TRN dusted off the V30 shell and equipped it with a single dynamic 10mm DLC coated driver. Shell shape is familiar, coils tightly and fits easily in smaller ears, however the nozzle width is still quite large. I did like this smaller Dunu like shell back in the day from TRN, but seasons change. Unfortunately the smaller size allows it to float in my ear, and the angle of the nozzle tends to push out of my right ear.

I’m just going to get right to it, Diamond Like Coating doesn’t mean it needs to cut like a sharp blade, but that is what we have here. DLC was all the rage 2 years ago and still works great in some other models. I bought another DLC IEM from Senfer a few years ago that was just so rough I could not even review it, plus it had major channel imbalance. While the TRN Conch looks like a great vacation package, the reality is far from white sandy beaches and tasty fruity beverages.

SOUND

Tested with LG V8, Shanling UA3

The TRN Conch has a dry damped bass reminiscent of British bass. It was tuned to have the mid bass snap with some leftover sub-bass for dessert. Vocals sound a bit chesty since the bass is more mid-bass centric. Not too sculpted though with a soft mushy center.

Midrange is clear and resolving with average depth definition which is right in line for something in this price range of $38, but then we continue into the overzealous treble that hits sharp and grainy occasionally becoming sibilant.

Timbre has an unattractive tinge, but I also do not ever remember any TRN model being a poster child for normal. Instead they tend to always shoot for big treble with highly focused presence where snare and cymbals jump out, at least that has been my experience with all the models I have used.

All this excitement comes even when using the tuning nozzles I find the least offensive. The other two have the tell-tale eastern 12-15db pinna upper midrange that makes them extremely forward. The level of detail for the TRN Conch unfortunately does not need a magnifying glass put towards an area it struggles with.

PACKAGE CONTENTS

The TRN Conch comes with extras you would expect in a $100+set with the hard circular case, the swappable tuning nozzles, 2.5mm/4.4mm balanced 3.5mm single ended connectors, and great sticky advanced eartips named TRN T eartips. They feel similar to the MOONDROP springtips. The cable is above average and more premium than TRN/KZ entry level thickness and quality that reduces some tangling, and the chin slider moves easily.

All these extras attracted me to the TRN Conch for curiosity anticipating a new TRN ready to take on the midfield “budget”. Ignoring the zesty treble it might work for mellow tracks, but anything else is tiring for me. I recommend pairing it with a warmer source to tame the sharpness and smooth it out even further.

Perhaps the tuning nozzles are worth stuffing some extra dampening materials inside to tame that treble peakiness around 8khz, but there are others ready to go without this hiss. This was not the more mature TRN I was hoping for, the treble has the contrast turned to 11.

TECHNICALITIES / COMPARISON

Staging is quite narrow feeling, I tried the reference and atmospheric nozzles with no improvement. The reference moves the staging closer, but there is still congestion.

In comparison to the TRN Conch, the Kiwi Ears Cadenza has a leaner proper midbass, and lower midrange with less pizazz in the treble and is easier to listen to without a hint of sibilance. The TRN Conch has better ear-tips that stay on the nozzles, and the accessory kit with case and connection types, but is that supposed to be the main show?

THE END

The TRN Conch as an IEM is the summary of the book, and not the actual book. While you get a decent picture and substance of the music, to fully appreciate the nuances requires more in depth studies.

The accessory package is good, the bass lacks some definition and the sibilant treble is sharper than I would like. In this day and age, a rookie mistake even for $38. Overall the window dressing is only enough to get a passing grade, but this will not be a good memorable IEM for me other than a DLC IEM that sounds like a sharp rock.

Disclaimer: I would love to extend gratitude to Shenzhenaudio who sent these free of charge.

SPECIFICATIONS TRN CONCH

Resistance 30 ohm
Sensitivity 114dB
Driver: 10mm Dual Circuit DLC Dynamic
Shell: Metal
Cable: 0.75mm with detachable 2.5mm balanaced, 3.5mm, 4.4mm balanced

TRN CONCH GRAPHS

• Left vs Right
• Nozzle Tuning

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DISCLAIMER

Get it from SHENZHENAUDIO

Our generic standard disclaimer.

About my measurements.

The post TRN Conch IEM Review – Watch Where You Step appeared first on Music For The Masses.

I tested the V3 in my office system, which presently consists of a 100w  Acurus A100 amp/L10 preamp driving PSB Synchrony 1B speakers, which have moderate sensitivity at 88dB and 4 ohm impedance; I also swapped in my (seriously great), 92dB ADS L520s and, for laughs, my notoriously power-hungry Revel M20 bookshelves. 

Fosi’s nonsensical claims of 300-600w output notwithstanding, Durwood guesstimated the power of the V3 (with the stock 32v power supply) at 30-50w@ 8oHm, which sounds about right (ASR measured it at 38W). The results in listening tests were quite predictable, which is to say the V3 fared best with the very efficient ADS and worst with the tough-to-drive Revels, which sounded clean and undistorted but almost bassless.

In contrast to comparable, cheap Class D amps like the SMSL A300 (review here), the V3 is fairly neutral and uncolored—it eschews the bright, “digital” quality of its peers, while retaining surprising high end detail and extension. Channel separation is clean and there’s no audible distortion, even at high volumes.

The conventional Acurus amp, however, shows substantially more body and warmth; notes on the Acurus are thicker-textures and the presentation is smoother (if somewhat less resolving). Most significantly, bass on the Acurus sounds much deeper and fuller; the little V3 sounds comparatively flat and lacking in dynamics and drive. Comparison to the Parasound HCA 1500 in my main system yielded the same outcome. Of course, the Acurus and Parasound are significantly more powerful, expensive and physically larger.

To some extent, the V3 exemplifies the intrinsic differences between Class D and conventional amps, which is to say it trades a beefier, more forgiving tone for clarity and resolution. It’s wholly inoffensive and, especially considering the $89 pricetag, a very credible entrant in the small-form factor amp segment. Truth be told, though, unless you’re driving very efficient speakers and desk space is a priority, you’re better off with a more robust amp.

Disclaimer: borrowed from Durwood.

Specifications Hidizs Fosi Audio V3

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The TC01A and TC01C USB adapters were provided by ddHiFi for my analysis…and use. And I thank them for that. You get them from DD Official Store for $8.99 each or $15.99 for the couple.

What? An adapter review? Another one? Does anybody care? Sure, I love adapters, but I never intended to write one about the TC01A and TC01C. When I was asked to analyze the Janus3 earphone, I inquired whether I could try these out. I have purchased quite a few of USB-A to USB-C adapters (in both directions) since Apple changed their USB notebook ports from A to C.

I purchased a few cheepos and a couple of UGREENs. UGREEN is a reliable brand. But there was one problem I could not resolve: getting a tight, stable connection between my Hidizs AP80 Pro-X DAP and the USB-C to USB-A adapter. Most did not work because of the DAP’s leather case, and they also did not fit firmly without. I often had my music interrupted when the connection got loose. Annoying.

On top of that, I am operating amps and headphones with variable 3.5 mm and 4.4 mm sockets and plugs, and also purchased adapters between these two circuits. Relying on cheap no-name adapters from aliexpress caused more harm than good. Independent of sonic issues, some of these did not fit properly and I often had only one channel working.

The TC01A and TC01C are pricey – $16 USD for the pair – but they work. I now get a snug fit on my DAP and the thick leather case ain’t a problem for the connection either. Haptically, they are head and shoulders above their competition. And they are the only ones with gold-plated contacts.

What about the sound? Will probably make no difference. But that’s not really my concern. I want a reliable connection. And it looks good, too.

These are definitely the highest quality USB adapters in my collection.

Sometimes, simple things an make a big difference.

Until next time…keep on listening!

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DISCLAIMER

Our generic standard disclaimer.

The post ddHiFi TC01A and TC01C USB Adapters Review appeared first on Music For The Masses.

INTRODUCTION

Courting green audio aficionados and perhaps some seasoned folks, the Fosi Audio ZA3 desktop amp has the allure of affordable yet buzz worthy tech. They have built an arsenal of small but mighty desktop power amplifier solutions, from 2 channel, 3 channel and now a select-able two channel/monoblock built around the Texas Instruments TPA3255 class D amp chip. 

By scaling back maximum power, they are able to also run it in a lower signal to noise ratio region that makes it clean and resolving at the same time and delivering plenty of power for a desktop or even room filling output. However we need to be realistic about the 300W max power output as the power supply is not large enough to deliver true 300W continuous power output with the 32V maxing out at 160W or 240W for the 48V version.

Having experimented with the TB10D, and V3 amplifiers from Fosi Audio, the ZA3 is the next generation or third iteration of this design, each one improving on the next as it should. The TB10D/BT20A Pro were Gen1 using the TPA3255 and were the most powerful version…until they launched the V3 with a 48V 5A power supply option.

Technically you can order the 48V 5A power supply and use it with the TB10D Pro for more power with reduced signal to noise specifications. Fosi Audio offers it with 32V/5A. 48V/5A or no power supply options priced at $129, $149 and $99 respectively.

FEATURE COMMENTARY

Ideally though the V3 was fairly well received minus some caveats, and the Fosi Audio ZA3 is a more mature version with the stylistic elements of a burnt orange volume knob, balanced inputs, a usable preamp and a mono mode to boost power output, or wastefully use it to power a small subwoofer.

New features not available on their other models include the switchable RCA or XLR balanced input that accepts ¼” TRS/XLR. With these two unbalanced and balanced connections you get two inputs. We are still stuck with the tiny binding posts found on their other models, I tend to use banana jacks for easy switching anyway.

Other new features include the subwoofer output, and 12V trigger input to automatically turn it on/off with a preamp or AVR? Another more diy approach for desktop PC users would be to run a 12v out from your desktop PC and trigger it that way. There are most likely some DACs out there with 12 trigger outputs to turn it on as well. I did test this with my ancient Denon AVR-3806 and it comes in handy, let me explain.

The Fosi Audio ZA3 powers on or off with a long press on the volume knob, it seems sensitive to where you push on it, or it did not always recognize that I had tried to turn it on. Maybe I was impatient, but sometimes I just did not have the magic touch to turn it on. I would prefer a standalone power switch if the knob is going to be touchy. The knob itself is smooth and the indentation is prominent enough to see the position of it from across the room.

With the 48V 5A power supply almost as big as the amp itself, I felt comfortable taking this thing for a spin as the main room amplifier and freeing it from pure desktop usage. While it fits more at home there, it has plenty of output to be the focal point of a serious sound system.

The manual is not entirely clear about loading the amp, it states 2-8 ohm speaker systems, I imagine this is for stereo operation. To be safe, I would not recommend using a 2 ohm load in mono mode unless Fosi Audio explicitly states it.

SOUND COMPARISONS

Pairing the Fosi Audio ZA3 with my Amrita Audio Elan 8 inch 2 way floor standers, the SMSL DO100 DAC, and Sony DVP-SS7700 it performed rather exceptionally for a Class D chip amp. Imaging separation and clarity were quite noteworthy. Bass control was tight,  yet perhaps a little restrained. This was not a lack of power as I was running it at a decent listening level about 50% maximum clean output, instead there was  some richness missing.

Swapping in a Parasound HCA800 II set to the same level, it sounded more enveloping and the bass had more texture and warmth. More meaty and visceral sounding, I swapped in the Adcom GFA-545 again doing some level matching and noticed it too had more drive behind the bass.

Between these two amps, they both gave the impression of stronger depth and more envelopment. The Fosi Audio ZA3 had a defined stage width with less front to back range, and the Parasound felt more like an arcing stage as opposed to a flat stage.

To be fair, these are some well regarded 2 channel amps with plenty of power supply and output current to power the vast majority of 2 channel sound systems into blissful happiness. Next I put it up against the Denon AVR-3806, a decently powerful home theater receiver and it did not have the same clarity or resolution of the Fosi Audio ZA3. 

My final test of the Fosi Audio ZA3 was to incorporate the subwoofer pre-out. The addition of the subwoofer pre-out helps with the new wave of small bookshelf plus subwoofer setups. It is much easier in a smaller room or desktop setup to make room for a bookshelf and offload the heavy lifting to the subwoofer on bass duty.

The pre-out has a 200Hz low pass filter and is controlled via the volume knob. The V3 pre-out was not a true pre-out, so Fosi implemented a proper and useful feature. Note it can be used to supplement the natural roll-off of your main speakers, there is no high pass filter for the main channels and you would need to use the built in crossover of your subwoofer to adjust it down to a proper cut-off frequency.

MODDING AND HOT-RODDING

Op-amp swapping carries over from the V3 to the Fosi Audio ZA3. Removing four 2mm hex screws (two on the back panel, two underneath), prying off the volume knob with a plastic cooking spatula, and loosening the 10mm nut gives you access to the internals, which construction shows are miles and miles better than a Dayton Audio DTA-100a I have from over a decade ago.

The op-amps are used in the pre-amplification stages and provide gain and feedback control to minimize distortion. There are a total of five op-amps that can be swapped, one for each Left/Right, two for the subwoofer pre-out (one is used for the filter), and one for the XLR.

They come stock with TI NE5532 which is vintage by audio standards, but an extremely stable, inexpensive, noise free op-amp found in millions of audio devices including professional audio gear.

Other boutique op-amps can be swapped in, but adding new ones may not always be a great idea or guarantee “better” performance. It is fairly easy for some faster op-amps to become unstable and oscillate in the wrong situation, or perhaps they cannot drive the load, or the gain is not structured correctly to minimize distortion.

 The high price tags of other op-amps might be a result of low use so it does not benefit from economy of scale, or just flat out because they can. I happen to have 4 BB ones ranging from the OPA2134PA, 2227P, 2228P and 2107AP from an Audiotrak Prodigy soundcard experiment.

I might investigate in a separate review if I find it interesting enough, some of them might add noise or cause instability and I would like to measure the effects if possible using my limited measurement equipment. The heatsink + power resistors would most likely overheat when looking at distortion components, I really need to bring out my water heater element load to handle the power better.

Bipolar, FET and discrete op-amps can behave differently as well so without proper testing equipment, you might introduce some coloration into your audio chain. There used to be great information by Douglas Self over a decade ago, but there are also many other great resources (59+ op amps tested ) found throughout the internet or in books.

You can also just take the religious route and just believe. I can fully appreciate how hard it is to remove sighted bias from testing, and how short our memory is if not performing quick changes to compare.

FINAL REMARKS

I did test it in mono mode while I did some housework, and it never got too warm or shut down. I was not stress testing, but I feel confident that the Fosi Audio ZA3 handles mono loads just fine and they boost a 240W power rating into a 4 ohm load. Get two and run them as monoblocks and have ultimate channel separation.

Channel separation is the noise of one channel bleeding into the other channel if you were unaware. One missing feature is a volume control bypass for the dual mono folks, but max them out and let it rip through another pre-amp device, DAC or streamer.

One feature missing is perhaps a phono input for the resurgence of vinyl. It’s not a must have feature, as those really into vinyl might prefer to use a standalone phono preamp of their choosing anyway. Other people might prefer bluetooth input instead, a good DAC or preamp might include those features separately, I enjoy this as just an amp.

Class D is essentially a motor control circuit design tailored to meet the audible audio frequency spectrum requirements, and speakers share similarities to motors in that a coil of wire is excited through a magnetic field. There should be no fear in using modern Class D amps and losing fidelity. While differences were noted between full fledged larger brethren, I have minor qualms in recommending the Fosi Audio ZA3 amplifier.

While the V3 is on loan to Loomis I am unable to directly compare, I believe the ZA3 stages closer to the Adcom and Parasound than the V3 did. It does a better amplification job than an AVR and it looks sleek on a desktop being plenty powerful in a nearfield setup.

Disclaimer: Fosi Audio thankfully provided this gratis and this review was not written by robots.

FOSI AUDIO ZA3 SPECIFICATIONS

Chip Set Texas Instruments TPA3255
Output Power With 48V/5A PSU
Stereo: 155Wx2 @4Ω
Mono: 235Wx1 @4Ω
With 32V/5A PSU
Stereo: 95Wx2 @4Ω
Mono: 110Wx1 @4Ω
Terminating Impedance 2-8Ω
Input Mode RCA, XLR, 1/4″ TRS
Output Mode Speaker Output (supports banana plug or bare wire connection), Active Subwoofer Output
Frequency Range 20Hz – 20KHz(±0.1dB)
SINAD 89dB
THD ＜0.006%
SNR ≥106dB
Dynamic Range ≥106dB
Device Dimension 15.49 x 18.39 x 5.08 cm; 1.78 Kilograms
DC Input Range 24-48V
Power Supply 32V/5A, 48V/5A

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DISCLAIMER

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Fosi Audio Direct

Our generic standard disclaimer.

About my measurements.

The post Fosi Audio ZA3 Stereo/Mono Amp Review – Making New Friends appeared first on Music For The Masses.

At-a-glance Card

Full Device Card

Test setup and preliminary notes

Sources: AudioQuest DragonFly Cobalt / Chord Mojo / E1DA 9038D, 9038SG3 / Questyle QP1R, QP2R, M15, CMA-400i / Sony WM-1A – Final Type-E silicon tips – Dunu DUW-02S cable – lossless 16-24/44.1-192 FLAC + DSD 64/128/256 tracks.

Signature analysis

Tonality

EA1000 are tuned following a wiiide V shape, and feature a replaceable “tuning nozzles” system to offer interesting variations of the tonal balance on top. There is a slight metallic sheen coming up on the high trebles, also depending on the source material.

No matter the nozzle choice the timbre stays more or less unchanged: mid-bodied notes across the board with a sole exception for lean-ish low mids, and a commendable overall organicity.

The various nozzles deliver different sonic nuances vis-a-vis their building materials (Gold ones are made of brass), their length, their front mesh and of course the sponge or cloth they may be filled with. Here’s a description of the differences each one brings to the board.

Red nozzle : midbass is somewhat “bloomy”, its notes tend to “expand” a little bit; highmids and treble are instead near-precisely the tonality I prefer. Too bad for that bass, which is not as organic as it should.

Gold nozzle: midbass is evidently more combed, and I like it better, but so is treble too, while highmids are more forward. Guitars and femaie vocals are probably best expressed here, but stage height is cut off, and air and spatiality take a hit.

Black nozzle: midbass is the same as Gold, while high mids and treble are very similar to Red, with possibly a slight tad more energy on one hand, and a bit less depth on the other.

It’s a toss between Black and Red for my particular tastes, and well… I experimented further and found out that in the end I prefer Red with a -1,5dB Q=1 correction on 90Hz to “clean” those doublebass vibrations off. And yes, I’m a “never happy dog” !

Sub-Bass

Sub bass is extended but not elevated. Rumble is present but not imposing itself, which is perfectly good for my library but may be a point of contempt for other musical tastes.

Mid Bass

Mid bass notes are very well rendered by EA1000, with the Red nozzle adding a bit more butter compared to the other two alternatives.

While such makes them a bit more greasy than they should to be called perfectly organic when it comes to render acoustic bass instruments, the effect is indeed not excessive so not only it is welcome in conjunction with many musical genres, but also not necessarily unwelcome even to hardbop or modal lovers.

It’s quite easy to guess – or hope? – that the high quality of EA1000’s mid bass rendering is also directly dependent on that uncommon “Passive Radiator” device inside the box, and anyhow this is what Simgot’s marketing insists on making us believe.

Mids

Mid frequencies are a bit of a mixed bag here. They are recessed in their central part, and somewhat lean in their lower segment.

High mids however go up in power quite rapidly between 1 and 2KHz which is where they give their best. As a consequence, and simplifying maybe a bit too much, EA1000 render guitars and sax tenors better than pianos, for example.

Male Vocals

Vis-a-vis what I just noted about mids in general, male vocals are a territory where EA1000 don’t fare particularly well: especially baritone and bass voices come out perceivably leaner than real, and that’s a common trait no matter the nozzle installed.

Female Vocals

Opposite of the male case, female vocals benefit from a better tonal situation on EA1000 and in facts come across very naturally colored, bodied, detailed and very pleasing at all times.

Highs

Treble is one of the areas where EA1000 do best, and at the same time one where the 3 different nozzles apply more significant variations.

As I anticipated above, to my tastes Red nozzles nail it, period: “Red” trebles are energetic yet still not excessively so, bodied, very detailed, and they “breath” a lot of air in terms of spatiality. Their sole real downside is that perceivable metallic aftertaste coming up once too often – it’s not too strong, nor too fastidious, but it’s undoubtedly there to make the final result just a bit less than fully positive (what a pity).

Golden nozzles furtherly strengthen highmids and low trebles, while also taking some of that magic air quantity off. Black nozzles are very, very similar to Red up there, juts a tad less airy (but less so compared to Gold).

Technicalities

Soundstage

Width and height are very extented, much beyond what you normally get on similar priced IEMs. Depth is “only” barely above average, always referred to the same category.

Imaging

Macrodynamics are very well executed on EA1000, with always precise instrument positioning on stage.

Details

EA1000 offer very good detail retrieval in the high mids and low treble.

Retrieval is good on midbass too, where the concessions made to drama and musicality just rarely steal something off note contouring. As my few readers know I’m noticing this as I’m biased towards acoustic music.

Instrument separation

Separation, layering and microdynamics are all no doubt EA1000’s excellence points. It’s indeed very uncommon to find better around, not only at this price point, but much higher too.

Driveability

EA1000 are easy to drive in terms of sound pressure output thanks to a good sensitivity (109 dB/mW) paired with a not too low impedance (16 Ohm). Their sound quality scales with amping quality however – I suspect this may have to do with that passive radiator device.

Physicals

Build

EA1000 offer a very convincing feeling of solidity and reliability. Their full metal housings are obviously impervious to reasonable physical damages (and possibly to some unreasonable ones, too).

Faceplates are covered by what are declared as “crystal” (!) glasses. I couldn’t assess whether it’s actually crystal, all I can say is it does not appear to be easily scratched, and when in contact with a metal tip it does not tend to sound “plastic”.

For the benefit of those who pay particular attention to aesthetics it should be noted that the housings’ chrome finish and of the “crystal” faceplates are very well taken care of, and that will help them feel alive in their compulsion to continually wipe every surface clean of fingerprints.

Fit

EA1000’s housings fit me near-perfectly in terms of size & shape. Nozzles are not too short, and they are mounted on a sort of protruded portion of the shell. Eartips of the right size easily get a grasp – even more than a seal – onto my canals’ internal surfaces, with this contributing to a firm seating once properly worn – all this in spite of the earpieces not being precisely “featherweights”.

Comfort

As mentioned above EA1000 sit well in my outer ears and prove perfectly comfortable to wear, even for prolonged periods of time.

Isolation

Given the housings’ shapes and calibrated dimensions, EA1000 shells form an important isolation barrier. The multiple vents, and most of all the wide opening corresponding to the passive radiator do of course take steps in the opposite direction but I would say that the overall result is more than satisfactory anyhow.

Cable

EA1000 are sold with a replaceable non-modular-terminated 3.5mm cable. Its aesthetics and haptics are more than ok but I could not conduct my usual comparison tests round-robining amongst my various sources as most of them got balanced outputs. I can’t consequently offer an opinion on the stock cable’s sound performance. For my tests I paired a Dunu DUW-02S cable.

On a more commercial note, given the recent (2-3 years) market evolutions, the fact that an otherwise “premium” package like EA1000’s does not offer a balanced termination cable option – be it in form of available choice at order time or of modular termination system – is to be reported as a negative remark in the general evaluation.

Specifications (declared)

Comparisons

Tanchjim Oxygen (€ 190)

Oxygen feature a bit softer attack, yielding into less punchy bass and overall silkier, more relaxing timbre. Oxygen’s tonality is overall more organic, exquisitely neutral – which may of course be a love-hate thing in some cases. Their midrange is not recessed resulting in much better vocal and guitars rendition. Oxygen’s trebles are less energetic, airy and sparkly.

Stage on Oxygen is a bit narrower, perceivably less high, but much deeper. Lastly, Oxygen are much more demanding in terms of source power.

Intime Miyabi Mk-II (€170 + import costs)

You can find my Miyabi review here. Miyabi Mk-II differ from Miyabi insofar as their mids are less upfront, and their timbre is dryer and clearer, and that’s why I’m taking them as a more appropriate comparison to EA1000 here.

Midbass elevation is similar between Miyabi Mk-II and EA1000, but EA1000 have a cleaner timbre, better punch and sound more resolving there. In a nutshell, bass is technically better on EA1000, very possibly due to their Passive Radiator thing.

Miyabi Mk-II’s mids are way more bodied, and obviously more organic. Trebles are overall better on Miyabi Mk-II, less upfront but more refined. Opposite to bass, while good on EA1000 treble is, that is better on Miyabi, likely consequece of the fantastic deeds of Watanabe-sama’s VST driver,

Miyabi Mk-II cast a slightly narrower stage, same height, but way better depth. They require a bit more power than EA1000 but the difference is not big on this.

Ikko OH1S (€ 150)

The two offer very similar timbre, and similar general tonality. Bass is less forward and less punchy on OH1S (almost ruler-flat, indeed), which also contributes to their mids be felt as less recessed, more “meaningful”, and I’m talking about both low and middle mids.

Trebles are more energetic on EA1000, which is an advantage at times, but a disadvantage when this pairs negatively with some tracks or musical genres. Separation is similar on the two models, layering is a bit better on EA1000 due to better microdynamics. Stage is narrower on OH1S, but deeper.

Final A5000 (€ 299)

A5000’s presentation is more markedly V-shaped compared to EA1000’s. Both offer a dry timbre with little concession to warmth, with A5000 being by a whiff the coldest of the two.

Bass are a tie game, both models offering very significant quality in the region. Mids are also similar, in this case meaning both models choose to let them in second-layer position, accepting sub-organic leanness. Trebles are better on EA1000, with A5000 too often scanting into excess and sibilance, and delivering less air.

Technicalities – all of them – are in favour of A5000, sometimes vastly too. Stage is wider and deeper on A5000, just a bit less high. Layering and separation is macroscopically better on A5000. Ditto for detail retrieval, which is “sensational” on A5000.

Considerations & conclusions

Simgot hit a strike with EA1000, there’s very little doubt about this. Their nice timbre and even more their greatly calibrated tonality are of absolute value. Technicalities are also extremely good, with a particular mention deserved by layering and microdynamics. Their less shiny aspects are in the end very few in comparison.

As you may or may not know I’m quite selective, and that’s why I’m pleased to state that EA1000 fall amongst the very IEMs I find recommendable around the €200 mark. For that, I’m double thankful to Simgot for the review opportunity I’ve been offered.

Our generic standard disclaimer.

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Unlike the stubby, cable-less SD2, the bespoke aluminum-and-glass S9 Pro Plus utilizes the same traditional cabled design as its S9 forbearers, but adds volume buttons which allow for much finer adjustments than most source’s volume control and which double as selectors for six different digital filters (fast roll-off, linear phase slow roll-off etc.).

Both sampling rate and filter effects are indicated by colored lighting, which is a nice aesthetic bonus. As with most such gimmicks, the filters on the S9 Pro Plus have a very small (but audible) effect on the presentation, with the “slow” settings showing less ringing and more rounded treble. Ultra hirez PCM and DSD support is provided, though curiously no MQA, which seems to be a dying breed.

Prior reviews of the S9 Pro Plus have stressed its considerable driving power and inclusion of a balanced (4.4m) out, and it certainly is a lusty beast—even through the single-ended out IEMs of average sensitivity sounded loud at 33% of my Pixel 6’s volume, while (other than losing a little subbass depth and  tightness) the 300 ohm/97dB Senn HD 600 didn’t break a sweat when played through the balanced out.

For all that, careful pairing is advised—unlike the S3, the S9 Pro Plus did not match well with very sensitive IEMs like the BGVP DM8 or the KZ ZS10 Pro, which sounded edgy/strident at the high end, especially at higher volumes. In general, the S9 Pro Plus seemed to play better with higher impedance (>50 ohm) phones. Note, too, that if battery life is a priority, the Plus is very power-hungry and will get warm with use. 

The Plus uses an ESS DAC chip which imparts a very different signature to the Plus—in contrast to the brightness, forwardness and lean note texture of the its progeny, the S9 is less adrenalized (though not exactly laid-back), with a neutral-to-slightly warm timbre and a thick, but still-crisp note texture. Bass has considerable depth and emphasis, mainly in the subbass region, but remains tight.

Where the SD2, which image very well and present a lot of space between performers, imparted a “bigness” to the music, the S9 Pro Plus sounds simply massive—upright bass has a resonance and body you won’t hear with lesser pieces, while snare drums have a booming-but-realistic snap. Unlike, say, the Moondrop Dawn, overall coloration isn’t wholly absent, but is considerably less on the Plus and there’s little of the digital sheen you’ll hear on the S9 or SD2.

Resolution and transparency are very, very good—little nuances like the quiet guitar echoes and cymbal taps on INXS’s “Need You Tonight” are revealed in a way I’ve never heard before, while the unadorned piano on Keith Jarrett’s “Koln Concert” sounds eerily lifelike. Other than some hiss on very sensitive phones, background noise is wholly absent.

Yet unlike the similarly revealing SD2, the S9 Pro Plus avoids sounding clinical or excessively detailed, and coherence is almost flawless, and you can pick out different performers without losing focus on the musical whole. Which is not to say they’re particularly smooth or mellow—they still retain a hint of Hidizs’s characteristic sharpness/metallic edge at the highest frequencies, and treble-averse listeners might find it slightly hot, but for most of us it’s an appealing, very detailed presentation.

Nominally $139, the S9 Pro Plus is selling for $89 on the Hidizs website, which is only a few sou more than Hidizs’ less powerful models and actually cheaper than the (non-Plus) S9. Especially considering its build quality, flashing lights and fancy tech specs, this seems like good value. Again, it doesn’t achieve the purist’s audiophile-neutral ideal, and you’ll need to be careful with impedance matching, but the S9 Pro Plus plays at a significantly higher level than its cheaper peers and gets my gushing praise.

Disclaimer—yet another freebie from Hidizs—get one here: https://www.hidizs.net/

Specifications Hidizs S9 Pro Plus Martha

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