Comments on: iFi IEMatch Review – Must Have

By: him

him — Tue, 16 May 2023 08:47:33 +0000

Hello, my earphone is SRH1540, and the amp is ZEN CAN. It must be turned to a very low level so that it will not be too loud. Even if a 60-ohm high-impedance line is added, it will be the same, but turning too low will cause pitch deviation. Can IEMatch solve my problem?

By: Alberto Pittaluga (Bologna, Italy)

Alberto Pittaluga (Bologna, Italy) — Fri, 29 Jul 2022 10:22:53 +0000

In reply to Gaurav Goel. Dear Gaurav IEMatch might solve your problem but not the 4.4 version. You should give a shot to IEMatch 2.5 instead, and use it strictly on its ULTRA setting.

By: Andrew

Andrew — Tue, 26 Jul 2022 22:35:21 +0000

Hello
What do you think. Is it necessary to buy ifi iematch 4.4 to ifi zen one signature + ifi zen signature can 6xx (use mostly with Gain 6dB on can 6xx) + sennheiser hd 660s (balanced cable) + audirvana (no software volume control)? Volume (in 660s) is too high (i think) already on 12 o’clock + “noise” on high (with Gain 12, 18 dB) and maximum (with Gain 6, 12, 18 dB) volume (hearing it while no music playing).

By: Alberto Pittaluga (Bologna, Italy)

Alberto Pittaluga (Bologna, Italy) — Sat, 09 Jul 2022 16:08:33 +0000

In reply to Gaurav Goel.

Hello to you
based on their spec sheet, your FH3 have a 24 ohm impedance, and a very high sensitivity at 114dB/mW.
The high sensitivity is no doubt the main origin of the unwanted hiss when paired on some sources.

IEMatch 4.4 at Ultra setting has an output impedance of 3.6 ohm. Using the 8X rule of thumb, 28.8 ohm should be the smallest impedance a driver should have to avoid skewance on its Frequency Response. That said, rules of thumb are… rules of thumb.. You can get skewage even at 12X dampening levels some times, and oppositely zero distorsion even at 4X.

On the other front, your FH3 is so sensitive that even adding a 24dB attenuation (the one connected with the Ultra setting) your Go Blu should still be able to power them appropriately.

My advice is to give IEMatch 4.4 a try. It “may” seriously work. If you possibly can, order it from an Amazon source so you have an easy back-off plan in case you find yourself into one of those “out of the thumb rule” situations.

By: Gaurav Goel

Gaurav Goel — Sat, 09 Jul 2022 12:10:44 +0000

Hello Sir, I have ifi Go Blu and FH3 IEM with FIIO LC RD 4.4 balanced cable. I feel hiss (sibilance) issue in many songs (not recording problem). As IEMATCH 4.4 has high output impedence , is it advisable to purchase it or it may not resolve my problem as it is intended to work with higher end DACs only?