iEMatch+ 3.5mm Male to Female Headphone Jack in-Ear-Monitor Audio/Optimizer/Attenuator

Absolutely love this product for reducing the noise floor when I'm using my IEM system. I'm still a beginner and I just can't stand the constant white noise that comes through my IEM system. I would rate this product a 4.5 stars because of it's durability but I think 5 star is fair for what it does and it being able to solve my problems. I bought 1 and been using it for about 1.5 year now both on and off. Now it's no longer working properly because I use it primarily on my IEM receiver which is attached to my body. All the moving, jumping, and bouncing around has caused the wires to come loose and the sound is no longer coming through clearly. It's still a great product and it's basically the only one of it's kind design wise. I can chalk it up the damage to me not using it as designed and/or other preventable measures that I could have taken to prevent/lessen the strain on the cable on the iFi iEMatch+. I will be getting a 2nd one and making sure to take better preventative measures to not allow the same issues to come through. I hope that iFi would made a 2nd generation of this product with increased durability.

I always had a hiss on my line out while using in ear monitors. I added this to the line and now it is blissful silence and sweet tunes. It has been working great for about a month and hope for many more in listening enjoyment.

First of all, I purchased this item in order to tame a little high frequency grunge that my LG V-20s produce when they feed Drop’s e-mu little purple heart wood headphones. But alas, the iFi iEmatch is an attenuator and so the volume suffered on the PH woodies. There was some satisfaction when I connected the iEmatch+ to an Atom Pro usb-c dongle connected to a 2019 iPad Pro. The sound was absolutely pristine using Qobuz as a source, but it still had a hard ceiling in terms of volume. However if that was the end of the story, as Paul Harvey used to say, I would’ve been quite happy to have kept the iEmatch+ as a simple answer to lower late night listening. But I have two other components that I purchased here on Amazon a few years ago, a Meridian Explorer2 USB DAC and the Oppo PM-3 planar magnetic headphones. The Meridian DAC sounds great when connected to a dedicated amp but its headphone out was always too shrill for me. The PM-3s never satisfied me either because of the same reason. I must be real sensitive to high frequency artifacts or something. Anyway, neither has received any playing time in several years. For me, it’s been the LG V20s and the little purple cans that can exclusively since late 2016. So, I do not know what in the world possessed me to take the Meridian DAC, connected to a 12 year old MacBook Pro running Audirvana software, and then to insert the iEmatch+ to the heretofore unsatisfactory headphone out of the Meridian DAC, and then from there to connect the PM-3s. Probably just sheer proximity as they were in the same room. But this combo caused the hair on my arms to stand straight up. I hear magic from the Meridian/iEmatch+/PM-3 combination. And it’s not just one or two genres. It’s everything. I’ve been using Hi-Rez files from disk, Master tracks from Tidal, and Hi-Rez from Qobuz. Just WOW. I started with Fleetwood Mac’s Rumors and it just rocked my boat. Since then I’ve gone back years on Qobuz and songs that were etched in my mind but never sounded right on digital sang again sending me into bliss. My wife’s jaw hit the floor when I played her Nillson’s Coconut. Clear as a bell. Almost LP like. Incredible combo. I never expected much from the iEmatch+, but I regained so so much that I had discarded. Now the old laptop is back downstairs and using the Audirvana remote app on my iPad, I just call the tune and smile smile smile. I don’t know if you have some great gear, just lying around, that always sounded too bright for you. But I guarantee you that at this price the iFi iEmatch+ is a versatile performer and I’ll just bet it will help you find magic in that most special of places. That Closet of What You Already Have. HIGHLY RECOMMENDED!!!

Large class A headphone amplifier with annoyingly high noise floor when used low impedance headphones and iems. The noise floor is reduced to noiticable, but acceptable on the low setting and to dead silent on the high setting. The amp has a 100 step digital volume control. Without the Ifi, using 16 ohm iems, comfortable listening was at about 16-20. With the ifi on the low setting, comfortable listening is about 30-35. On the high setting the same comfortable level is about 60. I can never go without it from this point on.

I purchased to help with a 60 cycle hum on an IEM headphone. The product itself is very well made. It does allow you control the input in a couple ways. This however, did not solve my issue, so for me it was money wasted. The Unit was not inexpensive, but was higher quality. For someone who needs this for some reason, it is nicely made.

I’ve been using my Ultimate Ears UE 18 IEM’s (In-Ear Monitors) for years. But every time I use them with a Sennheiser EK IEM G4 receiver (body pack), the hiss is very loud, which I’ve now learned is due to the low impedance of the UE 18’s. (10 ohms) If I try a set of higher impedance monitors or headphones (like the 63 ohm Sony MDR-7506) with that receiver, there is no hiss. Now I put the iEMatch+ (set to Ultra) between the monitors and the receiver, and the hiss is gone! The volume control on the receiver also has a much finer range of adjustment, which makes it a lot easier to set just the right level, and the sound quality is identical to how the monitors sound normally, except there’s no hiss. I’m extremely happy with the iEMatch+. I wish I would have discovered this little gem sooner. Lastly, I found that the Maxpedition 0112K pouch (pictured) is the perfect belt pack pouch. There’s a little flap that holds the iEMatch+ output port snuggly while performing.

Does the job of adjusting the output and load impedance, but unfortunately the impact on sound quality is quite audible. The music's overall dynamics takes a hit. If you can live with that, this is a great tool.

Tengo cascos Kz zs10 pro X; el problema de éstos cascos es que tienen un pitido de fondo sin tener nada de sonido, que resulta molesto. Lo compré porque decian que quitaba ese sonido…y si; lo quita…por eso tiene 2 estrellas. PERO hace que pierda por completo la calidad del audio, bajando como el triple en general…y toda la definición de sonido… Asi que prefiero tener el chirrido de fondo (que con musica no se aprecia)…que, a que me baje la calidad general del audio que quiero…por lo tanto no cumple las expectativas para nada….una pena :(

Consigliato per chi riscontra problemi di fruscio tra ricevitore e trasmettitore Sennheiser G4. Sopratutto se si utilizzano In-ear custom made a bassa impedenza.

Wirklich positiv überrascht, ich habe nicht damit gerechnet, dass sich mein Problem mit den Hintergrundgeräuschen damit lösen lassen. Top! Zur Info der Verwendung IEM's sind an einem GOXLR Mini angeschlossen und der Kopfhörerausgang vorne am gerät ist bei mir mit IEM's kaum nutzbar auf Grund der hohen Hintergrundgeräusche bzw. whitenoise. Mit anderen Kopfhörern wie den Sennheiser HD 650 war das kein Problem. Als Notlösung wurde vorerst über Line Out an ein Receiver angeschlossen und die IEM's dann an den Receiver, das ging auch Problemlos. Ist aber natürlich sind so einfach und Problemfrei wie mit dem iEMatch.

Before I explained why I like this gadget, let me first go through my initial scepticism about iFi’s concept of IEMatch. Such scepticism has now been dispelled. My iFi Gryphon has built in IEMatch, so I tried it out. It seems to have added some resistors to the output power so that on my Shure SE826 (9 ohms) I need to turn up the volume control to 100%. If IEMatch is off, I needed to turn down to 86%. For my Astell & Kern AK T8 (16 ohms), it is 97%/86%; on my Aurisonics ASG2.5 (41 ohms with built-in 22db noise attenuator), the control has to be turned to turbo (more than 100%) before it is loud enough. (The results are similar either on Apple Music or on dff or dsf files, all playing through my android phone.) I do agree with one other reviewer that when IEMatch on my Gryphon switched off, the low is boomy (monotonous) and the mid is exaggerated (irritating) but how do I know if this is not just their marketing trick: make it sound less ideal when IEMatch is off so that people think IEMatch works. After all, before I got my Gryphon, I have been listening via these IE headphones on my AK240 with 2/3 volume and do not have a problem. Then my legacy Grado RA1 headphone amplifier came into the picture. Connected to the AK240 and Grado RS1 (32 ohms), the volume is deafeningly loud if the volume control is turned beyond the 9 o’clock position (AK240 in line-out mode). If turning the volume control of AK240 down and the RA1 up, the low is lost and the mid is too bright. So I bought this gadget to dampen the output of my AK240. The result? I give the gadget 5-star because it allows my legacy Grado to pair with HiRes players instead of just CD players. I can now play my RA1 with output control at 9-12 o’clock and gives very pleasant sound. My Aurisonics ASG2.5 (41 ohms) has been OK with my iFi Go Blu. Unlike the Gryphon, it does not have IEMatch built-in, so the volume control needs to stay below 80% or the sound will become irritating. And so I thought Go Blu can only give OK but not good sound. Adding this gadget? I again agree with the other reviewer who said “the entire presentation became coherent with instrument separation, transparency, details (no sibilance or harshness in the top end) and a punchy bass.” Is this gadget for you? If the sound levels change excessively when your device’s analogue volume control barely turns, this gadget should help. For devices with digital volume control, my AK240 does not need it but my Go Blu performs very well on my Aurisonics 41-ohm headphones. It also sounds different on my Shure and A&K but not as significant as the Aurisonics. Anyway, if you find your mobile set up does not sound good when turning the volume control up, do not blame them until you have tried this output impedance attenuator.

This product works the way it promises to do. Reduces the noise floor and impedence while not changing the frequency response. Quite expensive though.