Eliminate background hiss, EMI and source mismatches with the iEMatch from iFi

A Review On: iFi Audio iEMatch Headphone Travel Accessory

iFi Audio iEMatch Headphone Travel Accessory

Rated # 43 in Headphone Cables
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Hisoundfi
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Pros: Eliminates the need to own several impedance adapters, Runs inline with sources and earphones, Incredibly smart design, Easy to use

Cons: No adapter for 2.5 mm balanced TRRS

As the rabbit hole of summit-fi in-ear monitors gets deeper and deeper, I find myself encountering the same issues over and over. Most of the high end multiple armature driver in-ear monitors in today’s market are incredibly sensitive. What happens as a result is many of these earphones have a background hiss or will pick up digital noise. It can get really annoying, especially when trying to use an earphone of this type (or any other sensitive earphone for that matter) with our favorite portable sources like DAPs, and portable DAC/Amplifiers. If we are going to shell out large amounts of cash on a high end earphone, we don’t want to be burdened by background noise, right?

 

One of the ways to address this is with impedance adapters. Different adapters are currently sold in various impedances. Although it does help (and basically does what I’m about to cover in this review) there are drawbacks to this. First and foremost, when dealing with different impedances, the sound of our favorite in-ear monitors can change with the impedance adapter used. Second, different impedance adapters can not only impact the sound differently, it ends up being a specialized case for many of our earphone and source matchups. This means that people with several sources and earphones need to own and use several different impedance adapters.

 

 

I personally lean towards simplicity in my audio chain. I see some of the rigs on Head-Fi and shake my head at some of the portable set-ups I see. In my opinion, if you need a wheelbarrow or backpack for your portable rig I don’t consider it portable.The less stuff you have to stuff in my pocket the better. That includes impedance adapters. The folks at iFi have recognized the issue and brought to market a device that makes a lot of sense. Introducing the iEMatch from iFi.

 

 

The package contains a velvet carrying case that is big enough to hold your iEMatch, the included airline jack and earplugs, and possibly a pair or two of in-ear monitors (not included).

 

The iEMatch is not some revolutionary technological advancement, but I find it to be a great companion for earphone enthusiasts like myself. It’s an inline chain that eliminates the need to use various impedance adapters.

 

Have a sensitive pair of earphones that picks up background noise from whatever source you want to use them with? Its as easy as plugging the device into your source’s jack and using it as a bridge from the source to your earphone, then using the switches to dial in the type of source you’re using, and resistance needed to use your earphone without signal noise.

 

iEMatch has two switches. The first one is to adjust from High sensitivity to Ultra sensitivity (pretty self explanatory). I’m happy to say that the iEMatch was able to address issues with EVERY pair of in-ear monitor and portable source I used. With the iEMatch, picking out a source and earphone has become a much easier task. I can grab what I want to use for the day and go. As long as I have the iEMatch, the issues of background hiss and EMI are eliminated. Just for the record, the ieMatch also works with most desktop rigs as well. Most importantly, the iEMatch didn't significantly alter the sound like some impracticly applied impedance adapters do. With the flip of a switch I can dial it in and find the right setting to eliminate signal noise without significantly altering the sound of my sensitive earphones.

 

The other switch is to switch the jack (that plugs into the source) from 3.5mm balanced TRRS to standard 3.5 mm TRS. That’s right, you can use your earphone with a 3.5 mm balanced source. While I find this to be a nice touch, I wish iFi would have figured out a way to also use the device with a 2.5 mm balanced jack as well. As it stands, a majority of sources in today’s market uses 2.5 mm balanced TRRS as opposed to the 3.5 mm TRRS application.

 

The iEMatch can be purchased on Amazon market for $49 USD. While it does come in at a higher price than a few impedance adapters, this is a convenient product that will be a must have for those of us who have several in-ear monitors. I have already mentioned this device in several reviews. It addresses one of the main gripes people have for sensitive earphones. Many TOTL earphone manufacturers are already including them with the sale of their low impedance earphones. Here is a link for more information and purchase:

 

https://www.amazon.com/Audio-iEMatch-Headphone-Travel-Accessory/dp/B01L4CPF7U/ref=sr_1_1?ie=UTF8&qid=1481062648&sr=8-1&keywords=iematch

 

Thanks for reading and happy listening!

Fiio X7, AM3 Amplifier Module, iFi iEMatch, Noble K10E Encore Universal

8 Comments:

Great review of a needed product. Didn't know impedance matching adapters existed in the earphone world. Thanks for the info.
My question is, does this increase impedance enough to trigger High Impedance mode on the LG v20. If so, I'm all over this. 
I have a V10. I'll check this evening and let you know
Good and detailed and useful review. Tried it and though I don't use iems if I did I would get this surely.
I am also curious about V10 impedance triggering. Thanks for the great review mate @Hisoundfi  :)
Hey Baybars, the V10 recognizes the ieMatch as a "normal" impedance device. Even with high impedance earphones linked in the audio chain the V10 recognizes the ieMatch as low normal aka low impedance.
I noticed you made a distinction between this and "regular" impedance adapters. Is there a different technology used, to show that it doesn't alter BA drivers like impedance adapters do, or is it just your ear?
It changes the impedance, so there is minor differences in sound with multi-armature earphones, just like an impedance adapter. The difference is that it isn't as significant because there are options to change the impedance with the switch on the ieMatch. You can dial it in easier than owning and swapping out a different adapter