What the $^&# heck is it?.........iFi iEMatch!

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  1. iFi audio
    Oops, double.

    On the other hand we can use this space to say that iGalvanic3.0 arrives on the 25th of August!
     
    Last edited: Aug 8, 2017
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  2. Painterspal
    I have to say I'm extremely impressed with this little product. It's completely transformed the performance of two of my portable amps with low impedance IEMs - it basically does exactly what it's supposed to do. I was hopeful that it would do the trick with my Fostex HP-V1 hybrid tube amp and it duly did, banishing background hiss almost completely with my Westone W60s and Noble Kaiser Encores. What I didn't expect was the impact on my solid state Oppo HA2, which I'd actually planned to sell. Instead, my impression of this amp is completely changed and, combined with the iEMatch and the Nobles, its simply become a world beater. I've been using a Questyle QP1R as the source and I actually prefer the sound through the Oppo to the built in amp - it really is that good. Without the iEMatch I find the Oppo almost unusable with sensitive IEMs but whatever the weird aural alchemy going on inside ifi's little gadget, it's created a truly amazing synergy with the Oppo, particularly on the high gain setting. I can only urge you to try it.
     
    audionewbi likes this.
  3. iFi audio
    Much appreciated for your kind words!
     
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  4. ultimdan
    Hey guys,
    Do you think that product would help using low impedance headphones with OTL tube amp? Or would it still color the sound too much?

    Regards,

    Dan
     
  5. audionewbi
    It is the only impedance adaptor I came across which to my ears doesn't alter the sound.
     
  6. ultimdan
    Oh god, I'm ordering ASAP then. Thanks!
     
  7. iFi audio
    Hi Dan

    No. OTL Tube Amplifiers simply are not suited to driving low impedance headphones.

    The iEMatch presents an appx. 16 Ohm load to the driving Amp, this is not suitable for any OTL Tube Amplifier.

    The only solution to use an OTL Tube Amp with low impedance headphones is called "Transformer". A custom made 600 Ohm to 16 Ohm Transformer would be needed.

    This will correctly match the high impedance from the OTL Tube Headphone Amplifier to the low impedance of the Headphone. Of course, after that it is no longer "OTL" but WOT (With Output Transformer).

    I hope that this answers your questions.

    Best wishes

    iFi audio Team
     
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  8. ultimdan
    Yes, that answer my question really well. Thanks a lot for your time. I'm still considering this or the headphone buddy to have more volume knob range available for my low impedance headphones on my SS amps. Would it work great, or is it only for iem?
     
  9. iFi audio
    Hi Dan

    It works for all headphones that are too sensitive, it's just that with IEM's the problems tend to be very pronounced. A fair few customers also use iEMatch with full size headphones.

    I hope that this answers your query.

    Best wishes

    iFi audio Team
     
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  10. sha007
    Hi. can i use the iematch with the sennheiser hd 700? I hear sibilance on this headphone.
     
  11. Bansaku
    While you can absolutely use the IEMatch with the Sennheiser HD 700, it will do absolutely nothing in regards to sibilance. The IEMatch will not alter the frequency response or sound signature of a headphones as it is not it's purpose nor design. Amplifier hiss and driver sensitivity has nothing to do with sibilance on the HD 700. All the IEMatch does is reduce noise and improve dynamics. You best bet is to purchase a 3rd party OCC cable.
     
  12. bartzky
    Okay, I know I'm super petty now, but in some cases it will alter the frequency response. Or to be more precise: In most cases it will restore the original frequency response if it was altered by a higher output impedance of the original source. That's only true if the output impedance changes significantly (normally to the lower) by adding an iEMatch and will only be relevant if the headphones are somewhat picky in that regard.

    Of course @Bansaku is absolutely right and the HD700 will not become less sibilant with an iEMatch.
     
    Last edited: Sep 23, 2017
    willowbrook likes this.
  13. willowbrook
    Definitely will alter the frequency if the IEM/headphone is sensitive to impedance change. It may also compress the sound a bit and sound closed in. I've used the IEMatch for a long time, but I don't anymore.
     
  14. psikey
    Still using my IEMatch with my SE846's.

    I can use them with any source without hearing background hiss and to my ears, do not degrade sound in any way. Sounds better actually.

    If I use my SE846's with my Dragonfly Red in PC I often have to have volume at only 6% leaving no room for alteration. At anything over 12% I'd nearly blow my eardrums out!! With the IEMatch on "High" I can now be at 25% or on "Ultra" around 40% leading to more adjustable volume control.
     
    Last edited: Dec 21, 2017
  15. iFi audio
    Good to know that it works for you!
     
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