h1f1add1cted
1000+ Head-Fier
Short summary of my brief testing from the last days listening at different type of headphones and IEMs, all done with 3.5mm TRRS balanced wiring.
Pros:
- Very powerful output (as example Sennheiser HD 800 | 300 ohm @ 102dB sensitivity @ 9:30 to 10 o'clock already loud, Fostex T50RP | 50 ohm @ 92dB sensitivity @ 11:30 to 12 o'clock already loud)
- Great build quality (as iFi usual)
- Seems to have BC1.2 quick charging support, because just ~ 2 hours for full charge using my BC1.2 charger, I'm wonder why this is not mentioned in technical details
- Black background, almost zero hiss (very sensitive IEMs @ iEMatch only slight hiss at unhealthy high volume setting, normal volume no audibile hiss) using an 12 driver IEM as "hiss detector"
- Excellent sound quality (using minimum phase digital filter setting) comparing to a two times more expensive device like Chord Mojo for example
- Decent battery life (~ 8 hours @ 16/44.1 FLAC using 300 ohms Sennheiser HD 800 headphones)
Cons:
- iEMatch output still too powerful output for very sensitive IEMs
- Analogue volume control not fine enough for low volume listening with channel imbalance
The last two cons can be easily fixed using external iEMatch adaptor, with additional benefit to lower output impedance to < 1 ohms for the non-direct output:


Would iEMatch @ Ultra setting with -24 dB damping and < 1 ohms output impedance already built-in, it would be absolute perfect, I can live using the iEMatch adaptor, but it's still addtional costs and a bit more bulky.

Pros:
- Very powerful output (as example Sennheiser HD 800 | 300 ohm @ 102dB sensitivity @ 9:30 to 10 o'clock already loud, Fostex T50RP | 50 ohm @ 92dB sensitivity @ 11:30 to 12 o'clock already loud)
- Great build quality (as iFi usual)
- Seems to have BC1.2 quick charging support, because just ~ 2 hours for full charge using my BC1.2 charger, I'm wonder why this is not mentioned in technical details
- Black background, almost zero hiss (very sensitive IEMs @ iEMatch only slight hiss at unhealthy high volume setting, normal volume no audibile hiss) using an 12 driver IEM as "hiss detector"
- Excellent sound quality (using minimum phase digital filter setting) comparing to a two times more expensive device like Chord Mojo for example
- Decent battery life (~ 8 hours @ 16/44.1 FLAC using 300 ohms Sennheiser HD 800 headphones)
Cons:
- iEMatch output still too powerful output for very sensitive IEMs
- Analogue volume control not fine enough for low volume listening with channel imbalance
The last two cons can be easily fixed using external iEMatch adaptor, with additional benefit to lower output impedance to < 1 ohms for the non-direct output:


Would iEMatch @ Ultra setting with -24 dB damping and < 1 ohms output impedance already built-in, it would be absolute perfect, I can live using the iEMatch adaptor, but it's still addtional costs and a bit more bulky.

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