boltStrong power for high-impedance headphonesKey factorexpand_more0 mentions
Owners report the amp easily drives 250-300ohm headphones like the HD650/HD6XX and DT1770 with room to spare, and one user found it too powerful even for lower-impedance cans, needing -12dB gain.
Strongly positive
graphic_eqEffective, enjoyable bass boost (XBass)Key factorexpand_more0 mentions
Multiple commenters call the XBass function excellent and 'fun,' adding satisfying rumble and low-end punch that many say improves headphones like the LCD-X and 6XX without sounding artificial.
Strongly positive
cableSound upgrade with balanced connection and iPower supplyexpand_more0 mentions
Users note a clear improvement in detail and resolution when using a 4.4mm balanced interconnect between DAC and amp, and further gains when powered by iFi's iPower X supply instead of the stock adapter.
Strongly positive
music_noteSmooth, musical sound signatureexpand_more0 mentions
Several owners describe the amp's sound as smoother and more enjoyable than comparable Schiit stacks, with good synergy for Sennheiser HD650/6XX headphones.
Widely praised
support_agentReliable warranty supportexpand_more0 mentions
When a unit had a loose power button, iFi's warranty process was praised as fast and effective, providing a replacement via a local dealer.
Widely praised