Using them with the 1Plus2 I'd still give the nod to the AK120. But it is hard to justify the AK120s MSRP pricing when the Fiio hits pretty high for its asking price. Both have good UIs but the Fiio is more polished overall. The AK120 has a more polished finish and looks to be of higher quality (I'd sure hope so @ its price...).
1/26/14 at 11:00am