How does this amp compare to say audio-gd products? I am very much interested in audio-gd NFB-1? I have a Oppo 105D, and the headphone amp is not that powerful. I am expecting my order of 6XX delivered soon :) Or, should i stop worrying about integrating it to my 105D and get a R2R 11...

Found a strange bug, when listening while charging with the new firmware, if i pause and come back, now playing does not take me to where i left off.   Can anyone check and confirm this please?     What i observed is the battery life seem to have increased with the new firmware.

  I too have faced this and when i wrote to FIIO and asked if X52ndgen is better in this regard, and their answer was 'No'.   Has anyone personally compared side by side? Please? I have my return window closing in 10 days.

I was blessed with my first blue screen today.   The X3 was in pause and was charging, with the new beta firmware.

Hi,   Thanks for making a great product, and i am enjoying and finding features/interface, which are better than my Oppo 105!   I haven't tried this beta firmware update yet, but was wondering if the volume control for line out and headphone out can be separated. As of now, i use 120 for...