I read about the problems with A4000 audio. I have some troubles. Overall all channels work but some sounds are distorted. But not always; just with some tracks.
Also I can''t see any leaking capacitors...
For example the T2 soundtrack and sound from movie files on the AOS3.9 cd.
I have two test mp3 files here that give you an impression:
http://freepgs.com/flashlab/Does anyone here know if this is a power problem or caps problem?