Tried to solve the problem with a grounding wire from the aux-in shield to empeg sled (Creative DAP Jukebox on batteries).. It does something, you can hear it, but the distortion is still there... I think I have to send the unit in for letting support take a look at it.

Edwin de Vaan
mk2 rev.7 # 080000263 (queue 1232) 6+20Gb blue/red