I should have checked more discussion threads first, as it seems to have happened to many others. This is more of a power problem called "ground loop", mainly arising from Cable TV signals and improper grounding of household circuits.

http://www.smr-home-theatre.org/Ground-Loops/

I talked to the Outlaw guys this morning and they refered me to page 14 of the 750 manual on how to debug this issue.

I would still like to find out about the schematic of the capacitors on the 1050.

Outlaw rocks, so don't get the wrong impression!