Hello everyone here at Sansuii..I have this Sansuii Quad rear amplifier model number QS 500. I have been using it to drive a subwoofer (just low levels) . Could you provide me with Information as to its output power. Also it seems only two of the channels are working and I havent gone into any serious investigation as to why...are parts still available considering its age? Thanks for any replies..paulram

I have one of these, 33w/ch continuous at 8ohnm.

Here's a link to free scan of the owner's manual:
http://www.1stintunes.com/vpasp/xdesc/37697/html/1.htm