I see a lot of these Adcom GFA-555 amps available on Ebay. Is there a problem with this model? Is there some reason why everyone seems to be looking to sell theirs?
I have heard good things about Adcom and I am in the market for a 2 channel amp around 200w/ch. I would like to bid on one of these but not if they have a history of problems. Has anyone here owned one of these, or heard any news?

Thanks