I know, before you start knocking it, a friend of mine could not care less about sound quality, got this unit for real cheap (DD Receiver & five speakers). I went to his home, hooked it all up and there is no sound. I am very experienced with HT, but just could not get sound, even from the tuner. There are no manuals with the unit, but something that strikes me as odd is there are little symbols on the side of the display which have the icons of the speaker outlay (which ones are on according to the DSP), and the fronts are constantly flashing, which leads me to believe there might have been a protect circuit interrupted or something, I would imagine they should just stay solid if there is a signal...ANY IDEAS??