Hi kcarlile. Do you know if there is any way to tell which is damaged (in a simple easy way, of course)? Would be an expensive risk if I can't quite find out. But you can probably tell, had this not happened, my big purchase this spring was going to be that very amp. Sure hate it when trouble comes! Do y'all think my denon problem is the exception given its problems? I wouldn't mind maybe even trying to find the same unit again used or even step up to the wireless one above it in the line if discounted somewhere. It was difficult to initially set up, but as I said, I really like the sound. Okay - again my thanks.