It arrived here wed, but I just now had time to finally get it all set up. I took the A-500's out and they wont be going back in
Damn hum with those things I could not get rid of. I tried everything. Hook up another amp and its gone. I think those things are really designed to work with balanced inputs and not unbalanced. I may get the XPA 3 if I think I need the power but this thing is no slouch at all. It's a beefy receiver to be sure