I hooked the Hafler Trans Nova P3000 Pro Amp (150X2 8 ohm 200X2 @4 ohm )up to my Yamaha AVR this morning and I am HAPPY. No hum or any issues on Bluray movies, DISH TV etc . My rears and center sound much stronger now.....more reserve power now. Glad I took a chance on this amp for what I wanted it for. I figured if it had a hum etc I could sell on Ebay for a profit.