I'm using a used HK AVR-320 I bought from a member here about 2 1/2 years ago. I'm using it with M60s, QS8s and a VP150. It has more than enough power for my 21'x17'room thats open on one wall to the rest of the house.

At 55w per channel on paper it doesn't sound like enough but I have to tell you it plays loud and sounds great.

Getting to 2,000 posts; one year at a time vp160/qs8/qs4/SVS 2000/m60/Monolith 3x200 amp