I put an SR500 in for my father. It did well. He ordered it from jandr.com and they pricematched lowest on the net. It did get rather warm with the 6 ohm speakers, so I would stick with 8 ohm speakers. I put my axioms (vp150 and qs8) up against his JBL studio monitors and thought the axioms were worlds better, but the onkyo does have decent power. Hope this helps..