I have a Krell 300S into a P1200 @ 220V, and 2-250a/3's into a P600 for surround channels only. My surrounds are not pushed as hard as a front 2 channel. Of course I can trip the power on either one, but if I listened at that level I might as well own a mass market system because my ears would be shot. I have stated before in these forums that my all Krell (KRC-HR, 300S, KPS20i) is less fatiguing and more musical/enjoyable to listen to which is what this hobby is all about in the first place. I do plug the power plants into their own dedicated outlets also. If you were curious enough you could get a P600 for a 30 day trial and also ask Paul @ PS Audio about the power consumption. Good luck and keep enjoying the music!!!!!