I replaced my ATI 1505 (5x150) with an NHT Power5 (5x200 - ICE) and it runs significantly cooler with no strain in producting monsterous bass from my NHT 2.9's which are very inefficient. It is absolutely quiet with no coloration that I can hear at any point. I'm pretty happy with Class D...and since the NHT is now discontinued, I was able to get an irresistable deal here on Audiogon.
I can't comment on the Rotel....
I can't comment on the Rotel....