I've got my M80s in 2 channel and my Denon 2809 rated at 115w per channel can play well beyond "comfortable" levels. Found that out the hard way...the volume dial on the 2809 is a nice finely graduated dial, takes a few turns to dial in some volume. First time I used the remote I was expecting the same kind of graduated (slow) volume increase when I hit the "+" on the remote. Whoahhh!

Half of communication is listening. You can't listen with your mouth.