I have been using Denon 3803 and Axiom's Epic 80 since November and I am happy with it. I watch 2 or 3 movies consecutively on week ends or listen to 2 hours of music continuously and the receiver has no problem powering the 4 ohm speakers. It gets warm but not hot and I have not experienced the circuit protection failure that some people talk about with other receivers.

I prefer M80 over Klipsch for the same reason Alan and Sushi mentioned.