I'm not a Denon owner but from what I've read, that AVR should power the 60s or 80s without any issues. I've got an older H/K AVR635 that's rated at 75 watts and it will and has driven my 80s to some very loud levels for long periods of time without a hitch, although I do have a Rotel amp pre-outed from the AVR to power the 80s ... an option your Denon doesn't seem to have?

Rick
Our Room

smile