I also agree that with the size of the room you've got that the M-60's would be more ideal. I'd imagine that the M-80's in a room that size wouldn't have enough of a chance to breathe or "open up" to their full capability. I don't have the exact dimensions of my room, but I'm barely able to sit 10 feet back from my 60's, which is where I feel they sound best. I thought I had read that the 80's ideal sitting position was about 12 feet away, but maybe someone else could chime in on that. Alan?