I'm teetering between getting either M60s or M80s. My room will be 20.2 x 12.1 with a 7 foot ceiling and my current amp is a Yammy 1300. I'm sure the M60's would be more than fine, but if the system / room dimensions can handle a pair of M80's I figure I might as well go all the way, since I'm sure they sound remarkable in the proper environment. The question then is, would this environment be proper?

Any advice would be supremely appreicated!