I'm in a room your size and I'm using 3 M60s for my front speakers. If your budget will allow it, I wouldn't worry about your room being too small for M60s. In my room, they sound great. My seating position is approximately 7 feet from the speakers.

I hope this helps.


--------- NEC 42" Plasma Axiom M60s(x3)/QS4s/M22s Denon 3805/3910 Outlaw 7700 SVS PC-Ultra