i have the same size room 13x19x10 and went with the M60's. My purchase was also driven by the fact I have a Sony ES5300 and isn't recommened by Axiom for the M80's since they're 4ohm. I'm blown away by my speakers...incredible clarity, very neutral, just absolutely love them. I'm sure some will say that the M80's are better (sure they are). But paired with my HSU 3.3 sub I'm more than covered for the bass. Couldn't be happier with my purchase.