Is the M3 good enough for mains in 14x20 feet room. Gonna have to go with bookshelfs and with WAF can't use floorstanders and on a budget. How much different is m22 from m3 since they have same freq response and I'll be using a sub.

Axiom M60s, VP150, QS8s, EP500 -- Rotel 1075 & 1068 -- Panasonic BDT500 -- Panasonic 60S60