I'm running an M3 with a sub. It's actually in my son's room and I went that way to play to his type of music (classic rock). It sounds a bit "heavy", but works very well in that context (he's very happy with it). If I were looking for the classic neutral Axiom sound I'd go with the M2. I should mention that I don't have the M2, but I have the M22, so I'm using those for my comparison.