You should definitely get flatter response with M2 vs M3 if using a subwoofer. That said, it's possible the M3s might be able to play more loudly if that is a factor.

M2s with a 100 Hz crossover can do a pretty impressive job though.

Last edited by bridgman; 09/09/11 10:39 PM.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8