Thanks for the comments! I'm in a new delema...

I think I would enjoy a sub. I really have no room for one(I could fit one but don't have alot of options. I read that placing a sub can be tricky). I got alot more money for Xmas than I was expecting and I'm thinking about a pair of floor standing speakers, M40s, 50s, even the M60's.

Will I get better sound with the floor standing campared to the M3 and a Sub? What differences can expect between the 40s and 50s, and 50s-60s.

I realize this is a huge subject. I'm strictly a music listener(2 channel). I might someday convert to home theater-if I ever finish my basement. I would appreciate any insight or suggestions