If you can still contact Axiom and work out the details, my vote is also for the m80's, ooops, I mean m60's.

My HT/Recroom is 900 Sq Ft and I owned 60's for 2 years, they did a fabulous job and would have more overall bass/detail than the m50s. I currently own m80's and they are a notch better than the 60's.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85