Looks like a good system. I have read many posts on The Outlaw Saloon about their amps and pre/pro units. Axiom and Outlaw use the same business model. The 7700 amp is made by ATI for Outlaw. It should be OK for the size of your room.

4 M80s/VP150/EP600/Denon AVR-5308 & DVD-2910/
2 QSC SRA3622(1100wattsX2)/Carvin 1800HD(600wattsX2)