I have a room similar to your dimensions with a vaulted ceiling and kitchen off to the side. I currently have the M22’s, VP150, QS8's, M2's, SVS PB1 sub in a 7.1 setup and all connected to an Onkyo TX-NR900 receiver. I use this setup for 70% home theater and 30% music (some DVD-A). I love the sound and clarity from the Axiom's and they do not have a problem filling my room with sound. I recently got the upgrade bug and will be getting the M60's within the next week to replace my M22's so I can get even more out of the room.
