arachide,
I have not had the pleasure of matching Outlaw with Axiom, however it is currently very high on my list.
Please let us know how well your Outlaw performs with them, and if you have compared it to similar products like Denon, Onkyo, Yamaha, what your impressions are.
I would set all speakers to small, crossed over at 80 hz. This will eliminate directional bass coming from your subwoofer and will let your speakers play the high's and mid's.
The room you have is slightly small. I believe your set up will play fairly loudly when you crank it up.
happy listening!
