My first post-
I recently have come down with a case of upgraditus. I have replaced all 6 channels with axiom units.

M22 mains
vp100
qs4 surrounds

I am quite pleased with the front setup but the qs4's (2 side, and 1 center) have not blown me away. The living room is 18' wide by 12' deep. Our couch sits against the back wall which is open on either side leading to the kitchen and hall. The qs4's sides are mounted directly to the sides of the couch on the walls
which are 5' from the couch, and about 2' above listening level with t-brackets. The center surround is directly behind us on the wall. I can't help but think some of the effects are being bounced into the kitchen and hall way. would the qs8's do a better job, or should I try some direct radiating units like the m2's for my side surrounds?

Also, my sub is an Infinity PS28 (8") which puts out plenty of bass in my opinion for this small room. what improvements would I notice from a Hsu, Axiom, or SVS sub? bass is bass- right?

Thanks for your advice.