I would recommend a few things. Try if possible to spread out your surrounds wider in the room, they are to close to the couch. I also would say to get qs8's or Qs4's for surrounds. They are designed to be for the surround effect purpose and easily out perform bookshelf speakers.
I would also consider your center placement. I know your limited, but you don't want it off center. For best experience it needs to be dead center and equal distance from the left/right speakers. Can you mount it on the wall, or set it on a shelf in front of the tv?
If you order from Axiom's factory outlet, you will save 10%, just an fyi.
