By the Srafi,
the speakers in between your speakers and sofa have to go... I do fear that you'll need a few ceiling tiles, decent size rug in front of the sofa and on the wall behind, Not necessarily in the center, but toward the corners, you'll need some sort of soft material... curtain or rugs hanging. You might be seeing that we are somewhat dealing with the room as well as a decent placement. I hope all of this makes sense, its not always easy to get the point across on a forum like this.
Tim