I agree with John. If you have a wall to the left of your seating area, then the better placement would be on the side walls, slightly in front of the listening area.
From the Axiom FAQ:
"Ideally, surround speakers should be either wall-mounted or stand-mounted to either side of the couch or primary listening area, from one to six feet higher than seated listeners' ears, and slightly forward or rearwards of the listening area if you wish. Axiom's Quadpolar surrounds are especially versatile and can yield excellent performance with stand or wall-mounting to the rear as well as at side locations. (see our dedicated stands for the QS Surround speakers in the Store)."
If you don't have a wall on the left, then ceiling mounting them in roughly the same positions would be next. If that's not possible, I'd think placing them on the back wall to either side of the listening area would work OK.
