How far apart generally should the QS-8 surrounds be, and how high off the ground? I'm having them rear-wall mounted. There will be a rather large 3 person couch either against the wall or a couple of feet from it. The t.v. will be on the opposite wall about 17 feet away.

My ceilings are about 9 feet high.


------- Saint Harman Kardon AVR-120,Axiom VP100,Axiom M22Ti, Axiom QS8, Axiom EP-175