I'm setting up a 5.1 home theater system and am about to buy a set of axiom speakers. I will be putting a pair of QS8's on the side walls. I've read that these should be on the side walls 0 - 1 foot behind the listener. I can't really do that because of a side window. The location I'm looking at right now is still on the side walls, but are about 3 feet behind the listener and about 6 inches below the ceiling. Is this a good enough location for 5.1 surrounds?