[tonyvdb]

Re: rear surround placement

Are you doing a 5.1 or 7.1 speaker setup?

If 5.1 the rear speakers can be placed on either the side walls or the rear walls (your choice) if placing on the side walls you want them to be directly beside where you sit on either side of the room.
If you place them on the rear walls then they need to be at least 4' apart and like Jason said at least 2' behind where you sit.

 

[tonyvdb]

Re: rear surround placement

Since they will be ceiling mounted and there is plenty of space behind the seating going 2-3 feet back is no problem. Wasn't sure if I should go any further back than that...or if they should angle down towards the seating. It seems that letting them fire straight ahead would cause reflections off the front wall.

You want them to fire somewhat at the listening area but not directly at your ears.