Today my new amp(s) come in so I can turn my Onkyo 797 into a pre/pro. I will be using a AMC 2n100-5 and a Carver AV 405 for the rears. My set-up by August will be. Mains RF-7 Center RC-7 Surrounds KLF-20 Rear RC-3 I also have a pair of RF-3's (left over after adding the RF-7's). Should I place these at the rear's or trade them in on the RF-7s and purchase one more RC-3? How much sound is actually filtered to the rear channel? I also have a room size issue as this room is 16 x 14. I have heard that a center channel speaker with two drivers utilize basically one driver and passively uses the second for bass. Is this also true in the rear as this is a crossover issue? If this is true I can only assume that the RF-3s would sound MUCH better. I would also consider trading the RF-3's in for the RB-5 II's as I think they sound great with a small footprint. Any help is appreciated .