New Setup couple of q's?

iliksprite
iliksprite Posts: 1
So i have a prewired house for a 5.1 surround system, I decided to go with the cleaner look and get in ceiling speakers for the fronts and backs all RC80i speakers, for a subwoofer ended up with the psw111 and a onkyo tx sr507 (thinking i might upgrade though)

now for centers I have a choice between a csi5 or a csi a4 and am really not to sure which to use. Space is not really a issue cause i would have to adjust my setup either way.

Was just wondering if there was a better center to go with to match the rc seires in ceilings, or if im going to have any trouble with the current setup

your help is appreciated