I have a Pioneer HTIB 510, upgraded L/R w/Polk rt52i's. I'm upgrading on a budget so the upgrades aren't quite what I dream for, nor are they timely. Anyway, I decided to get a center channel for myself for Christmas. Not wanting to spend too much I ended up w/a Sony n495. This was such an improvement, made me remember why I want a good HT. Before I got it, I knew you should try and match the speakers but I didn't think it matter much w/what I've got. But while watching tv, it's real distinct which speaker the sound is coming from. I still have time to return the Sony and get a Polk to match my L/R. Originally, I was considering the csi20, but is that much improvement over the Sony n495? Now I'm leaning toward the csi30. Will this really help the transition as things move across the room? In the future I do intend to upgrade the front L/R and move the rti25's to the rear. Any input would be appreciated.