I've had the Polk Audio CSI A6 Center Speaker as part of my Home Theater room for 5 years now. It's matched up to a pair of RTiA5 Fronts. I suppose they are timbre matching since they are the same series and same 6.5"/1" Woofer/Tweeter sizes.
I'm starting to notice some of the dialog is not as clear as I would like. It's probably age related hearing loss. Anyway, I'm looking for a center that would provide even more clarity for dialog but still be a good match to the RTiA5 Fronts. I was thinking about getting the Infinity Primus PC351 because it is a 3 way speaker with 5.25"/3"/.75" for low/mid/high range frequencies. Would this be a better speaker than the Polk CSI A6?
By the way, my receiver is an Onkyo TX-SA-705 100w per Channel. I'm thinking about upgrading to an Onkyo TX-NR717 at 110w per channel. Not sure of the extra 10 watss will actually make any noticeable difference.