I've purchased two pairs of RTiA1s from the Polk store and am looking to complete the setup with a matching center channel. I read in the forum that the CSiA4 are a good match for this. I was actually considering the CSi5, which was on a good deal on ebay, but am not sure if they mix well with A1s.
Can you please share your thoughts as to which all options I have? My budget is rather limited (around 350$) and I dont mind second-hand.