Well I have been using the speakers from my old panosonic htib as my rear surrounds but now Im looking for somehting different. I have a pair of r50's and a csi25 for my LCR. I know that they surrounds dont need to be the same brand but I'd like to try to keep them polk if at all possible but if there is a good deal on something else I'm on board for that too. Looking to spend $75 total shipped. Just looking for any ideas. Thanks for the help.