I have a pair of Rti8's, Csi5, and am still undecided on rti6 vs fxi for surround. I was hoping for advice on which sub to get. I hope prices are ok to mention but I can get the psw404 for $250, which is much cheaper than some places. But I've also been told I don't need a polk sub to match the rest of the system. I don't want to spend more than $250-300. Is the psw404 the best for this price range? Thanks.
Edit: I read on another post about HSU and SVS subwoofers. I can't find them for sale through online retailers. Is it only sold through manufacterer directly? Thanks.