Hi Everyone. I'm new to this forum, but not to HT. After reading a lot of the posts and hearing so much about SVS I'm thinking about upgrading. My question is how does the 20-39cs compare to a Polk Audio PSW1200? The reason I am asking this is because I've heard the Polk and it sounds very good to me, and I can get it dirt cheap. The room it is going in is 12 x 19, but it also connects to my stairs and the hall with no doors if that helps. Any response will be greatly appreciated.