Hello everyone, I have purchased everything in my home theater so far except for the sub. What I have coming at the moment : DENON AVR-1912 Polk CSi A4 center Polk monitor 70's front Polk monitor 40's back Now for the sub I've been reading and reading and going back and forth and now I'm even more confused than when I started. The room it would go in is in the basement which is pretty large and would be for about 80% movies 20%music. The subs I've come across that fall into my budget the best are the BIC pl-200, Polk PSW505, HSU STF-2, and the Lava LSP12. Any help in this matter would be greatly appreciated, thanks!!