So I'm new here, but promise I have done some searching and research on my own before posting. I have about $600 to spend on a sub (it was more like $300 but it sounded like spending a few hundred more would really bump up the quality level). I'm a big bang for the buck kind of person so the Internet direct companies seem appealing. I also don't mind buying without hearing. My room is about 18 x 19 with two doors and I'm about a 50/50 music and movies guy. So I found the SVS pb12 nsd. Talking with their sales rep sounds like it would fill the room nicely and fits in the budget if I can find one on b-stock. I was planning on getting one of these based on the reviews from around the web, but thought I should do a bit more research to see if I was missing any gems. I cam across the AV123 MFW-15. I can pick one of these up for about $500 on b-stock + shipping. In trying to find a review and comparison between the two subs all I come across are people comparing the mfw-15 to the svs pb12 plus, which is almost twice as much. If the mfw-15 is comparable to the pb12 plus it seems like a no brainer. What am I missing here? Are there any other subs in this price range I should be considering? Thanks all.