Thank you all for your thoughts. OK. I think I have it narrowed down to the SVS PB10-ISD 10 or the Hsu stf-2 or the Hsu vtf-2. I'd be using it mostly for music (as opposed to home theatre). The room is approximately 22 feet long by 13 feet wide. Again, I'll appreciate any suggestions re: the best 10 inch subwoofer.