www.parts-express.com that little dash makes a difference!

I'll tell you what... if you really want more bass, dont fool around with the sony... if you can afford it, go to parts express and get their 10" Titanic powered sub kit... its kinda fun to put together (all 30 minutes it takes) and the sound is fukin amazing! I got one for my parents... WOW comes to mind!! Their statement about the woofer putting out 114db at full power and not distorting is totally true! I'd say it plays louder than that!! Its also kinda cool to see a speaker with a 14mm xmax (28mm peak to peak) play... it looks like its gonna jump out and hit you!!

If you really want to upgrade the woofer, do like he said, find the internal volume (L x W x H / 1728) ...say the internal dimensions are 12 x 14 x 10... that comes out to .9722222, or .97 cubic feet. If you get their (parts express) catalog, they have a table that shows optimum enclosure volume and type for each of their woofers. I really suggest upgrading the whole sub if you can, and stick that Sony in your bedroom or hook it up to your computer or something.