Here's a link: http://www.svsubwoofers.com/subs_pci_25-31.htm

It's a little over your price range, but you can order it and try it knowing you can send it back within 45 days for a full refund. I have a house and a little larger room, I went with the 20-39pc+ and find it to be fast and accurate, sounding perfect with my new Monitor Audio setup.