Best Subwoofer for $500?

Go to eBay. Type in "Velodyne" in search. Pick yourself up a bargain as I have.

I used an Adire Rava in a room the same size and was extremely happy with the musicality of that sub.

Hsu Research and Adire Rava are two more good choices under $500.

A friend just picked up a Sunfire SuperJR for $600 at onecall.com.

Dayon Audio 10 or 12, put it together in under and hour and it is powerful and tight.

DIY, or if you must the 12inch Dayton "Titanic" kit from parts express.

Hello,
I have two brand new Pinnacle Digital Sub-100 10"powered subwoofers for sale. These are a sealed box design for tighter bass and should work very nice in your room without being boomy. These subs have gain controls so you don't have to worry about over powering the room. Check out my ad on audiogon under Pinnacle.
These are great subs at a give away price!!! 195.00/ea. I can't believe i still have them.

Regards
Robert G. Sprout
717-232-4683(EST)