do some research on the cadence csx 12 from cadencestore.com
you can get one shipped anywhere to the lower 48 for $299.
i just got mine a few days ago and i love it. it actually sounds almost like a sealed sub. it hits hard and is way too powerful for my dorm room. i have to keep it at aboutone tenth the volume and thats pushing it

i cant wait to bring it home
good 12 inch sub for the money. it sounds better than my crappy 10's in my car with 1000w!