I all ready have this amp that has performed great over the last 8 years and need to find a SQ sub that would match up with it well.
Lanzar Vibe 1200D
http://www.carsound.com/review_archive/amps/vibe1200d.html
4 ohm - 400W
2 ohm - 800W
1 ohm - 1200W
I prefer a sealed box and wont have room...