GoldenEar ForceField 3 subwoofer:
8" long-throw high output bass driver and a 9"x 11" quadratic planar infrasonic radiator on the bottom of the unit.
It has a 1000 watt internal amp which really makes it thump hard for it's small size. The small foot print makes it a great sub for small spaces like a bedroom. It has a small hole in the grill cloth and some lite nicks on the back edge. Other than that, this sub looks pretty nice. I have the original box, power cord, and owner's manual and I will throw in a LFE cable if needed.
I was using this sub with bookshelf speakers but now that I'm using floor standing, I don't need it anymore.