On May 8, 2012 at 15:10, oex said...
Def Tech SuperCube 2000
Or for $800 the supercube 4000.
At this price point there are a lot of directions you can go. I would say that just about every speaker manufacturer has a sub in this price range that will make most folks pretty happy.
I know that someone will mention SnapAV, although their speakers are pretty good, I haven't loved most of their subs. The little cub wasn't bad for the money.