Best Subwoofer?

Velodyne HGS-15 or 18. No boom , no bloom, just accurate bass.

If you have less than a grand I would check out the Titan at www.audioc.com. If you have $1500 to spend I would check out the Kensington at www.avahifi.com. I'll probably be getting the latter in the next few months. Both are factory direct. I've heard that REL's are very good, albeit pricy.

I own a REL Q100E and let me tell you, It is clean smooth bass. The price is higher because IT IS better. I too thought they were expensive, but now I am convinved.