B&W ASW-600 Bowers & Wilkens 10" 150W powered Subwoofer

Won't find a better sounding, cleaner, dynamic, and customizable subwoofer for anywhere near the price. I'm moving, and I need to get rid of some gear. I love this damn thing, and hate to think I'm gonna have to drop 6 or 7 hundred bucks to replace it' but my loss your gain!
I've heard all the haters say Bowers and Wilkins makes the best in everything except for subwoofers. To be honest, if I wrote "SVS" or "Klipsch" on this sub, I could sell or if a grand, and no one would notice. Hell, I could probably sell it as a Bose for 3000 at the mall and blow some freaking minds lol...
Anyway, Kevlar reinforced 10" long range driver powered by a 150W class B amp. Fully enclosed: tight enough to handle anything you throw at it, but will still fill a medium-large sized room with any system that isn't unnecessarily (read obnoxiously) loud.
Model is discontinued, but was sold with B&W's current 600 system and works seamlessly with its old and new components. I'd say the closest current model is the 610, but the class D amp is way quieter and a little less clear despite the extra 50 watts. In think it's class D amp: they just don't punch and rumble the same way.... Still, the 610XL and other current BW subs are way beyond this one, so there's no clear comparison. 
Anywho, if you have some BW 600 series speakers and want a cheap sub that fits in perfectly or you want to up your low ends (seriously, watch a video of this thing blowing out 20-80 hertz...it's absurd) for a really low prices, you can't beat this deal. 
Oh...and if you think Bose or Beats by Dre or Sony, etc. sound really good, just buy this to save yourself 1000's in losing to good marketing.