http://www.rolandus.com/products/details.asp?catid=7&subcatid=33&prodid=KCW%2D1

I just picked this up today, but I won't get to test drive it at a show till next week. It's small, square and has a built in, variable crossover (Sunny????) that can be fed from any sub-out or monitor out.
The specs rate it at 200watts, and they say it's 50lbs, but it was very well balanced and I didn't mind shlepping it as much as I did the old PSR9k. It's 1/2 the size (and 1/3 the power) of the Mackie sub.
I'll give my review as soon as I put it through it's paces. I heard it at the store with a Roland KC150 as the main feed - sounded fabulous. Adding this to my JBL eon G2's should be all I need for the rest of my year. (sigh...)
Now that I have a small alternative to those gut wrenching low frequencies....I'll probably use it more often!
Stay tuned folks......