This is a used Yorkville Pulse PS110P 200 watt powered sub with 1x10" speaker.
Covered in the blue carpet style material. Has the speaker cup built into the top for stacking a main above it with a speaker stand.
Here's a link to the yorkville site with all the specs:
http://yorkville.com/legacy/loudspeakers/product/ps110p/
great addition to any PA. Adds some nice bottom end Thump!