I have something similar in a RBH SEN1010 or something. It's similar to that except no amp.
Long story short: killer sub for 200 bucks IMO. Don't let the small amp fool you. Putting the drivers in a shared cab like that gets you like 6db sensitivity. At first I thought, "where are the ports?" but the
AH review showed them. I haven't gotten to the MSRP yet. Stay tuned.
EDIT: What are you use to getting for 200 bucks?