I never seem to come across these anymore, GREAT sub woofer.
I'd shoot that guy an email (I believe that is Jacob). You cannot beat that sub for $80 shipped! I convinced my roommate to buy one (even though he wanted to go with some mainstream brand). He did, I put it in a 3.0 ft^3 enclosure tuned to 30hz and that thing was beautiful!. He was sending 500 watts to it. Again, GREAT sub woofer.