I think it's a CHT 10 or a CT 10.

I like it and think it compares very well (for music) to much more expensive subs I have. I have a Klipsch KLF10,Vance Dickinson Titanic 12", Dahlquist PDQ1500 (15"), SVS 20-39+, Modded Kenwood SW300 (10" Partsexpress Dayton driver replacing Kenwood after playing Dreamworks version of "The Time Machine" blew my OEM SW300 into small rubber bits all over the room, very impressive!)

For music this modest but quick Velodyne works very well. Inexpensive as well.

Enjoy the Music. Trust your ears. Laugh at Folks Who Claim to Know it All.