I was going to mention thoseAcoustic Visions has some nice infinite baffle drivers right now for $125.
http://www.soundsolutionsaudio.com/forum/index.php?showtopic=10024
At that price those are going to be extremely hard to beat. What is your budget?do you think this is the best for the money i dont really want to spend that much on a sub so it works for my price