Who are some of elite sub woofers?

Maybe outside of your budget, but I personally love my dial JTR Captivator 2400s. They are port tuned to 10Hz, so you get the high output of ported, but with the benefits of sealed. They are very fast and sound great for both HT and 2 Channel music. Check them out.

http://jtrspeakers.com/captivator-2400.html