Best sub for $1300

I'm looking for any opinions on a sub better than SV's CS-Ultra for $1300 +shipping that's with the samson amp I could possibly be talked into the crown if it's worth it which I guess would make it $1900. I listen to music like NIN, Tool, and other stuff with lots of bass. I will also use it for movies and I like bass that goes deep in music. Room size I can't specify cause I seem to move alot so let's say go big sub and turn the volume down if needed. I want very loud and accurate bass. Thanks -Mark

Paradigm Servo 15 if it's still in the $1300 range.

Better for your system..that's for you to decide but it's pretty much a requirement that you at least give it a demo :)

Ok forget this question I'm gonna rephrase it.