Originally Posted by PUSH2014
I watch a lot of movies I would like to stay around 2k my room is 15 by 18 vaulted ceilings mostly sealed
Your room size is very close to mine. Depending upon the height of your vaulted ceiling, you could be looking at about 3,000 cu. ft., which is on the high side of a medium sized room. Fortunately, it's mostly sealed where mine is mostly open.
I think everyone here realizes that JL Audio subwoofers are engineered to the hilt, and are excellent subwoofers. They are also really high priced, although the E-series seems to be at a more reasonable price point (if that $1500 price is legit).
Since you want this sub mostly for movies, that is a lot of volume to fill for one 12-inch driver. If you have only one seating position, it may work out fine, as long as you don't listen at reference levels. Oh, you can run it loud, probably not insanely loud.
There are several excellent alternatives to choose from, but if you want the JL, heck, go for it.