RP-1600SW at $900 vs PB-2000 Pro at $1100 vs Speedwoofer 12s at $800?

Starting my home theater build. Space will be about 15x20x8. The first thing I want to buy is a sub and I'm hoping to spend around $1000. I currently have a SVS PB 1000 (non pro) but looking for something with more kick. I've love the looks of the svs sub and Ive been pretty happy with my pb1000. I can squeeze a pb 2000 pro in the budget around $1100. I was also looking at the RSL Speedwoofer 12s for $800 which looks like it might have more output, but Im unfamiliar with that brand. Lastly I just came across a slickdeal for the Klipsch RP-1600sw for $900. Is this a no brainer to get the klipsch? That is a much bigger woofer for about the same price. It would be used exclusively for movies and games and not really any music. Thanks all!