Best home theater subwoofer to mate w/Aerial 7B's


I just purchased a pair of Aerial 7B's for my dedicated home theater room. Although the room is rather small (12x12), I would like to find a sub that will both pressurize the room and mate well with the 7B's. I've heard the REL Storm III and it sounded great and mated perfectly with the Aerial's. How well will this sub work on LFE in a HT set-up? Are there any other subwoofers that I should consider?
zippyy
Without trying to state the obvious have you auditioned an Aerial SW12? I now have two of them in my system with Aerial LR5s. I recently owned the 7Bs and had the SW12 mated with them. The sound was seamless, clear, and very powerful. If you check out the back panel is more of a command center than a control panel. I know that it’s pricey but discounting is available and the unit is, IMHO, as good as it gets.

Ken
Ken and Ed,
That is the obvious choice, but I'm thinking that they are just to big and maybe overkill for a 12x12 room. They are also a bit pricey! Would one (or two) Storm III's work. I'm not sure these are the proper subs for HT.
If it is dedicated HT, you may want to consider the Q series REL's like the Q100E, Q150E, or Q201E. They are all excellent at their price points. The 150 and 201 have a small footprint also. The Q series are also very musical.
The Hsu Research (www.hsuresearch.com) VTF-2 was given a "Class A" rating in Stereophile's Guide To Home Theater magazine. Best of all, you could get TWO of them for about $1k. What other powered sub can offer such a value? It is definitely one (or a pair of them) to consider for your Aerial system.