If you want poundage with precision....I can't rave enough about Bowers & Wilkins.
http://www.bowers-wilkins.com/Speake...tre/MT-30.html
The sub is powered 500w if that says anything lol. You would need a decent amp as well, I'm a huge fan of Yamaha.
Best amp under 5 bills, 6 HDMI 1.4a, 1080p upscaling. I have one hooked to my KEF reference speakers.
http://www.amazon.com/Yamaha-RX-V667.../ref=de_a_smtd
Not cheap, but insanely accurate and they'll last outlast the owner.
That would be your best bet, just because of the connectivity.