Awesome site, BTW...

I'm helping my friend build bass speakers to bring to the clubs with his setup. The clubs here in Atlanta seem to have no/weak bass, so we're trying to build the most powerful bass speakers that we can. What's the best speakers/boxes/amps for this? We want to have powerful lower bass - like what you hear in Drum N Bass,

It seems like the club's setups will do okay house and trance, but DnB needs more low bass to sound right...