[Darren]

I have 4 RL-P 15" drivers in my IB subwoofer... nothing I've ever heard can touch it. 120db at 10Hz fifteen feet away says it all

http://www.soundsplinter.com/rlp15_subwoofer_information.html

See my build here: http://www.garagehobbies.com/ib.aspx

Darren