i just wanted to thank everyone, especially glasswolf johnathon and sean for all their help. i finally finised my system. i did 2 12" vmaxs in a 6.5 cuft ported box tuned to 37 hz with a fosgate 700s amp and infinity kappa components. it sounds awsome. it is everythind i wanted. thank u for all of the technical help and helping me decide on what to buy. i couldnt be happier with ur advise