Alrighty guys, I'm in a band,and we're looking for a P.A. , I've picked up a few things along the way, touring with my brother's band, and I was wondering some things about mixers, crossovers and P.A. in general.So.... If my understanding is correct, busses are Main sends? You run from the busses to power amps then into the main speakers? How would I run from the 2 busses, into a crossover, then into mains and seperate subs? Any other information you can give on P.A. Mixers, Power amps, Crossovers, or any safe techniques are accepted....Thanks a billion in advance. Also, how would I run EQ's, FX units and maybe a BBE Sonic Maximizer?