i have a ev dh1506 driver and i have ev evx-150 15" 1000 watt 8 hm woofer. could someone tell me what crossover is best paired with this. I already have three sets of crossovers; ev-xeq 808 crossover/equalizer 800 hz,altec n809-8a 800 hz and altec n1501-8a 1500 hz. thanks