Two 18" Audiobahn AW1805Q's, two Crescendo 4.5k amps, Right now using Kenwood DDX370 in dash DVD Media player, but I change head unit ALOT!!! Idky just do. Custom built component setup using DS18 crossovers 4 MBQuart 8" mid-drivers and 20 Focal 1" tweeters. Running of a 1,200 watt Kicker 4...