here is proof what can be done with a "real car audio set up"
YouTube - two tc3000 12s in bass race practice run number 2
YouTube - Nicks hairtrick with two tc5200 15's at slamology
YouTube - 2 RE MT 15's on two sundown 3000D's @ 1 ohm each
YouTube - 2 Image Dynamics Idmax 12's on 200 watts RMS in my civic si
YouTube - saz3000D on my two RE 8's
YouTube - The 18s are finally in Bigger and Better Flex