I have a 1994 Mazda 626 LX (sedan), what I have so far is:
Subs: 2 x 12" Pioneer TS-W304DVC (300watts RMS, 600watts peak) in a sealed box
Sub Amp: Profile Clarus CL400 (300x1@4Ohms)
Speakers: 2 pairs of Polk EX368
Headunit: Panasonic CQ-DF801U
My subs don't hit that hard as I want the to do...