In my Cougar I was looking to wire up a JBL Bp600.1 to 1 12" Earthquake magma w/SLAP. Probably looking at a medium sized sealed box three-fourths MDF. Pioneer HU (not sure which kind). Now not counting all the internal speakers how should this system do bass wise? I dont think I will be expecting all that much SQ out of it. What do you guys think?

1999 MTX Cougar Stainless Borla Cat Back SPEC stage 1 Clutch kit Reverse indiglo guages w/brushed aluminum bezel Polyurethane front sway bar/motor mount bushings, Dual Mode Dampener NEXT: Cold air intake