Conclusion: I put one of these in my girlfriends single cab truck with a jl j2 360.2 amp and it sounded good but lacked the lows, so i got a fosgate 600 by 2 amp. Bridged it to 760 watts and the two of them in separate sealed boxed do very good. im thinking about a larger custom ported box but for now this is deffinately a good amount of bass. It is currently the loudest of anyone in the highschool (our highschool is very small 150 kids +) but still..
Conclusion: I have two of these subs behind the seat of my 87 GMC standard cab pickup in a custom box, running them at 2 ohms to a Kicker ZX700.5 amp, these subs produce all the bass of two full size Kenwoods I had in my previous vehicle, if not more, and can sustain equal lows to the full size subs I had. I would highly recommend these to anybody wanting a sub who has depth restraints!