hey guys,

doing a custom fiberglass/MDF install in the back of my s13 silvia.

rockford amps are being mounted nicely on left and right hand side. all good

i am seeking quallity not quantity! i want solid punchy bass NOT over powering bass that will make me poo my pants!!

up front and rear i have mb quarz that cost alot!! so dont want to drown them out with to much bass.. have a good powerfull 4 chan rockford amp to help em out.

bass... have a rockford P3001, subs or sub will be mounted inverted into the spare wheel area (unported).

in the following i am not shore on what OHMS the subs will be 2 or 4

option 1
one 12" Alpine type R

option 2
two 12" Alpine type S

option 3
one 15" Rockford Punch (P1)

if any of you guys have some Audio knowledge can you help a brother out!?
what you reccomend

thanks in advance!!