Here is a manual for your subwoofers: http://mobile.jlaudio.com/pdfs/8-12W6_BDS.pdf

use the wiring diagram for 1.5? (1.5ohm) with 2 speakers. the diagram for 3 speakers will not work, because it would bring the load down to 1 ohm, and the amp cannot go below 1.5 ohm.

to set up the amp:

under "preamp output section", on the "output mode" switch, select "amp filter"

to set up the levels: start with the amp gain pretty far down- with the input voltage on low for line level outputs from the deck, and on high for speaker outputs from the deck. now turn your cd deck as far up as it will go until it distorts, then turn the cd deck down to just where it stops distorting. now, you can start to turn up the gain on the amp.

on the filters, youll prolly want the cutoff filter around 100hz @ 24db slope. start with the infrasonic filters off, but, if you do get into them, try centering between 30 and 60hz on either, and, possibly dropping the cutoff filter to 80hz.

I don't know what type of bass you want so let's cover them all if you want pounding bass that's what the 10s give you. If you want pounding and some deep bass 12s give you that. If you want low deep bass 15s give you that. I don't know what type of vehicle you have but you have an enclosure issue by changing your enclosure will give you a better sound and the sound you want. Most places sell enclosures for woofer fit not sound. To get the sound you want you may have to have a custom enclosure build.

Thats bcuz jl audio likes to dig deep in ur pocket most of there amps r only to run 1 sub shop on line get a 1 ohm stable amp Planet Audio Ac3000.1D Anarchy Class D Mono i just picked up about 6 months ago it slaps 1 of the best amps i had i run 4 12" cvr kickers w it there on amazon for 125.00 1 amp it will run all ur subs & u wont dig so deep in ur pocket