I am looking to change up the subs that I currently have in my car, as they are some no-names that I had lying around. I am having a hell-of-a-time picking which subs will work best with my amps. Electrical is one subject that I always have a hard time wrapping my brain around, so some input would be very helpful.

I have had a great experience with JL's in the past, so I'd like to stick with them. My box fits two 12's, so I'm going to stick with that as well.

Here's the details on my amp:
SoundStream PIC1.900D
RMS Power Output: 900 watts @ 1 Ohm
RMS Power Output: 450 watts @ 2 Ohms
RMS Power Output: 225 watts @ 4 Ohms
1-ohm Stable

Here's the details for the subs I have narrowed it down to (unless none are optimal):

1. 12w6v2: Dual 4ohm coils, 600W
2. 12w6(v1): Dual 6ohm coils, 300W
3. 12w3v3: Single 4ohm coil, 500W

From what I've found from some google research is:

1. With two 12w6w2's, wired in parallel, I'd be running at 1 ohm and 900W. Over powering the subs.
2. With two 12w6(v1)'s, wired in parallel, I'd be running at 1.5 ohms and 600W. Again, over powering the subs.
3. If I go with two 12w3v3's, wired in parallel, I'd be at 2 ohms and 450W. Slightly under powering.

What would you go with and why?

 

in my personal opinion i would go with a sub that will do what ever ohms you want at the power level the amps can do. also, idk how you going to do 2 12'' subs in the trunk of the Z unless you do the fiber glass under the strut or have half your trunk dedicated to the 2 12' subs.

 

Thanks man. The more I think about it, the more I think I'm going to have to break my brand loyalty and find a pair or 800-1000 rms subs with 4ohm dual voice coils.

I've got the two 12's firing up above the strut bar. I would've liked to be pushing ten's into the trunk, but I had the two 12's lying around, so this was the easiest way to go. Plus I still have a little bit of trunk space this way...

This is what I've got, but paint matched to my car.