polyfill can be had at Wal-mart.

Sealed, 1.25, seriously

ported hits harder, but it will be louder around the tuned frequency...but it won't be too much excursion, just don't want it playing below the frequency of the enclosure.
For good all around sound, low bass, sealed.

 

mmmmmmmmmm..........that is only .84 ft^3. I dont think that will be big enough for a cvx? I would imagine you would want at least over 1 ft^3 for a 12".

 

X2

 

really? do you know where then i can get a single 12" box that will fit just behind the center console armrest? i guess i'll have to test it out and see

 

^^^LOL, you gotta let me know if you do, and also what kinda track times its going to hit!

 

im in the process of doing this also, i have 2 tens behind the seat now, they dont sound that great because they blast into the seat and there is hollow space there, iam probably going to pull the center console and put 1 12" cvx hittin the floor as far back as possible and then put another about where the console was and build armrest on to the box and some cup holders

 

This was back in the day, I think you'd have trouble fitting a twelve back there. This box needed mega persuasion to slide in there.

 

i think i woulda done like 1 cuft for that cvx those subs are like xtra nassttttyyy

n2m kicker specs the cvx 12 as follows:

sealed: 1.0 - 4.6 cu.ft.

ported: 1.75 - 2.25 cu.ft.

 

12", 1.25 sealed
10", 1.0 sealed