Invert Mounting a DC L4 XL 12" & Square Port help

[AssKicker]

I'm designing a new box for my G37, and I wanted it to have e most space possible while not occupying my entire trunk.

Any how I have 3 questions:

1) What size diameter would I cut for a level 4 xl 12" invert? 11" still like normal?

2) Wiring wise and power wise, do I just reverse polarity's and run the same amount of power?

3) Port, for that will I just calculate air space as though the sub is not there and the formula is still the same?

[IH8PunkRok]

1) It should still be the same cut out

2) Same amount of power yes. i dont think reversing polarity is needed

3) Yes, just do not subtract the displacement of the sub

[Namosh]

Actually, when I inverted my XL's in the same size cutout, I could push on the surround and feel the wood touching it. I didn't cut the hole larger but I did put a bevel on it just to be sure it wouldn't rub when playing.

[AssKicker]

So if I were to cut a 11.25 inch cut out I'd be fine right?

And I'm having trouble with port length calculations with a single square port.

I want to do one square port in the middle, and keep a nice amount of port area.

Here is the problem: the port length ends up being super long!

Are there any ways to like distribute this or some techniques for placement?

Edit NVM: I figured it out