How to Determine Mystery Box Tuning.

Hi there. I made a box for my Fiero, IIRC, I posted a thread on the build a couple months ago. I'm about to instal the amps, but Im not quite sure how to set them up. I can't see the speakers, so I won't be able to watch them to see if I'm near maximum excursion. This is a very unconventional setup, and I'm a little bit lost. For the sake of time, instead of writing up a long thread, I'll link you to the build thread on the Fiero forums, where you can see with the aid of many photos what Im talking about.

Triple 12 Build Thread. - Pennock's Fiero Forum

enjoy.