need a box design

[maldecido33 10+ year member]

i've got a predicament that my creativity just can't seem to stand up to. i need a 1.4 cubic foot box tuned around 38 Hz, with approximately 25-30 sq in of port. it's for 4 re re 8"s. it also is going behind the seats of a regular cab silverado.

Slot ports or aero ports, whichever most effectively utilizes available space.

External or internal ports, as long as they aren't visible when the seats are back.

I don't want to fiberglass.

anyone up to this challenge? I'm kinda stumped. I guess you could say box builders block. I'll pay, of course. Let me know if you can do it.

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