really need some help

[s12mm4000 10+ year member]

i have a hdc3 12 dual 2 ohm sub and a incriminator audio 20.1 and i am going to build a box for it . and i need help on a box designit is for a 87 nissan 200sx it looks just like a ae86 corrola hatchback. my dimentions are 35wide40deep and 16 tall so 35x40x16 and i would like it to be ported and tuned to 36,

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[BrianChia 10+ year member]

I'll do it for $10.

 

[rbiele126 10+ year member]

why tune it to 36