First true spl box build

[TCI]

looking for advice where to start. just received my two 12" PSI Platform 2 HP option with .5 VC. I have a term lab and my VERY OWN NOTE PAD. I do know what that ill have to do lots of testing. Just wondering where a good place to start would be. any help is appreciated.

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[LosIsATool 5,000+ posts]

Start with finding the resonance frequancy of the car.

 

[adulbrich 5,000+ posts]

This^

Then build boxes until you're sick of car audio.. then build some more boxes.

The mathematics are great, but real-world testing of different enclosures is better

 

[TCI]

what about port area. was thinking need to be 80-100sq inches. 2 12's with 28mm xmax.

 

[Davecubs14 10+ year member]

What vehicle do you have? And what organization are you competing in?