Calculating port tuning

[caseyarndt 10+ year member]

I would like to build a slot ported box somewhat like this.

View attachment 26527388

But I do not know how to calculate the size and tuning of this kind of port.

I know there are box calculators out there but I am not aware of one that will do a box with multiple port extensions.

If there are none, does anyone know the math behind calculating this?

Thanks for your help

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[AlterEgo99 5,000+ posts]

Welcome to car audio nirvana...heaven on Earth.

Wrong section bro.