Can someone do the tuning math for an custom enclosure I had built

[Antwan Black]

The ported enclosure was built for two DS-18 ZXI10.2d
Speaker displacement is.12ft3 per sub

External dimensions of the enclosure are material 3/4 in ply
44inL x 13in w x 12 1/4in h

DUal 4in ports at 20 1/4in long

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[Jimi77 Premium Member]

Divide cubic inches by 1728 to convert to cubic ft. Don't forget to subtract the volume of the ports from the net volume for the calculation.

Port Length Calculator

With this port length calculator, you will be able to figure out your subwoofer's vent length in no time.

www.omnicalculator.com

 

[shredder1 10+ year member]

The ported enclosure was built for two DS-18 ZXI10.2d
Speaker displacement is.12ft3 per sub

External dimensions of the enclosure are material 3/4 in ply
44inL x 13in w x 12 1/4in h

DUal 4in ports at 20 1/4in long

Try Torres box calc and add 1-2hz to the final tuning for most for a ballpark figure.

Don't forget all displacements and/or added volume to be accurate

 

[shredder1 10+ year member]

I'd venture that you're tuned 35hz, is there a legit reason you are asking?

Expectations always collide with reality in my experience and I've designed a few enclosures in my time... haha