this is the dimensions i will be working with in my x-cab tacoma:

53x19x19

12volt's calculator tells me that i have an enclosure of ~9 cubes internal space.

im using the port size calc over at carstereo. i will be using a square vent of 9.5x9.5 and a tuning of 35hz.

now where it says Enter Enclosure Volume X (ft3 ), would X be the 9 cubes of internal space im working with?

i had 9cubes down and the vent length = 14.22 inches. should the port be 14.22 inches from end to end or is there an end factor i have to calculate? thanks.

2. Re: please check this math?

what are you building the enclosure for.

now where it says Enter Enclosure Volume X (ft3 ), would X be the 9 cubes of internal space im working with?
No depending on what sub, or subs you ar using you need to find the net volume you want to use the 9.13cuft that you have is gross.

If you want I can figure it out for you and draw you a design in Sketchup.

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