help with box

[jspsc123 10+ year member]

hi im going to build a box for mysubs. i want a box that is 10cubic ft tuned to 32hz for my 2 kicker 15 cvr.the only problem is i dont know how to design it.what formula or formulas do i need to make the box?

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[dvrmstrng 5,000+ posts]

l x w x h

 

[jspsc123 10+ year member]

i know how to make 10cubes i just dont know how long i need to make the ports