How can i design a box

[southport2014]

how can i design a box using pen paper and calculator like whats the formula and i want to be able to designthe best box for my sub and how can i find the hz or does anyone know the best program for it i want to be able to do it the most accuate

[ab18vfl]

download torres box calculator. it uses the same formula's. google it.

[Colossus281]

You got a android smartphone? Go to play store look for box tuning calculator

[southport2014]

You got a android smartphone? Go to play store look for box tuning calculator
i have iphone

[jart27]

bcae1 box calculator works nicely