need help with box plans for Btl

[04_edge 10+ year member]

15" btl fully loaded //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

i have a general idea of what i want, 4-4.5 cubes around 32-ish hz range. some of the ideas i have are drawn below. my problem is that i dont know how to figure out the port dimensions to get the box tuned where i want it, and i cant find anything to help me out for free.

i really dont want the sub facing straight forward, it would be a bi*** to get out,and id like to be able to see it.

my max dimensions are 36x12x24.

ppppppppllleeeaaassssse help, id like to get started on the box tomorrow.

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[04_edge 10+ year member]

actually i just saw ngisms deal on how to design a ported box, im going to try it out...

 

[04_edge 10+ year member]

well that didnt help me at all, sooooo....anyone?

 

[04_edge 10+ year member]

bumpppp

how much does a woofers xmax effect tuning of a box?