Need help building a ported box for a 15 inch sub.

[Trappenin]

Here is the link to the sub and the specs:

https://ssl.perfora.net/www.ficaraudio.com/sess/utn;jsessionid=154cef13cf4c09e/shopdata/0050_Speakers/0020_BL/product_overview.shopscript

It's the BL15.

Any and all help would be appreciated.

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[pro-rabbit 5,000+ posts]

What is it going in and what kind of space do you have to work with?

 

[RAM_Designs 5,000+ posts]

I'd do something in the area of 3.5-4ft^3 tuned to 32-33hz.