How do you make a bandpass box?

[Puppet Master 10+ year member]

I am thinking about putting my old setup in my moms old shitty *** buick, because I can , and I am thinking about making it a bandpass box, since I have never made one. First of all, I don't even know how to do it, and I don't know where to get plans..............someone help?

Pm

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[Fast1one 10+ year member]

http://www.diysubwoofers.org/bnd/4thorder.htm

Start there

 

[PatFitz9 10+ year member]

talk to 80INCHES he seems to know a lot about em