some one PLEASE check my math!!!!!

[brilamb2]

i sat back and tried to design this box and i keep coming up a little different each time, so heres my best go at it..... can someone check and see if im right on the port size and tuning is my main convcern, i want it tuned to 32 -34 hz. i will be putting in 2 boston g3 12's, and rear facing it in an astro van behind the rear seat, hence the box only being 12 deep. also sorry not to scale

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[brilamb2]

Anybody with any input would be appreciated

 

[subzero 5,000+ posts]

RE Enclosure Calculator

 

[Wildbillpb 10+ year member]

What did you use to draw those?

 

[brilamb2]

subzero: THANK YOU!!!!!!! that did exactly what i needed. i looked on the =web for hours to find something like that, but just kept finding box building programs, that were always way off.

Wildbill: um ....... kinda took a design from the free designs and replaced the numbers with my own. Not trying to steal anybodies plans, but have no way of drafting on my own