Architectural Designs

Designs for building 4 12 in subwoofer custom box?

I have 2 12in polk audio subs, but I am planning on buying 2 more subs. I drive a Ford Explorer and I was wondering if anyone had any ideas or plans to build a 4 12 in imported subwoofer box to fit into my car, I have roughly 34 inches from my back of my car to the 2nd row of seats because I leave the third row down, and roughly 43 inches wide to build the box. Any ideas?

Public Comments

1. Subs up port back Roughly 12 to 15 sq. Inches per cubic ft. Typically 12s need 1.25 to 2.00 cubic ft each Tune low for more sq ~ 28 to 35 htz Tune high for more loudness ~ 36 to 45 htz Just depends what you listen to. Now take those numbers and design a box. If you want someone to design it people pay good money for that, unless they're feeling generous. Google sketch up is a free program you can use to design a box. Search for Torres box calculator, it too is free and can help crunch in those numbers. Explorers get silly loud so if you make a good box, you will get loud.