Fats69 Posted July 1, 2019 Report Share Posted July 1, 2019 Need help with 4 15" subwoofer box design. 2001 suburban, sub up port back need 2.8 to 3.5 cubic feet per sub. Any help would be appreciated. Link to comment Share on other sites More sharing options...
Dewayne Posted February 6, 2020 Report Share Posted February 6, 2020 Any luck? I’m looking for the same thing!! Link to comment Share on other sites More sharing options...
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