Jns Posted April 22, 2018 Report Share Posted April 22, 2018 How do I build a box for a level 4 12" dc audio sub this would be for 1 sub only I know that it has to be 1.5 cubic feet but I need to know in inches don't understand cubic feet thanks Link to comment Share on other sites More sharing options...
MyNameIsNoob Posted April 22, 2018 Report Share Posted April 22, 2018 I have some programs on my laptop, but ive used this before https://www.the12volt.com/caraudio/boxcalcs.asp#rec Link to comment Share on other sites More sharing options...
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