Slimsta Posted March 11, 2011 Report Share Posted March 11, 2011 diagram of the box with all the numbers in inches i used this website http://www.the12volt.com/caraudio/boxcalcs.asp#por to calculate the volume and go around 4.1 ft^3 what LP and HP Frequency should I set my amp on? i need to know the port tune my sub is brand new, just got it like a week ago. it Alpine Type R 15 inch 4 ohms subwoofer. my amp is JBL GTO7001. i got the box ready like this from some guy.. he said he made the box Link to comment Share on other sites More sharing options...
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