BaNaNa916 Posted December 4, 2010 Report Share Posted December 4, 2010 When you see that the port length that you entered is 24 inches and in the little green box at the bottom it adds 2 inches to the length you entered, the program is allowing for end correction(half the width of the port(2") is added to the total length). Read the slot port section in this link to JL Audio explanation. http://mobile.jlaudio.com/support_pages.php?page_id=165 Hope this answers your question. Link to comment Share on other sites More sharing options...
Legych Posted December 4, 2010 Report Share Posted December 4, 2010 box is 28Wx40Hx19.5D 4 sub 12 inch Port is 28Wx3Hx14.52L Box tuned to 30 Hz. ВАЗ 2107........145,2 dB.........НОЭМА Link to comment Share on other sites More sharing options...
DJ JDub Posted December 4, 2010 Author Report Share Posted December 4, 2010 box is 28Wx40Hx19.5D 4 sub 12 inch Port is 28Wx3Hx14.52L Box tuned to 30 Hz. outer dimensions cannot exceed 28x40x20, thank you tho for actually doing all that work, ive been trying to make the design on sketch up but the program hates me, and the box calc just confuses the hell out of me Link to comment Share on other sites More sharing options...
Legych Posted December 5, 2010 Report Share Posted December 5, 2010 I offer to you forming an exhibitor port for decrease in noise in port. ВАЗ 2107........145,2 dB.........НОЭМА Link to comment Share on other sites More sharing options...
DJ JDub Posted December 5, 2010 Author Report Share Posted December 5, 2010 I offer to you forming an exhibitor port for decrease in noise in port. Thank you so much! Link to comment Share on other sites More sharing options...
DJ JDub Posted December 5, 2010 Author Report Share Posted December 5, 2010 You used 1" wood if im reading it correctly right? Link to comment Share on other sites More sharing options...
Legych Posted December 5, 2010 Report Share Posted December 5, 2010 You used 1" wood if im reading it correctly right? Yes 1". For 4x12 inch subs it is good =) ВАЗ 2107........145,2 dB.........НОЭМА Link to comment Share on other sites More sharing options...
DJ JDub Posted December 5, 2010 Author Report Share Posted December 5, 2010 You used 1" wood if im reading it correctly right? Yes 1". For 4x12 inch subs it is good =) thanks so much for the help man. Link to comment Share on other sites More sharing options...
Legych Posted December 5, 2010 Report Share Posted December 5, 2010 Is always glad to help! ВАЗ 2107........145,2 dB.........НОЭМА Link to comment Share on other sites More sharing options...
DJ JDub Posted December 5, 2010 Author Report Share Posted December 5, 2010 what is it tuned to then? box calc is still being stupid for me (it works i just dont know how to use it apparently) Link to comment Share on other sites More sharing options...
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