Improved Port Area Calculator

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With this port length calculator, you will be able to figure out your subwoofer's vent length in no time

Online calculator can do the same thing http:www the area of the slot port should be the same as the area of the round port  I also came with this idea The red section is just all the port area section that enclosure needs to be tuned, green section is the same slot

5 great star slot Net internal volume cubic feet, port area square inches, tuning frequency 61 Hz Custom subwoofer enclosure build Subwoofer box calculator online  So Im designing a new enclosure and have come across a speed bump Using the12volt slot port length calculator with these numbers: 24, 4,