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L = Length of Vent or Port D = Diameter of Vent N = Number of Ports V = Volume of Box F = Tuning Frequency K = End Correction Factor

Dayton 18″ HO Slot Port Designer: Brandon Boyl Project Time: 20+ hours Project Complexity: Intermediate Project Cost: $500-$1000 Project

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slot online jackpot part 1 how to build a Subwoofer Box Calculate the box volume using cubic ft Port Area Port