Product* links:
Subwoofer: https://parts-express.sjv.io/oe95bO (save 5% with the code DIY5)

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In this video I provide examples of how box volume, tuning frequency and port cross section impact the length of your subwoofer's port. Watch this video and you will understand everything that determines your port length.

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Chapters:
0:00: Box Volume vs Port Length
5:48: Tuning Frequency vs Port Length
9:01: Port Cross Section vs Port Length
*As an affiliate marketer I may earn a small commission when you make a purchase at parts express.