What is the best Port length?

Don't know what length your port needs to be?? In this video I go through the maths and some principles of basic ported speaker tuning, including choosing tuning frequency itself. Timestamps: 0:00 - Introduction 0:47 - Port basics 1:58 - Choosing tuning Frequency 3:07 - Equation Examples 6:36 - Equation for port tuning 9:26 - Software - WinISD- Inputting specs 12:13 - Altering tuning and port length to fit requirements 14:26 Conclusion/Outro "What is the best port size?" https://www.youtube.com/watch?v=nxKkM4bXPFI "Choosing the right Subwoofer" https://www.youtube.com/watch?v=dth4gP7i7d0