Good design is vital for successes in a speaker or subwoofer box performance. This first video about SpeakerEnclosureDesign goes into basics of air volume and vented box tuning. There is two tips first to help to measure box volume and second to measure vented box tuning and then using that tuning to design different size port for your project.
My second video how to make custom design is here: • How to design custom subwoofer enclosure w... SED#2
0:00 Intro 2 key things
0:22 1 Speaker enclosure air volume
1:14 Tip to measure box volume
1:43 measure one side with wanted volume
2:27 2 Vented box tuning
3:30 Measuring vented box tuning and changing vent size
3:51 Calculator here is not available anymore, but check my calculator boaraudio.com
4:35 How about changing the box size