WinISD determines the box volume and tuning frequency for a specific sub. Sonotube.exe determines the proper volume of a sonotube and the port length for a given box volume and tuning.Oh OK I thought the woofers individual properties changed the dimensions and tuning needed.
You must mean the "High Cut". Thr high cut is defeatable with the push button on off switch.Do you just turn the bass boost to 150hz so it above the crossover...
Try the setup and see how it sounds before buying anything.and might have cancellation
I was just letting you know how tall a 20 cu.ft. tube would be.Wow...Why does it need to be so tall?
Not if you use a smaller volume.So to tune this sub to 15hz I would need to make it 98" tall...wow.