Never done a round port before, but Im trying one on an interchangeable front baffle bo Im buildin tomorrow but I cant figure out port length, either th calclators are doing the formulas diferentor Im just plain not getting it.
The box is 37.5 X 20" X 13" using 3/4" all around.
Sub displaces .15, I BELIEVE te port displaces .491 @ 14.96" length (what I got but Im sure its wrong)
Port is a sonotube with 8.5"OD with a 8.375"ID. Going for a 40hz tune.
Just need help on port length
Thanks in advance
The box is 37.5 X 20" X 13" using 3/4" all around.
Sub displaces .15, I BELIEVE te port displaces .491 @ 14.96" length (what I got but Im sure its wrong)
Port is a sonotube with 8.5"OD with a 8.375"ID. Going for a 40hz tune.
Just need help on port length
Thanks in advance
