I'm using this calculator to get my port length. I'm wanting my subs to see a final volume of 4.5 cuft with a tuning of 31 hz. Its giving me 30.85 inches. Do I need to add the volume of the port to the 4.5 cuft to get the final volume of the box?
PS- my old thread was a dead thread, so i started a new one with a more exact question.