I am trying to build a box for a DD9512 and it says to be tuned at 30hz, I have the demensions of the box at
Width - 26"
Height - 15"
Depth - 24"
But with the port being at 3" wide and 12" long, that puts the volume of the box on RE designer at 3.414 whereas the box they recommend is 2.5, and the tune is at 27.33hz, I read that you have to personally account for the displacement yourself, so will the displacement of the sub make this up or do I need to tune it a bit higher? I am hoping to figure out my build on RE and then transfer it over to make it a bit more unique. Thanks