I'm building a box for my 2 Atlas 15"s and the port dimensions are 7" wide with a 1st height of 17" and 2nd height of 12.5".
--The port is slotted and I'm tuning it to 33 Hz w/7 cubes net, but my question is when im figuring the tuning for the port at this site:
...since I have 2 different heights, should I add the two heights and divide by 2 to use 14.75" for height??
Thanks for all responses.