Tuning for my loaded 15" BTL

[djkloudz 0]

Hi i'm in the process of building my box for the 15" BTL, I wanna know how long the port will have to be to have a tuning of 32hz. My dimensions are 40 x 20 x 20 with double bracing 3/4" MDF. i did the math and with the double bracing, the internal volume is roughly 7.5 cubes. I wanna know how long the port will have to be at 4", 5" and 6" tall. Thx guys, Fi rocks

[baseballer1100 0]

Did you check out the sticky at the top?