i know you guys hate this but i gotta know how close (if at all) i came...
after displacement internal vol. = 4.051 cubes
15.5 x 1.824" port , 10.853" long. Port area of 28.27"^2
i was attempting to get a tuning of 35hz, i know numbers arnt exact but is it close? because i got plans from diamond (this is for a 15" cm3) in which the box is 22 x 17.5 x 21.5, and a port with dimensions of 3 x 16 x 39. And that was just so much different than what i came up with.
Id like to use my design if its close, as i think itd get slightly louder.