Single ab 15" box design needed plzz

[Renaldo]

Wanted box to be dual ported on d front n sub front 

Dims- height 20"

          -width 30"

          -depth 24"

All dims cud be changed if needed 

Wanted it to be tuned to like between 34-38 hz

Sub has a 2krms coil in it n will be running on a Taramps bass3k any other info needed jus say