will pay a few bucks if it means that much to you
i built this box to go in my 96 impala. going in it is a dc audio lvl 4 15. i need help adding two tube ports.
this box, according to my calculations, is 4.465 cubic feet after sub displacement. i want to add two tube ports on either side of the sub to help with visual appearance since i love symmetry.
what tube port diameter and length do i need for a 33hz "sq" tuning?