OK Alpine type R manual says to build a box I need 3.0 cubic ft per sub max
and the Ported needs to be 15in x 1-1/2in x 27in long. Ok that sounds
like a small port to only be 1-1/2in wide to me...
So I guess I just want some opinions on whether to go by the manual
or Build a bigger port ?? And if bigger how big Thanks