Port size on a 15" subwoofer?

Question

what size port (diameter and length) should i make the port on my 15" subwoofer box? its a 600w peak and 300w RMS

here is the speaker http://www.newegg.com/Product/Product.aspx?Item=N82E16882010154

Answer 1

Check the BOSS audio website, it will tell you port area and port length, different subs take different ports to perform at their best. Good Luck!

Answer 2

that all depends on how big the box is and what tuneing you want the size of the box changes everything and so does the tuneing  you are looking for