Hi, I'm going to be making a box for a 12" pioneer sub i'm getting soon, and i've got the design figured out. I just have one question; what should i use to make the port? it's going to be a round port 3" in diameter and 6" long. (pioneer recomendation.) I was thinking either PVC or ABS pipe, but i don't really know. Thanks a lot.

 

most people use PVC It works good

 

You can find great ports from solen.ca, but they only have 3x9 and 3x12 ports.
What are the box dimensions and target tuning?