Re: port help
The size of the ports should be 4 inches in diameter where ever possible. The larger the port, the lower the port noise. But the length of the ports depend on how large or how small the enclosure is and what the tuning frequency you want. Let us know if you are going to put the subs in a box with individual chambers, or one large one, and what the dimensions you have to work with.
Different People, Different Ways...