port ?'s in general

[dman1049]

im going to be building a box for a kicker c 12 its going to be ported. my question is to go with multiple ports or how to really design a ported box that performs. how do i determine the # of ports and the sizes.

[RAM_Designs]

If doing a slot port, do 12-16in^2 of port area per ft^3 of air space. 6-9in^2 per ft^3 for aeroports. And I don't recommend doing PVC.

[psych0ticnemes1]

Read the 'How to build a ported box' sticky. That would be a good start. Kicker's site should help too.