Ported enclosure program?

[Bumpin Expo]

I need a pretty simple to use program that I can use to plan out ported enclosures. I have a few subs I want to port so I need a program so I can mess around with measurements. Any suggestions would be great, free or if i have to "pay"

[93ex]

winisd, and do math yourself

[Bumpin Expo]

hey jesse when u have some free time one day can u help me learn it

[93ex]

Yeah, next wed night I know im off. or try me later at night.. like 11 pm or so.