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Jimmyd_442
11-26-2004, 01:00 AM
I'm trying to build a box for a 15" Alpine SWR 1541

I'm using winisd to find the port length.
Could somebody please tell me how to read the graph. The istructions don't really give a good discription.

IgnoreMe
11-26-2004, 01:19 AM
go to my tutorial in my sig and use that formula to find your port length. winisd isnt accurate in calculating port lenght. good luck