MED
Junior Member
I am in the process of Building A New Ported box for my 2 Rockford Fosgate P312D4 Subs.
I was going by the Spec Sheet and putting it into the WinISD prgram so it will give me Volume and Size for the Box.
So I also checked the Rockford Fosgate website and they were telling me a totally Different Size and Volume.
What should I go by?
I was going by the Spec Sheet and putting it into the WinISD prgram so it will give me Volume and Size for the Box.
So I also checked the Rockford Fosgate website and they were telling me a totally Different Size and Volume.
What should I go by?