Slim337 Posted March 1, 2012 Report Share Posted March 1, 2012 Can anyone give me the spec's for a ported box for 4 spl audio sp3 12's. It's for a Yukon. I've got room for it to be no more than 4ft wide & 3ft tall. But it can be deep as needed. I can build them but never could figure the right air space & port size. Any help would be greatly appreciated. Thx Link to comment Share on other sites More sharing options...
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