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<blockquote data-quote="terra" data-source="post: 3190513" data-attributes="member: 559497"><p>OK im building my box at 12 cu ft tuned to 31 hz. 41x20x30 roughly 192 sq in of port area...port back subs up. port going along the bottom width 39 inches wide and 5 inches tall with a kerfed port. i get a port length of 14.54 inches. correct or i done screwed up?</p></blockquote><p></p>
[QUOTE="terra, post: 3190513, member: 559497"] OK im building my box at 12 cu ft tuned to 31 hz. 41x20x30 roughly 192 sq in of port area...port back subs up. port going along the bottom width 39 inches wide and 5 inches tall with a kerfed port. i get a port length of 14.54 inches. correct or i done screwed up? [/QUOTE]
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