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Message: <blockquote data-quote="tooshort_128" data-source="post: 5576732" data-attributes="member: 576847"><p>I just figured out that a rule of thumb for round ports is about 8 square inches per cubic foot of airspace. First off, is this correct? If so, I'll have an enclosure for a 1" sub that is 2.34 cubes after sub displacement. I was probably looking at 1 4" Aero Port that will be 14.15" long to tune the box to 30hz. This would only give me about 12.56 in^2 of port area and if 8in^2 per cube is right, I would need 18.72in^2. My question is would this give me a lot of port noise and kill the SQ of my sub?</p></blockquote><p></p>

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