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Message: <blockquote data-quote="raisefold" data-source="post: 2232816" data-attributes="member: 569155">Hey guys, I've been using subwoofer tools to design a sub box, but they have the slot port, which isnt really a problem, but I just measured the trunk of my car...and the box I designed to spec takes up half of my trunk.  I really want to keep some of my trunk space...at least 2/3.  The box I wanted was 2.5 cubes tuned at 32hz. the dimemsions were 33.5 x 15.5 x 16.I was trying to explore options.  I was looking at the 12volt website and I tried to use their port calculator.  If i used 33 x 16 x 12 as external size, I get 2.775 cubic feet.  with the subs (0.09) I get internal space of 2.595 cubes.  So If i were to use a round port that is 4 inches in diameter and tune it to 32hz.  Would the port be 9.8 inches long?I'm just trying to understand the concept.  Thanks in advance.</blockquote>

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