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Message: <blockquote data-quote="Gater" data-source="post: 8308887" data-attributes="member: 662505"><p>Ok so I'm building a box for a single 12" AB hd and I need to calculate the port displacement so u can figure the net volume. The box is 33"w*16h*16d with .75" mdf. 12volt.com says that 33x16x16 and .75 is 3.8^3ft. My port is labyrinth style and is 4" wide by 14.5 deep and there is 3 sections to the labyrinth, so it's about 40 inches long from the opening in the box to the ending edge if the 3 piece if wood that make up the port. As I said I'm trying to figure out port displacement so I can add that to sub and bracing displacement to find my ending box volume. I've searched everything u could find and can't find any information on how to calculate the displacement if a slot port or I wouldn't ask. Thanks in advance.</p></blockquote><p></p>

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