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Message: <blockquote data-quote="akadj" data-source="post: 8210436" data-attributes="member: 554298">Only thing I can tell you with out being there to see the vehicle and dimensions to work with is that your port should be 1/3 of the surface area .I've never been one to use the 12-16 sq" of port per cubic foot because your port area is not a variant to box size, port length is. Your port radiates sound and needs to be built accordingly to Xmax and surface area. To small of a port for your woofers and the air your trying to move will essentially just be a "leaky sealed box".. So i suggest a pair of 18" woofers should have a port no smaller then 150 sq"</blockquote>

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