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varying port diameter
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<blockquote data-quote="Alex JB" data-source="post: 5665152" data-attributes="member: 602795"><p>Hi folks,</p><p></p><p>I was wondering if there is any rule of thumb or web site you'd recommend for understanding how a varying port diameter effects the tune of a port/box?</p><p></p><p>e.g. having a 4" port with a restriction down to 3" in it or the other way round, a 3" port with a 4" dia bulge in it.</p><p></p><p>Even understanding what would a 2 stage port diameter would do would help (4" dia for x lenght then 3" dia for y length)</p></blockquote><p></p>
[QUOTE="Alex JB, post: 5665152, member: 602795"] Hi folks, I was wondering if there is any rule of thumb or web site you'd recommend for understanding how a varying port diameter effects the tune of a port/box? e.g. having a 4" port with a restriction down to 3" in it or the other way round, a 3" port with a 4" dia bulge in it. Even understanding what would a 2 stage port diameter would do would help (4" dia for x lenght then 3" dia for y length) [/QUOTE]
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varying port diameter
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