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Message: <blockquote data-quote="helotaxi" data-source="post: 362339" data-attributes="member: 550915"><p>You want a large port for the box to sound good.  Once the port starts getting too small in diameter you run into port turbulence.  The sub is still moving and the air is still trying to move in and out of the box through the port but now you are trying to move the same volume of air through a smaller opening.  For that to work the air has to move faster, and it starts to swirl and buffet.  This buffeting is audible.</p></blockquote><p></p>

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