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Message: <blockquote data-quote="snebes" data-source="post: 986057" data-attributes="member: 559900">What I mean with the ratios....lets say you needed to have a port area of 144", and you make the port 10"x14".  That is good because 10:14 is 1:1.4, which is less than 1:8.  If you made the port 4x36, it would be a 1:9 ration (which may sound ok, but is pushing it), it would throttle the sound waves and begin to create noise from the port.Basically, the ratio is there so you it is known not to make a port to narrow that it will bring unwanted noise into the system.</blockquote>

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