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Message: <blockquote data-quote="RAM_Designs" data-source="post: 7378659" data-attributes="member: 566575">Actually, for a given excursion you're going to have air moving more rapidly in and out of the port with a higher tuning(makes sense, more cycles per second vs a lower frequency).  So theoretically, given the same excursion you'd need less port with a lower tuning in order to avoid port noise.  The issue is that with a lower tuning, like 28-30hz, it's easier to hear port noise or vehicle vibrations since that upper 20's to low 30's range(which is where the port will be working the hardest) is where sound starts to go from being audible towards more of a feeling experience.I do understand your point with a sub moving easier at a lower frequency, but around the tuning frequency the sub won't be moving that much anyways.</blockquote>

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