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Message: <blockquote data-quote="MrWizzard" data-source="post: 1005147" data-attributes="member: 555489">If its a tubular port, then thats normal,  ports like that ****, its Air Noise/Port noise, better to go with Sloted port...  plus blocking the port if the box and port is tuned for the sub will make the sub sound worse than it should.if the port isnt flared at both ends though, you could try replacing it with a flared port... otherwise go slot port or try a sealed enclosure, if you're sub if designed for it, check the website for you're sub for enclosure recommendations if there is any...  usually if you block the port, wich means sealed, then the box size would have to change for the subs sealed recommendations if any.  Ported is louder though, so try changing the port or build/buy new box with sloted port.</blockquote>

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