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Junior Varsity
Take out port to lower resonant frequency
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<blockquote data-quote="Carl Klinkenborg" data-source="post: 212883" data-attributes="member: 12770"><p>Blanking off two ports will indeed reduce the resonant frequency of the box. It will also halve the port area (and triangular ports are about as bad as they get anyway) thus reducing port output, whilst dramatically increasing port distortion and compression. The upshot of the modification you suggest will be greatly reduced output just where you want it! An 18" in a little box like that cannot ever go particularly low anyway. There's just no getting away from the physics...</p><p>Triangular ports are made for one reason; well, possibly two - cheapness and/or ignorance. Please folks, don't do it. There are plenty of good papers on the 'net showing how it should be done.</p></blockquote><p></p>
[QUOTE="Carl Klinkenborg, post: 212883, member: 12770"] Blanking off two ports will indeed reduce the resonant frequency of the box. It will also halve the port area (and triangular ports are about as bad as they get anyway) thus reducing port output, whilst dramatically increasing port distortion and compression. The upshot of the modification you suggest will be greatly reduced output just where you want it! An 18" in a little box like that cannot ever go particularly low anyway. There's just no getting away from the physics... Triangular ports are made for one reason; well, possibly two - cheapness and/or ignorance. Please folks, don't do it. There are plenty of good papers on the 'net showing how it should be done. [/QUOTE]
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Take out port to lower resonant frequency
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