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Sealed vs. Ported Subwoofer Enclosures in Pro Audio
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<blockquote data-quote="Helge A. Bentsen" data-source="post: 132015" data-attributes="member: 263"><p>Re: Sealed vs. Ported Subwoofer Enclosures in Pro Audio</p><p></p><p>Using the scientific method of MNAUTMS* I came up with these plots. I used WinISDs suggested box size/alignment, put in a signal at rated max long term power and played around with a BW HP filter to keep cone excursion in check.</p><p></p><p>For comparison, a 18SW115 is simulated in a vented box using the same methods. To me, it looks like it will behave very well in both a sealed and a vented box. Obviously it has more output in a vented box, but as far as I can tell, it would sound pretty good in a sealed box.</p><p></p><p>If I were to build any of these, I would probably select a 18SW115 based on these simulations. The question is, can we actually trust them? Is it this easy?</p><p></p><p></p><p></p><p>----</p><p>* Moving Numbers Around Until They Make Sense</p></blockquote><p></p>
[QUOTE="Helge A. Bentsen, post: 132015, member: 263"] Re: Sealed vs. Ported Subwoofer Enclosures in Pro Audio Using the scientific method of MNAUTMS* I came up with these plots. I used WinISDs suggested box size/alignment, put in a signal at rated max long term power and played around with a BW HP filter to keep cone excursion in check. For comparison, a 18SW115 is simulated in a vented box using the same methods. To me, it looks like it will behave very well in both a sealed and a vented box. Obviously it has more output in a vented box, but as far as I can tell, it would sound pretty good in a sealed box. If I were to build any of these, I would probably select a 18SW115 based on these simulations. The question is, can we actually trust them? Is it this easy? ---- * Moving Numbers Around Until They Make Sense [/QUOTE]
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