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Message: <blockquote data-quote="Massive spl" data-source="post: 8490439" data-attributes="member: 666725"><p>Pretty much do this. Build the shell and the sealed side and load woofers in and run a sweap. Most people want the res freq to be 45hz-49hz and you can make the sealed side smaller or bigger to get that number... Once you do that you tune the ported side to your sealed sides res freq. port area can be around half the inches of cone area you have for starting and make port bigger or small until you find your sweet spot.</p></blockquote><p></p>

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