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The 4th order thread
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<blockquote data-quote="RangerDangerV2" data-source="post: 8130190" data-attributes="member: 637657"><p>forget the program. do the equation to find the Fc of your rear chamber, then multiply that by the ratio that you wish to achieve. a 3db gain is very noticeable. depending on the design of the 4th order, you can dig very low, and be very loud on little power, like my enclosure. and some port shapes are louder than others, but that depends on the application. I would go with a slot port, very easy to do</p></blockquote><p></p>
[QUOTE="RangerDangerV2, post: 8130190, member: 637657"] forget the program. do the equation to find the Fc of your rear chamber, then multiply that by the ratio that you wish to achieve. a 3db gain is very noticeable. depending on the design of the 4th order, you can dig very low, and be very loud on little power, like my enclosure. and some port shapes are louder than others, but that depends on the application. I would go with a slot port, very easy to do [/QUOTE]
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