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quicky L port questionnn
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<blockquote data-quote="squidlover" data-source="post: 4709440" data-attributes="member: 595452"><p>It's important if you want the box tuned to a certain Hz.</p><p></p><p>Use this to figure out the port length.</p><p></p><p>LV= [(1.463 x 10^7 x R^2) / (Fb^2 x Vb)] - 1.463xR</p><p></p><p>Fb - is the desired tuning frequency of your enclosure in Hertz.</p><p></p><p>Lv - is the length of your port in inches.</p><p></p><p>R - is the inside radius of your vent tube.</p><p></p><p>Vb - is the internal volume of your enclosure in cubic inches. To convert cubic feet to cubic inches, multiply by 1728.</p><p></p><p>If you want to calculate square vents, the formula below will give you the value of R to use in the formula above.</p><p></p><p>R=square root of ( A / Pi .</p><p></p><p>Atleast this is what iv'e been told and what I have used.</p></blockquote><p></p>
[QUOTE="squidlover, post: 4709440, member: 595452"] It's important if you want the box tuned to a certain Hz. Use this to figure out the port length. LV= [(1.463 x 10^7 x R^2) / (Fb^2 x Vb)] - 1.463xR Fb - is the desired tuning frequency of your enclosure in Hertz. Lv - is the length of your port in inches. R - is the inside radius of your vent tube. Vb - is the internal volume of your enclosure in cubic inches. To convert cubic feet to cubic inches, multiply by 1728. If you want to calculate square vents, the formula below will give you the value of R to use in the formula above. R=square root of ( A / Pi . Atleast this is what iv'e been told and what I have used. [/QUOTE]
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