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<blockquote data-quote="UCF52" data-source="post: 2773710" data-attributes="member: 569085">i am currently building a box for a 12&quot; JL W6.V1. it will probably end up being used as a compnent sub for home theater.&nbsp; anyways i am using the JL recommended box on the spec sheet (2.25^3 ported). it calls for 2 circular ports that measure 2.5&quot; in diameter and 13.6&quot; in length.&nbsp; well i went to home depot and could only find 3&quot; diameter pvc.&nbsp; my question is, can i use the 3&quot; pvc and reduce the length of the port to match the same port volume as the 2.5&quot; recommended - in this case 9.44&quot; (instead of the 13.6&quot;)?? or should i stop being a lazy *** and go to another store and get the proper pvc??volume&nbsp; 2.5&quot; @ 13.6&quot; = 66.75^3volume&nbsp; 3&quot; @ 9.44&quot; = 66.73^3also, why doesnt the spec sheet have the frequency the box is tuned to? can i calculate the frequency of the box?? (i didn&#039;t search it yet)</blockquote>

[QUOTE="UCF52, post: 2773710, member: 569085"] i am currently building a box for a 12" JL W6.V1. it will probably end up being used as a compnent sub for home theater. anyways i am using the JL recommended box on the spec sheet (2.25^3 ported). it calls for 2 circular ports that measure 2.5" in diameter and 13.6" in length. well i went to home depot and could only find 3" diameter pvc. my question is, can i use the 3" pvc and reduce the length of the port to match the same port volume as the 2.5" recommended - in this case 9.44" (instead of the 13.6")?? or should i stop being a lazy *** and go to another store and get the proper pvc?? volume 2.5" @ 13.6" = 66.75^3 volume 3" @ 9.44" = 66.73^3 also, why doesnt the spec sheet have the frequency the box is tuned to? can i calculate the frequency of the box?? (i didn't search it yet) [/QUOTE]

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