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<blockquote data-quote="Stem" data-source="post: 1479735" data-attributes="member: 564115">OK I need some help. I just got my 15&quot; in yesterday and now i need to build a box. Im gonna make it ported. Its a RE SX, and RE&#039;s recommendation is it be 3.5 cubic feet PORTED. But i dont know how to find the volume of a box with the port. Im gonna use a rectangular port... not pvc tubes. And via enclosure calculators i found out that if i make a box (WxHxD) 30&quot;x17&quot;x15.2&quot; it will be 3.50 cubic feet. BUT how do i find out the port, i dont know where to subtract or an equation. Dont gimme any of that GOOGLE IT, crap because ive checked and all those calculators are for circular ports. So can someone help me out please. BTW i can fit a 43&quot; wide and 17&quot; high box in my trunk. Thats the max. So if someone can tell me the equation or help me out, or even make some plans that would be awesome.StemBTW: PS: The port im gonna make is 32 Hz. So i&#039;d need to know the width of the port, since it will be 15.5&quot; high and 14.5&quot; deep.</blockquote>

[QUOTE="Stem, post: 1479735, member: 564115"] OK I need some help. I just got my 15" in yesterday and now i need to build a box. Im gonna make it ported. Its a RE SX, and RE's recommendation is it be 3.5 cubic feet PORTED. But i dont know how to find the volume of a box with the port. Im gonna use a rectangular port... not pvc tubes. And via enclosure calculators i found out that if i make a box (WxHxD) 30"x17"x15.2" it will be 3.50 cubic feet. BUT how do i find out the port, i dont know where to subtract or an equation. Dont gimme any of that GOOGLE IT, crap because ive checked and all those calculators are for circular ports. So can someone help me out please. BTW i can fit a 43" wide and 17" high box in my trunk. Thats the max. So if someone can tell me the equation or help me out, or even make some plans that would be awesome. Stem BTW: PS: The port im gonna make is 32 Hz. So i'd need to know the width of the port, since it will be 15.5" high and 14.5" deep. [/QUOTE]

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