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6 re 8's. box plans
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<blockquote data-quote="req" data-source="post: 518621" data-attributes="member: 555713"><p>WEEE thanks! this should help alot! i wonder why i couldnt find it on the search tho //content.invisioncic.com/y282845/emoticons/tomatoface.gif.6507032fedd1868ec0a6a447bb29a18a.gif</p><p></p><p>i still have this problem though. i DONT have the dimensions of the box. its going to be FIBERGLASS... i know its gonna be 1.2 cuft @ 37hz (for MY box) and 1.5cuft @ 35 for his box. but- how the hell do i fugre a SLOT style port without the box dimensions?</p><p></p><p>The formula to figure the displacement of a slot port is ((W+T) x H x D), where W = width, H = height, D = depth and T = board thickness.</p><p></p><p>im building the port and the bottom of the box from 3\8 mdf. so thats .75 - but where do i get width and height? and how the hell does this number (when i get it) have anything to do with the tuning?</p><p></p><p>is there another calculator to figure out what the port volume\tuning ratio is?</p><p></p><p>none of this is actually stated *clear* anywhere. its always PORT VOLUME or TUNING. i dunno, im just confused... //content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif</p><p></p><p>on the JL audio site;</p><p></p><p><img src="http://www.jlaudio.com/tutorials/ports/images/Fb.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Where Av is the cross-sectional area of the port (in square inches),</p><p></p><p>Lv is the length of the port (in inches)</p><p></p><p>and Vb is the enlcosure's net volume (in cubic inches).</p><p></p><p>*courtisy of <a href="http://www.jlaudio.com/tutorials/ports/index.html" target="_blank">JL audio</a></p><p></p><p>i dont know the ports dimensions, so how on earth am i supposed to figure out the tuning?</p></blockquote><p></p>
[QUOTE="req, post: 518621, member: 555713"] WEEE thanks! this should help alot! i wonder why i couldnt find it on the search tho [IMG]//content.invisioncic.com/y282845/emoticons/tomatoface.gif.6507032fedd1868ec0a6a447bb29a18a.gif[/IMG] i still have this problem though. i DONT have the dimensions of the box. its going to be FIBERGLASS... i know its gonna be 1.2 cuft @ 37hz (for MY box) and 1.5cuft @ 35 for his box. but- how the hell do i fugre a SLOT style port without the box dimensions? The formula to figure the displacement of a slot port is ((W+T) x H x D), where W = width, H = height, D = depth and T = board thickness. im building the port and the bottom of the box from 3\8 mdf. so thats .75 - but where do i get width and height? and how the hell does this number (when i get it) have anything to do with the tuning? is there another calculator to figure out what the port volume\tuning ratio is? none of this is actually stated *clear* anywhere. its always PORT VOLUME or TUNING. i dunno, im just confused... [IMG]//content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif[/IMG] on the JL audio site; [IMG]http://www.jlaudio.com/tutorials/ports/images/Fb.gif[/IMG] Where Av is the cross-sectional area of the port (in square inches), Lv is the length of the port (in inches) and Vb is the enlcosure's net volume (in cubic inches). *courtisy of [URL="http://www.jlaudio.com/tutorials/ports/index.html"]JL audio[/URL] i dont know the ports dimensions, so how on earth am i supposed to figure out the tuning? [/QUOTE]
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