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Message: <blockquote data-quote="Mitch86" data-source="post: 2320886" data-attributes="member: 568012">I'm now converting my failed attempt at bandpass into a ported enclosure tuned to 40 hz. I tried using several round port calculators thinking it'd be easiest to go get some pvc and just do it that way. Deminsions of the box are roughly 18x30x123.75^3 before displacements. I also plan to do alot of renforcing to take up some of that space that is not needed. so let's say 2.9-3.0 cubes tuned to 40hz. When I calculate that on several online calculators I get some odd 1.6456 inches. That cant be correct...can it? Btw, this is for an 06 L7 12".</blockquote>

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