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Message: <blockquote data-quote="laidback" data-source="post: 8242854" data-attributes="member: 660099">i have no clue how to calculate the ports for a ported box. i have always built sealed boxes till now. my two sd2's are coming now and its time to start on the box. it will be a wedge shaped box internal dims are 5" at top 8.5" at bottom and 24" wide 12" tall. this would be one chamber by my calculations that would be a total of 1.124ft3. is a ported box even doable? if you minus the displacement that gives you right at 1.0ft3. thats what SA suggests. but that leaves no room for the pot displacement. can you externally port a box? meaning if the port is say 10" long, can u put that on the outside of the box?i like this design[ATTACH]26547351[/ATTACH]</blockquote>

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