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Message: <blockquote data-quote="BOOMINGRANDPA" data-source="post: 8574684" data-attributes="member: 671921"><p>alright best i can guess based on hodge podge of #'s u threw up is : 8.57 cf total, port is 1.45 cf = 7.12 idk what sub disp. is on that 18 so wild guessed it  at .25 cf (idk 18's) = 7.12 cf ad.. so if box is 35x35x15 (which is all u had to list instead of 1000 #) and port is 7wx13.5hx26.5l and it's just on 1 side of box (cause i only subtracted wood for that) u would be tuned at 31 hz.. if sub disp is smaller than it's tuned tad lower, if sub disp is bigger it tuned tad higher, if box is smaller than the # i listed it's tuned higher</p></blockquote><p></p>

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