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<blockquote data-quote="thecat666" data-source="post: 6314796" data-attributes="member: 612033">i have a slot port that i want to divide by 2 so i can have port on each side of box, do i just divide the port by 2 or is their a formula for splitting slot ports into 2. all this so i can then have sub can sit in the middle of cab.was told this,Half the opening, keep the length the same. Will be near as **** it the same tuning.3.4 cft internal. the port height is 419mm that will stay the same the width of port is 88mm that will half to 44mm length to stay at 20.i was given formula to work out width of port. cuft of box after displacement x 16 = sq in of port opening then dividing this by internal height gives me the port width.recomended lengh for dd tuning was 20 inches gives between 35-40 hz.so my way of thinking is 88mm x 419mm / 508mm longeg 44mm x 419 /508 long x2. is this correct1 port on each side of box</blockquote>

[QUOTE="thecat666, post: 6314796, member: 612033"] i have a slot port that i want to divide by 2 so i can have port on each side of box, do i just divide the port by 2 or is their a formula for splitting slot ports into 2. all this so i can then have sub can sit in the middle of cab. was told this, Half the opening, keep the length the same. Will be near as **** it the same tuning. 3.4 cft internal. the port height is 419mm that will stay the same the width of port is 88mm that will half to 44mm length to stay at 20.i was given formula to work out width of port. cuft of box after displacement x 16 = sq in of port opening then dividing this by internal height gives me the port width.recomended lengh for dd tuning was 20 inches gives between 35-40 hz. so my way of thinking is 88mm x 419mm / 508mm long eg 44mm x 419 /508 long x2. is this correct 1 port on each side of box [/QUOTE]

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