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<blockquote data-quote="c0la" data-source="post: 583983" data-attributes="member: 555919">My g/f is buying a set of ma audio ma1550w 15&#039;s<a href="http://www.maaudio.com/files/Final%20MA%20W%20Series.pdf" target="_blank">http://www.maaudio.com/files/Final%20MA%20W%20Series.pdf</a>Optimum Vented Box: 3.25 Cu/Ft per sub,,,,so 6.5 cu/ft total?Square Port Area: 37 Sq/InPort Length: 12.5â€she is aiming for a setup of sq/spl to be 70/30. so i suggested the&nbsp; box be tuned to 35 htz but on their website it shows the tuning to be 42 with given info on port.I already have the height and length determined to avoid fitment issues which are 36L x 15.5 H x _ D(fill in the blank)these are the external dimensions!The internal dimensions are 34.5L x 14H x _ D the way i figure it, it should be 23.25&quot; but this is not taking in account for the port displacementIm guessing the port will be 14&quot;tall but what&#039;s the length and depth need to be?I need to have some numbers plugged in so that i can build the thing</blockquote>

[QUOTE="c0la, post: 583983, member: 555919"] My g/f is buying a set of ma audio ma1550w 15's [URL="http://www.maaudio.com/files/Final%20MA%20W%20Series.pdf"]http://www.maaudio.com/files/Final%20MA%20W%20Series.pdf[/URL] Optimum Vented Box: 3.25 Cu/Ft per sub,,,,so 6.5 cu/ft total? Square Port Area: 37 Sq/In Port Length: 12.5â€ she is aiming for a setup of sq/spl to be 70/30. so i suggested the box be tuned to 35 htz but on their website it shows the tuning to be 42 with given info on port. I already have the height and length determined to avoid fitment issues which are 36L x 15.5 H x _ D(fill in the blank)these are the external dimensions! The internal dimensions are 34.5L x 14H x _ D the way i figure it, it should be 23.25" but this is not taking in account for the port displacement Im guessing the port will be 14"tall but what's the length and depth need to be? I need to have some numbers plugged in so that i can build the thing [/QUOTE]

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