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Message: <blockquote data-quote="C1500martin" data-source="post: 8255047" data-attributes="member: 660515"><p>Hey guys im building a custom box for a Fi Q12 that will be in my single cab gmc c1500. my total enclosure volume after displacement is 2.23801. I want to tune it at 30 Hz. according to the online calculators ive been using i would need rather a slot port of 2x2in with a length of 3.7in, or a round port with a diameter of 3 in and a length of 3.70in. Does this seem correct? does it matter where the ports are located or if i should do 1 or multiple ports? im very confused and new to this whole tuning thing. Any help would be greatly appreciated. Thanks!</p></blockquote><p></p>

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