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Message: <blockquote data-quote="moparerrnocar" data-source="post: 7979274" data-attributes="member: 624321">I want to build a center slot box for two 12's using .75 material, the subs qts is .106. I want the box to be 36x13x22 tuned @ 32. How wide will the port need to be?Using RE's calculator (I heard doesn't account for port displacement) it says if my port is 3.75" I'll be @ 31.08 with a box vol of 4.104. If I change 36 to 35 (for estimated sub displacement) it accounts for .137 and changes the tuning to 31.61.I don't know how much volume the port will take up. Would it be tuned close to 32 after port displacement, or is that already accounted for?</blockquote>

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