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<blockquote data-quote="1aespinoza" data-source="post: 8827665" data-attributes="member: 654802"><p>Sq. in. is the measurement of an area. They forgot to tell you the length of the port.</p><p>For your round port the formula is ></p><p>Volume = radius squared × 3.14 × length</p><p>Radius of 2 is 1. So 1×1=1 then 1 × 3.14 = 3.14</p><p>Length is 3. So 3.14 × 3 = 9.42</p><p>So the round port is 9.42 cubic inches</p><p>Their slot port is already bigger just by area alone. IMO, the 9.52 cu.in. sounds about right for an 8" 400 watts subwoofer. I found this somewhere a long time ago ></p><p>[ATTACH=full]46770[/ATTACH]</p></blockquote><p></p>
[QUOTE="1aespinoza, post: 8827665, member: 654802"] Sq. in. is the measurement of an area. They forgot to tell you the length of the port. For your round port the formula is > Volume = radius squared × 3.14 × length Radius of 2 is 1. So 1×1=1 then 1 × 3.14 = 3.14 Length is 3. So 3.14 × 3 = 9.42 So the round port is 9.42 cubic inches Their slot port is already bigger just by area alone. IMO, the 9.52 cu.in. sounds about right for an 8" 400 watts subwoofer. I found this somewhere a long time ago > [ATTACH type="full" alt="Screenshot_20201103-211455.png"]46770[/ATTACH] [/QUOTE]
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