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<blockquote data-quote="chrislee8" data-source="post: 805538" data-attributes="member: 560243">I have a eclipse 88100.4. it is 10&quot; aluminum sub.Here is some spec:Vas: 2.94 Ft2.Enclosure Volume Example:1 Ft2(Cubic Foot) = 12&quot; x 12&quot; x 12&quot; = 1728&quot;1.5 Ft2 box = 12&quot; x 12&quot; x 18&quot; = 2592&quot;/1728 = 1.5 Ft2Woofer Internal Volume Table: 10&quot; is 0.09Ft2According to the above spec, I am confused.What does the Vas mean? Does it mean it is the box volume supposed to be?What does the Woofer Internal volume mean?Does all the spec mean: 2.94 Ft2 is the box volumn supposed to be? then2.94 = 12x12xA/1728 -&amp;gt;144A = 1728x2.94 -&amp;gt;A = 35.28&quot;so assume H=12&quot; W=12&quot; then the D is supposed to be 35.28&quot;then how the internal volume number come into play?Did I calculate that in a proper way? If not, please advise.Thanks in advanced.</blockquote>

[QUOTE="chrislee8, post: 805538, member: 560243"] I have a eclipse 88100.4. it is 10" aluminum sub. Here is some spec: Vas: 2.94 Ft2. Enclosure Volume Example: 1 Ft2(Cubic Foot) = 12" x 12" x 12" = 1728" 1.5 Ft2 box = 12" x 12" x 18" = 2592"/1728 = 1.5 Ft2 Woofer Internal Volume Table: 10" is 0.09Ft2 According to the above spec, I am confused. What does the Vas mean? Does it mean it is the box volume supposed to be? What does the Woofer Internal volume mean? Does all the spec mean: 2.94 Ft2 is the box volumn supposed to be? then 2.94 = 12x12xA/1728 -> 144A = 1728x2.94 -> A = 35.28" so assume H=12" W=12" then the D is supposed to be 35.28" then how the internal volume number come into play? Did I calculate that in a proper way? If not, please advise. Thanks in advanced. [/QUOTE]

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