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<blockquote data-quote="spydyplayer" data-source="post: 913384" data-attributes="member: 550182"><p>Okay...I just got done doing the huge port formula and came up with an off the wall number so here goes my situation.....I&#039;m building a ported box....The external dimensions would be 38&quot; by 38&quot; by 15&quot;. This would make the internal dimensions 36.5&quot; by 36.5&quot; by 13.5&quot;. I want the box to have an airspace of 6 ft^3 @ 35 hz. I was thinking I would make my port 35&quot; by 4&quot;...or a port area of 140 in^2...When I plug all of this into the formula...I come up with a port length of 4.334 in long....That doesn&#039;t seem right to me...Maybe it is because my port area is so huge...I&#039;m not totally sure...I&#039;m completely new to the ported box building as all I&#039;ve ever built have been sealed. Can somebody point me in the right direction? I have a feeling that my fault lies in the chosen size of my port but who knows...Also... in the thread about building a ported box with George or whatever....which I am using to guide me through my box building adventure...He refers to the second wall...This is where I got lost...can somebody help me...I&#039;m goin nuts...Maybe a drawn diagram of his idea might help.........Thanks in advance to whomever should attempt to help me.</p></blockquote><p></p>

[QUOTE="spydyplayer, post: 913384, member: 550182"] Okay...I just got done doing the huge port formula and came up with an off the wall number so here goes my situation.....I'm building a ported box....The external dimensions would be 38" by 38" by 15". This would make the internal dimensions 36.5" by 36.5" by 13.5". I want the box to have an airspace of 6 ft^3 @ 35 hz. I was thinking I would make my port 35" by 4"...or a port area of 140 in^2...When I plug all of this into the formula...I come up with a port length of 4.334 in long....That doesn't seem right to me...Maybe it is because my port area is so huge...I'm not totally sure...I'm completely new to the ported box building as all I've ever built have been sealed. Can somebody point me in the right direction? I have a feeling that my fault lies in the chosen size of my port but who knows...Also... in the thread about building a ported box with George or whatever....which I am using to guide me through my box building adventure...He refers to the second wall...This is where I got lost...can somebody help me...I'm goin nuts...Maybe a drawn diagram of his idea might help.........Thanks in advance to whomever should attempt to help me. [/QUOTE]

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