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Enclosure Design & Construction
Thinking inside the box
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<blockquote data-quote="Bassick" data-source="post: 8155604" data-attributes="member: 656783"><p>No, only one port is exposed to the outside. the other two ports are internal. the purpose of this type of enclosure is to have more bass extension with better cone control. Think about this, at port resonance the subwoofer barely moves but below port resonance the port unloads, what if instead of unloading the port could adjust to a lower resonance and thus better controlling the subwoofer. But, it is physically impossible for the port itself to adjust, but if you have another chamber inside the enclosure thats ported and closed off and tuned to such that it will unload along with the port that exposed to the outside. When the inside port unloads the exposed port will see a bigger box (more cubic feet) thus changing the resonance. You have to understand this is just theory. Please, if you do not completely understand this concept, do not reply with the "why not just go with ......" or "have you ever heard of ....." answers. I'm actually looking for expert opinions only.[ATTACH]26544544[/ATTACH]</p></blockquote><p></p>
[QUOTE="Bassick, post: 8155604, member: 656783"] No, only one port is exposed to the outside. the other two ports are internal. the purpose of this type of enclosure is to have more bass extension with better cone control. Think about this, at port resonance the subwoofer barely moves but below port resonance the port unloads, what if instead of unloading the port could adjust to a lower resonance and thus better controlling the subwoofer. But, it is physically impossible for the port itself to adjust, but if you have another chamber inside the enclosure thats ported and closed off and tuned to such that it will unload along with the port that exposed to the outside. When the inside port unloads the exposed port will see a bigger box (more cubic feet) thus changing the resonance. You have to understand this is just theory. Please, if you do not completely understand this concept, do not reply with the "why not just go with ......" or "have you ever heard of ....." answers. I'm actually looking for expert opinions only.[ATTACH=CONFIG]26544544[/ATTACH] [/QUOTE]
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