Reply to thread

Message

<blockquote data-quote="Bassick" data-source="post: 8155661" data-attributes="member: 656783"><p>Yes, I know there is a lot of calculations to do as for as tuning the ports, cause actually the main enclosure calculations would be for two ports. And after the resonate frequency of those ports are reached, the exposed port will transition back to loaded, so I&#039;m thinking that the internal port should be tuned slightly higher, how higher?, I don&#039;t know, but at some point it should unload just before the exposed port. As the exposed port is on the verge of unloading the second port unloads allowing the exposed port to see more air. (As enclosure increases port tuning decreases for given port). So to answer your question about where I would like for the outer port to unload: I would tune the outer port to 30 Hz, and tune the inner port to somewhere less than 32 Hz. The purpose is not to get really low but to have better cone control down to the lowest possible hertz that the subwoofer can handle. The more you think about this concept, the more problems you encounter and unpredictabilty sets in. [ATTACH]26544550[/ATTACH]</p></blockquote><p></p>

[QUOTE="Bassick, post: 8155661, member: 656783"] Yes, I know there is a lot of calculations to do as for as tuning the ports, cause actually the main enclosure calculations would be for two ports. And after the resonate frequency of those ports are reached, the exposed port will transition back to loaded, so I'm thinking that the internal port should be tuned slightly higher, how higher?, I don't know, but at some point it should unload just before the exposed port. As the exposed port is on the verge of unloading the second port unloads allowing the exposed port to see more air. (As enclosure increases port tuning decreases for given port). So to answer your question about where I would like for the outer port to unload: I would tune the outer port to 30 Hz, and tune the inner port to somewhere less than 32 Hz. The purpose is not to get really low but to have better cone control down to the lowest possible hertz that the subwoofer can handle. The more you think about this concept, the more problems you encounter and unpredictabilty sets in. [ATTACH=CONFIG]26544550[/ATTACH] [/QUOTE]

Verification