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Enclosure Design & Construction
2 ports vs 1 for two tens.
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<blockquote data-quote="PSturmer" data-source="post: 8227412" data-attributes="member: 568966"><p>well what you should do is plug three ports, so you have just one being active. then what you wanna do is study the air velocity. play a song with a lower frequency and turn it up and see how much air velocity there is. yes there are formulas to calculate the port area required, but that is just a "general rule of thumb". in reality what matters is the air velocity. if the port air speed is too low the box will sound hollow and not get low, and if the air speed is too fast then air turbulence and box impedance rise can be problematic.</p></blockquote><p></p>
[QUOTE="PSturmer, post: 8227412, member: 568966"] well what you should do is plug three ports, so you have just one being active. then what you wanna do is study the air velocity. play a song with a lower frequency and turn it up and see how much air velocity there is. yes there are formulas to calculate the port area required, but that is just a "general rule of thumb". in reality what matters is the air velocity. if the port air speed is too low the box will sound hollow and not get low, and if the air speed is too fast then air turbulence and box impedance rise can be problematic. [/QUOTE]
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2 ports vs 1 for two tens.
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