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<blockquote data-quote="cotjones" data-source="post: 3431277" data-attributes="member: 573988">hey dipshit,&nbsp; i said it was a guess...and i know what resonance is, it is the frequency at which an object naturally vibrates...i thought we was asking what causes the resonant frequency... that i don&#039;t exactly knowit doesn&#039;t matter what matters is that if a sub has a lower Fs then it plays louder lower in free air...and when comparing 2 subs in common sealed enclosures, you can infer that because a sub plays lower in free air it will also play lower in a sealed enclosure, you cannot infer this about ported enclosures because of the vast tuning possibilities...between different sizes of the same series you can&#039;t as easily infer this because you could also change the size of the sealed box which would affect resonance...i&#039;m assuming that in the same series, the manufacterer&#039;s will change the recomended sealed enclosure with sub size (which most do)so you can infer that when determining the difference between an 8 an a 15 in sealed enclosures the difference between the output at 20 hz will be greater than the difference at 150hz</blockquote>

[QUOTE="cotjones, post: 3431277, member: 573988"] hey dipshit, i said it was a guess... and i know what resonance is, it is the frequency at which an object naturally vibrates... i thought we was asking what causes the resonant frequency... that i don't exactly know it doesn't matter what matters is that if a sub has a lower Fs then it plays louder lower in free air... and when comparing 2 subs in common sealed enclosures, you can infer that because a sub plays lower in free air it will also play lower in a sealed enclosure, you cannot infer this about ported enclosures because of the vast tuning possibilities... between different sizes of the same series you can't as easily infer this because you could also change the size of the sealed box which would affect resonance... i'm assuming that in the same series, the manufacterer's will change the recomended sealed enclosure with sub size (which most do) so you can infer that when determining the difference between an 8 an a 15 in sealed enclosures the difference between the output at 20 hz will be greater than the difference at 150hz [/QUOTE]

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