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<blockquote data-quote="msrpIZtooMUCH" data-source="post: 1400599" data-attributes="member: 565422">Squeak, how exactly are those frequency ranges obtained and why would they be useless?As far as cone size and SQ...if the 15s and 18s have added output at the lower subwoofer frequency range (10hz-30hz), then they would lack output at the higher subwoofer frequency range (35hz-70hz). The 10s and 12s would be the other way around having less output at the lower range and more at the upper end. This is why 15s and 18s are nice when listening to rap or all out bass music, but for more dynamic music they don&#039;t seem to do as well. Yeah, they all play the same notes, or close to it, but it&#039;s just a matter of where peak output is. Where you want that to be, would be depends on what you listen to. Sure, you could build an SQ system with 18s for subs, but you better have a good front stage to keep up with them...such as 8s or 10s in the doors that can play cleanly down to 40hz (give or take a few hz). I&#039;m not saying it can&#039;t be done, but 10s and 12s are more well suited for SQ.</blockquote>

[QUOTE="msrpIZtooMUCH, post: 1400599, member: 565422"] Squeak, how exactly are those frequency ranges obtained and why would they be useless? As far as cone size and SQ...if the 15s and 18s have added output at the lower subwoofer frequency range (10hz-30hz), then they would lack output at the higher subwoofer frequency range (35hz-70hz). The 10s and 12s would be the other way around having less output at the lower range and more at the upper end. This is why 15s and 18s are nice when listening to rap or all out bass music, but for more dynamic music they don't seem to do as well. Yeah, they all play the same notes, or close to it, but it's just a matter of where peak output is. Where you want that to be, would be depends on what you listen to. Sure, you could build an SQ system with 18s for subs, but you better have a good front stage to keep up with them...such as 8s or 10s in the doors that can play cleanly down to 40hz (give or take a few hz). I'm not saying it can't be done, but 10s and 12s are more well suited for SQ. [/QUOTE]

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