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Custom Box for Truck; Size constraints - Help & Tips needed
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<blockquote data-quote="Doxquzme" data-source="post: 8867622" data-attributes="member: 689267"><p>Well, you know what they say about opinions, they are like a$$holes, everyone's got one! In order to get the most bang for buck out of those woofers, and in lieu of the primary beneficiary of the sound they will create, I definitely think that ported is the way to go. Sealed is often equated with SQ systems, and in some reaposects that is true. That said, this driver sealed produced a pretty high f3 of around 43hz, which is the 3db down point from 46 hz, pretty high for a 12". I was able to get the QTC down to around 710 when modeling it and that is around 34 hz, ported, not sealed. Sealed remained around 757 which is fine, but a little lower is fine too.</p><p></p><p>A Qtc = to <em>0.707</em> is the optimum value for sealed enclosures, providing flattest response and highest SPL for deep bass extension. This box gets you close.</p><p></p><p>IMHO. Not sure what criteria the broski-in-law is using, but more often than not, a little knowledge is more dangerous than complete ignorance.</p><p></p><p>At any rate, with cabin gain and the lower tuning point, I think that your son will be very happy with the results.</p></blockquote><p></p>
[QUOTE="Doxquzme, post: 8867622, member: 689267"] Well, you know what they say about opinions, they are like a$$holes, everyone's got one! In order to get the most bang for buck out of those woofers, and in lieu of the primary beneficiary of the sound they will create, I definitely think that ported is the way to go. Sealed is often equated with SQ systems, and in some reaposects that is true. That said, this driver sealed produced a pretty high f3 of around 43hz, which is the 3db down point from 46 hz, pretty high for a 12". I was able to get the QTC down to around 710 when modeling it and that is around 34 hz, ported, not sealed. Sealed remained around 757 which is fine, but a little lower is fine too. A Qtc = to [I]0.707[/I] is the optimum value for sealed enclosures, providing flattest response and highest SPL for deep bass extension. This box gets you close. IMHO. Not sure what criteria the broski-in-law is using, but more often than not, a little knowledge is more dangerous than complete ignorance. At any rate, with cabin gain and the lower tuning point, I think that your son will be very happy with the results. [/QUOTE]
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