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Enclosure Design & Construction
4th Order Bandpass. 8" woofer
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<blockquote data-quote="winkychevelle" data-source="post: 8812234" data-attributes="member: 611804"><p>No not really that one has a big bump at the low end. That's not really an issue but with cabin gain the bump can turn into a hell of a spike. Again depending on use it's not a bad thing. </p><p></p><p>The problem is that 4th orders hide distortion pretty good so by the time you notice it it's usually too late and damage is done.</p><p></p><p>A more flat response means you aren't trying to boost the other frequencies that you really can't to match that huge bump in frequency response. </p><p></p><p>I typically tune to 36hz for my truck because I know the cabin gain allows me to play down into the mid 20s fairly well. Not that I play that low as I usually put my sub sonic filter at 28hz anyway. But this allows me to tun slightly higher to allow for a flatter response curve for a wide frequency range.</p><p></p><p>In my opinion without knowing you cabin gain which requires several measurements with calibrated mics you are best served tuning around 34-38hz for most ported boxes and bandpass I would want my bump to peak in the same range.</p><p></p><p>Lower if you listen to more decaf, and rebassed music, and higher for more rock. Country topically requires the sub stage to be turned down in my opinion less the bass guitar takes over everything. </p><p></p><p>If you want a wind monster tune low, most demo builds are tuned from 36-28hz in my experience because they move a crap load of air</p></blockquote><p></p>
[QUOTE="winkychevelle, post: 8812234, member: 611804"] No not really that one has a big bump at the low end. That's not really an issue but with cabin gain the bump can turn into a hell of a spike. Again depending on use it's not a bad thing. The problem is that 4th orders hide distortion pretty good so by the time you notice it it's usually too late and damage is done. A more flat response means you aren't trying to boost the other frequencies that you really can't to match that huge bump in frequency response. I typically tune to 36hz for my truck because I know the cabin gain allows me to play down into the mid 20s fairly well. Not that I play that low as I usually put my sub sonic filter at 28hz anyway. But this allows me to tun slightly higher to allow for a flatter response curve for a wide frequency range. In my opinion without knowing you cabin gain which requires several measurements with calibrated mics you are best served tuning around 34-38hz for most ported boxes and bandpass I would want my bump to peak in the same range. Lower if you listen to more decaf, and rebassed music, and higher for more rock. Country topically requires the sub stage to be turned down in my opinion less the bass guitar takes over everything. If you want a wind monster tune low, most demo builds are tuned from 36-28hz in my experience because they move a crap load of air [/QUOTE]
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4th Order Bandpass. 8" woofer
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