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Enclosure Design & Construction
6th order
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<blockquote data-quote="shredder2" data-source="post: 8694690" data-attributes="member: 674047"><p>A 4th friendly sub will have an Ebp that's mid range-low... understand that a 4th will have a sealed type extension and ratio will affect your results.</p><p>A mid-hi Ebp sub will shine in a 6th... ratio can determine the balance in either... (watch velocities, excursion and response... so don't fall asleep at the mouse).</p><p>4th orders tend to be tuned 40's-60's on the ported side as they exhibit that sealed type low end extension, 6ths can increase output/extend the bandpass but may dip/peak in the center if tuned too far apart/close. An octave spread in a 6th seems to work well and ratio can be used to smooth or add peakiness as well but watch low end extension...</p><p>... Once again... it's in a vehicle... lows WILL be augmented by the cabin...</p><p>... it's a bandpass either way you go... remember that... so try to tailor your output accordingly along with a strong frontstage.</p><p>There ARE exceptions to all that B.S. I spewed but for a general rule they should apply.</p><p>I'm done pontificating on this subject... someone call B.S. if I'm spreading disinformation</p></blockquote><p></p>
[QUOTE="shredder2, post: 8694690, member: 674047"] A 4th friendly sub will have an Ebp that's mid range-low... understand that a 4th will have a sealed type extension and ratio will affect your results. A mid-hi Ebp sub will shine in a 6th... ratio can determine the balance in either... (watch velocities, excursion and response... so don't fall asleep at the mouse). 4th orders tend to be tuned 40's-60's on the ported side as they exhibit that sealed type low end extension, 6ths can increase output/extend the bandpass but may dip/peak in the center if tuned too far apart/close. An octave spread in a 6th seems to work well and ratio can be used to smooth or add peakiness as well but watch low end extension... ... Once again... it's in a vehicle... lows WILL be augmented by the cabin... ... it's a bandpass either way you go... remember that... so try to tailor your output accordingly along with a strong frontstage. There ARE exceptions to all that B.S. I spewed but for a general rule they should apply. I'm done pontificating on this subject... someone call B.S. if I'm spreading disinformation [/QUOTE]
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