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How does a 4th order bandpass work?
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<blockquote data-quote="0kriz" data-source="post: 8794102" data-attributes="member: 686065"><p></p></blockquote><p>Mr858 nailed it, sub compatibility + tuning + install.</p><p>Match fs to tuning or close with a ratio to match environmental gains and its a winner.</p><p>Allow for power... That echo chamber needs a bit of area but understand the mechanics and how loading affects output.</p><p>Compatibility, tuning, ratio and install go into any 4th design.</p><p>Open air? Ok... Space makes bass.</p><p>Understand wavelengths at that point, throw out what you think any woofer needs space-wise and learn hornsrep then design around a pro audio woofer. A 4th may not be your go to at that point</p><p>35hz is low pro audio 30hz is insane. Without cabin gain I'd say best bet is something horn loaded as mentioned.</p><p>[/QUOTE]</p><p></p><p>For an amature weekend DJ, 35hz is low. For a concert or large event with music genres oriented around bass/sub frequencies, the rental company provide a soundsystem with the nessesary frequency response and sound pressure level, low 30hz is not unusual. Sound engineers tend to have more than enough “rig for the gig” on serious jobs. This however get outside the point, I was not sure if 4th order would work for pro audio, it was only a thought i was playing with, i know some have made it, but this thread was mainly because I was curious about an enclosure type i have never built before. I just could not make sense why this design would be effective compared to a bass reflex system.</p><p>[/QUOTE]</p>
[QUOTE="0kriz, post: 8794102, member: 686065"] [/QUOTE] Mr858 nailed it, sub compatibility + tuning + install. Match fs to tuning or close with a ratio to match environmental gains and its a winner. Allow for power... That echo chamber needs a bit of area but understand the mechanics and how loading affects output. Compatibility, tuning, ratio and install go into any 4th design. Open air? Ok... Space makes bass. Understand wavelengths at that point, throw out what you think any woofer needs space-wise and learn hornsrep then design around a pro audio woofer. A 4th may not be your go to at that point 35hz is low pro audio 30hz is insane. Without cabin gain I'd say best bet is something horn loaded as mentioned. [/QUOTE] For an amature weekend DJ, 35hz is low. For a concert or large event with music genres oriented around bass/sub frequencies, the rental company provide a soundsystem with the nessesary frequency response and sound pressure level, low 30hz is not unusual. Sound engineers tend to have more than enough “rig for the gig” on serious jobs. This however get outside the point, I was not sure if 4th order would work for pro audio, it was only a thought i was playing with, i know some have made it, but this thread was mainly because I was curious about an enclosure type i have never built before. I just could not make sense why this design would be effective compared to a bass reflex system. [/QUOTE]
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How does a 4th order bandpass work?
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