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subsonic filter
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<blockquote data-quote="ShaunMac" data-source="post: 275593" data-attributes="member: 547000"><p>lower tuning = fuller, lower bass response. More SQ</p><p></p><p>Tuning 28Hz or 30Hz wouldn't need a sub-sonic filter.</p><p></p><p>You could get away with not using one. Depends on the source material that you are playing.</p><p></p><p>Most source material won't have large amounts of energy below 30Hz or so. If you listen to a lot of digital Bass CD's you would want to have a sub-sonic filter to protect your sub from harmful freq. Many Bass CD's contain 20Hz and lower material.</p><p></p><p>Just to be safe, I would use a sub-sonic filter at any tuning freq.</p><p></p><p>My enclosure is tuned @33Hz. My SS filter is set @27Hz.</p><p></p><p>Without the sub-sonic filter the subwoofer becomes unstable below the tuning freq. Which can cause terminal damage to the subwoofer. Especially with high power applications.</p></blockquote><p></p>
[QUOTE="ShaunMac, post: 275593, member: 547000"] lower tuning = fuller, lower bass response. More SQ Tuning 28Hz or 30Hz wouldn't need a sub-sonic filter. You could get away with not using one. Depends on the source material that you are playing. Most source material won't have large amounts of energy below 30Hz or so. If you listen to a lot of digital Bass CD's you would want to have a sub-sonic filter to protect your sub from harmful freq. Many Bass CD's contain 20Hz and lower material. Just to be safe, I would use a sub-sonic filter at any tuning freq. My enclosure is tuned @33Hz. My SS filter is set @27Hz. Without the sub-sonic filter the subwoofer becomes unstable below the tuning freq. Which can cause terminal damage to the subwoofer. Especially with high power applications. [/QUOTE]
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