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General Car Audio
Need advice on SPL build.
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<blockquote data-quote="Rudy" data-source="post: 7327088" data-attributes="member: 568035"><p>That's a lot of good and logical advice. The only thing I'll take issue with is the use of deadener (vibration damper). You've rightly pointed out how important it is to seal air leaks. In most cases when applying vibration damper improves things, it's because it sealed some leaks.</p><p></p><p>What you really want to do is stiffen the panels. Vibration damper is a pretty ineffective way to do it. Vibration damper stiffens the panel slightly but has an offsetting mechanism that can hurt you - it works by converting vibration - which can become sound, into heat - which can't. These factors combined explain why adding vibration damper sometimes produces a slight improvement, sometimes a slight loss and sometimes no change at all. Seal the leaks and find ways to make the panels rigid and you can be confident that all of your efforts are moving things in the right direction.</p></blockquote><p></p>
[QUOTE="Rudy, post: 7327088, member: 568035"] That's a lot of good and logical advice. The only thing I'll take issue with is the use of deadener (vibration damper). You've rightly pointed out how important it is to seal air leaks. In most cases when applying vibration damper improves things, it's because it sealed some leaks. What you really want to do is stiffen the panels. Vibration damper is a pretty ineffective way to do it. Vibration damper stiffens the panel slightly but has an offsetting mechanism that can hurt you - it works by converting vibration - which can become sound, into heat - which can't. These factors combined explain why adding vibration damper sometimes produces a slight improvement, sometimes a slight loss and sometimes no change at all. Seal the leaks and find ways to make the panels rigid and you can be confident that all of your efforts are moving things in the right direction. [/QUOTE]
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Need advice on SPL build.
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