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Liquid sound deadener?!?!?!
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<blockquote data-quote="Anthony Collova" data-source="post: 5071022" data-attributes="member: 558844"><p>I think that if you want similar results from the Spectrum you will need to apply it about 20% thicker than the Damplifier Pro.</p><p></p><p>No foil and different viscosity and elongation means different elastomeric value and different range of frequencies will be treated.</p><p></p><p>In car audio applications it is not nearly as important as.. lets say.. someone trying to quiet down a street rod from loud exhaust noise and tire noise. That requires more attention to detail with repsect to which product you use, how much, and the location it goes in the car.</p><p></p><p>In car audio application the main goal is simply to kill the audible vibrations keep the energy in the car. Mostly.</p><p></p><p>This is pretty easy to do, The range of musical frequensies effecting the sheet metal is pretty limited. 10 hz -1000 maybe..</p><p></p><p>Weather you use Damplifier Pro or Spectrum, you will certainly address those resonating frequencies. How much of them you address depends on a few things.</p><p></p><p>-Elastomeric value (effected greatly by temperature)</p><p></p><p>-Energy conversion- part foil thickness/strength, part adhesive considerations</p><p></p><p>-Total Weight - not as important but a good guage for value</p><p></p><p>Temperature is somthing many people do not take in to consideration as well.</p><p></p><p>The more stable we can keep the adhesive the wider the damping curve gets.</p><p></p><p>Here is an example.</p><p></p><p>Load up your car with a CLVED</p><p></p><p>park it in the sun for 4 hours</p><p></p><p>turn up the volume and burp your best test tone</p><p></p><p>Mark your score</p><p></p><p>Then par the car in an airconditioned garage for 4 hours</p><p></p><p>turn up the volume and burp your best test tone</p><p></p><p>Mark your score</p><p></p><p>Mostly likely you will hit higher numbers with the cooler car.</p><p></p><p>Elastomers get soft when they heat up. This changed the curve and thows everything off.</p><p></p><p>The more stable we can keep the product over a wider range of termperatures, the most consitant our damping results will be at different temperatures.</p><p></p><p>so in closing...</p><p></p><p>Don't punch babies..</p><p></p><p>ANT</p><p></p><p><a href="http://www.secondskinaudio.com" target="_blank">http://www.secondskinaudio.com</a></p></blockquote><p></p>
[QUOTE="Anthony Collova, post: 5071022, member: 558844"] I think that if you want similar results from the Spectrum you will need to apply it about 20% thicker than the Damplifier Pro. No foil and different viscosity and elongation means different elastomeric value and different range of frequencies will be treated. In car audio applications it is not nearly as important as.. lets say.. someone trying to quiet down a street rod from loud exhaust noise and tire noise. That requires more attention to detail with repsect to which product you use, how much, and the location it goes in the car. In car audio application the main goal is simply to kill the audible vibrations keep the energy in the car. Mostly. This is pretty easy to do, The range of musical frequensies effecting the sheet metal is pretty limited. 10 hz -1000 maybe.. Weather you use Damplifier Pro or Spectrum, you will certainly address those resonating frequencies. How much of them you address depends on a few things. -Elastomeric value (effected greatly by temperature) -Energy conversion- part foil thickness/strength, part adhesive considerations -Total Weight - not as important but a good guage for value Temperature is somthing many people do not take in to consideration as well. The more stable we can keep the adhesive the wider the damping curve gets. Here is an example. Load up your car with a CLVED park it in the sun for 4 hours turn up the volume and burp your best test tone Mark your score Then par the car in an airconditioned garage for 4 hours turn up the volume and burp your best test tone Mark your score Mostly likely you will hit higher numbers with the cooler car. Elastomers get soft when they heat up. This changed the curve and thows everything off. The more stable we can keep the product over a wider range of termperatures, the most consitant our damping results will be at different temperatures. so in closing... Don't punch babies.. ANT [URL="http://www.secondskinaudio.com"]http://www.secondskinaudio.com[/URL] [/QUOTE]
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