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Proper Door Sound Deadening and You
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<blockquote data-quote="Jeffdachef" data-source="post: 8522867" data-attributes="member: 650438"><p>you are in luck, there's two</p><p></p><p>here's his older one</p><p></p><p><a href="http:////forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html" target="_blank">http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html</a></p><p></p><p>Here's a recent one.</p><p></p><p><a href="http:////forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html" target="_blank">http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html</a></p><p></p><p>Its not just deadening, its an overall acoustical treatment as well. Using deadener to cover holes doesnt work anywhere near as well as MLV or sheet metal or other ridgid substances with actual heavy mass, I witness the difference live. Mainly because deadener is not a solid stiff material, its still a mound of butyl with a thin layer of aluminium. With midbass notes, it will cause it to flex and vibrate which really dramatically decreases midbass potentiial vs solid hard mass like Mass loaded vinyl, aluminium sheet metal or even wood(not a good idea in wet doors though)</p><p></p><p>Also the issue of of door panel rattle as well which needs some major decoupling with closed cell foam. so when you play very strong midbass notes, you dont get any resonances, or miniscule rattles. Deadener does not help eliminate these issues, they might slightly alleviate but they will be prevalent with strong drivers on high power. Especially where the panel clips are sometimes as well</p><p></p><p>The issue of the rear wave needs to be addressed as well as making a proper seal between the plastic door panel and the mounted speaker.</p><p></p><p>Here's also a video as well</p><p></p><p>[MEDIA=youtube]h3EXuHlBy4M[/MEDIA]</p><p></p><p></p><p></p><p>Also It might be a different story if you are using competition level deadener like this to cover the holes. This vibraflex deadener stiffens up real well after application so its not just deadening but also provides flex control and extra damping.</p><p></p><p><a href="http://s1271.photobucket.com/user/nkrell11/media/IMG_20150527_134109777_HDR_zpsxtgdaa42.jpg.html" target="_blank"><img src="http://i1271.photobucket.com/albums/jj631/nkrell11/IMG_20150527_134109777_HDR_zpsxtgdaa42.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p></blockquote><p></p>
[QUOTE="Jeffdachef, post: 8522867, member: 650438"] you are in luck, there's two here's his older one [URL="http:////forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html"]http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html[/URL] Here's a recent one. [URL="http:////forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html"]http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html[/URL] Its not just deadening, its an overall acoustical treatment as well. Using deadener to cover holes doesnt work anywhere near as well as MLV or sheet metal or other ridgid substances with actual heavy mass, I witness the difference live. Mainly because deadener is not a solid stiff material, its still a mound of butyl with a thin layer of aluminium. With midbass notes, it will cause it to flex and vibrate which really dramatically decreases midbass potentiial vs solid hard mass like Mass loaded vinyl, aluminium sheet metal or even wood(not a good idea in wet doors though) Also the issue of of door panel rattle as well which needs some major decoupling with closed cell foam. so when you play very strong midbass notes, you dont get any resonances, or miniscule rattles. Deadener does not help eliminate these issues, they might slightly alleviate but they will be prevalent with strong drivers on high power. Especially where the panel clips are sometimes as well The issue of the rear wave needs to be addressed as well as making a proper seal between the plastic door panel and the mounted speaker. Here's also a video as well [MEDIA=youtube]h3EXuHlBy4M[/MEDIA] Also It might be a different story if you are using competition level deadener like this to cover the holes. This vibraflex deadener stiffens up real well after application so its not just deadening but also provides flex control and extra damping. [URL="http://s1271.photobucket.com/user/nkrell11/media/IMG_20150527_134109777_HDR_zpsxtgdaa42.jpg.html"][IMG]http://i1271.photobucket.com/albums/jj631/nkrell11/IMG_20150527_134109777_HDR_zpsxtgdaa42.jpg[/IMG][/URL] [/QUOTE]
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