Airborne Posted October 10, 2013 Report Share Posted October 10, 2013 I gave away a roll of fatmat to a member here. Mostly because he didn't have the funds for some deadener and I was more than happy to help. Bad idea going cheap unless it's free (like what I gave dude). It falls off doors onto widows, gums up regulators and causes herpes... Link to comment Share on other sites More sharing options...
Airborne Posted October 10, 2013 Report Share Posted October 10, 2013 the hell is going on with my double posts?lol Link to comment Share on other sites More sharing options...
Bassgenerator Posted October 10, 2013 Report Share Posted October 10, 2013 Good article by the way. Especially for those trying to go the cheap way out. You get what you pay for. Link to comment Share on other sites More sharing options...
Krakin Posted October 10, 2013 Report Share Posted October 10, 2013 It won't effect the sound. Exactly.. I have 120 mm in my roof Creating a barrier on the roof -let alone out of vibration damping material- has very little point to it, unless you have sound coming directly from above you car. This is because the window line is the weak link behind that. To build a barrier you will need another material such as mass loaded vinyl (MLV) and lead sheeting. As these two object have very high mass and a resonant frequency well below the audible spectrum. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
Bassgenerator Posted October 10, 2013 Report Share Posted October 10, 2013 I don't have windows and I also added quarter inch closed cell foam to it. I have a Ford Transit Connect. It is poorly insulated and has extremely loud road noise. After installing I noticed a huge difference in noise as well as climate changes. Now do you get it? Link to comment Share on other sites More sharing options...
Krakin Posted October 10, 2013 Report Share Posted October 10, 2013 For building a barrier it is best to think of it as building two thirds of a bubble. You want mass loaded vinyl covering all of that two thirds. Before you do that you need to put about a one eight layer of closed cell foam between to decouple the vinyl from the vehicle. Make sure you use vinyl contact cement to secure MLV to the CCF, or vinyl specified Velco strips (not the same Velcro strips you buy at Lowes) Somewhat ninja'd Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
Bassgenerator Posted October 10, 2013 Report Share Posted October 10, 2013 Yes. I used a spray on 3M product especially designed for car headliners. I monitored for about 4 hours before I reinstalled my line to make sure there were no air pockets. You know your stuff. Link to comment Share on other sites More sharing options...
egnolac26 Posted October 10, 2013 Report Share Posted October 10, 2013 Check out Evercoat Q Pads make sure you have a heat gun. Link to comment Share on other sites More sharing options...
Krakin Posted October 10, 2013 Report Share Posted October 10, 2013 Check out Evercoat Q Pads make sure you have a heat gun. I have never known that fiberglass was a good acoustical dampening material. I assume that is what it is as it never directly states it's composition, and every other product that company offers is fiberglass. Krakin's Home Dipole Project http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370 Krakin, are you some sort of mad scientist? I would have replied earlier, but I was measuring the output of my amp with a yardstick . . . What you hear is not the air pressure variation in itself but what has drawn your attention in the two streams of superimposed air pressure variations at your eardrums An acoustic event has dimensions of Time, Tone, Loudness and Space Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears, thus no formula can achieve a definite effect for every listener. Link to comment Share on other sites More sharing options...
g2shuck Posted October 10, 2013 Report Share Posted October 10, 2013 I love murdermat myself 2000 Toyota Camry With Sealed Off Trunk Sky High OFC Wiring DC Power 270 XP Alt AQ 2200 Sub Amp Two DC Level 4 m2 12s 80 Mil Murdetmat Gathering Parts For Wall Build. Team DC Audio 2014 Member Link to comment Share on other sites More sharing options...
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