Sound Deadener: Audio Technix or Second Skin Damplifier

[brodeisel 10+ year member]

Why just 25%

 

[whitedragon551 5,000+ posts]

Why just 25%

Science is why

Sound Deadener Showdown - Your Source for Sound Deadening Products and Information

 

[brodeisel 10+ year member]

So it just saves you money. Im still gonna sound deaden my whole rear deck doors and parts of the trunk by the exhaust.

 

[whitedragon551 5,000+ posts]

So it just saves you money. Im still gonna sound deaden my whole rear deck doors and parts of the trunk by the exhaust.

I guess if your reading comprehension is off. The purpose is because anything more wont net you better results, but at the same time your tossing money out the window. It will actually hurt results. Im sure you will also apply deadener to rigid surfaces even though they are more resistant to vibrations than a flat panel.

Controlling resonance is the absolutely critical first step in any sound deadening project, but more isn’t better and trying to use a CLD to block sound is too expensive, too labor intensive and makes it unnecessarily difficult to do future vehicle maintenance.

To control panel resonance you should use the best vibration damper you can find and only treat the 25% at the center of the panel.

 

[brodeisel 10+ year member]

So what you are saying i should not sound deadon my doors completely or my rear deck? Or just a portion of my trunk?

 

[whitedragon551 5,000+ posts]

So what you are saying i should not sound deadon my doors completely or my rear deck? Or just a portion of my trunk?

You should deaden 25% of it. If you dont want pieces to rattle against each other or you want to keep out air borne/road noise then you need a closed cell foam or an mass loaded vinyl.

 

[Drummer65 10+ year member]

I guess if your reading comprehension is off. The purpose is because anything more wont net you better results, but at the same time your tossing money out the window. It will actually hurt results. Im sure you will also apply deadener to rigid surfaces even though they are more resistant to vibrations than a flat panel.

I don't see how applying more then 25% would hurt results.

 

[Drummer65 10+ year member]

Let me know how much sound deadner you use i have the exact same car. Also can i see a picture of how you fit the 4 12s in your car.

View attachment 26526951View attachment 26526952

Old pictures I currently have 4

 

[Imtjnotu 5,000+ posts]

2 subs back 2 subs forward and 4 ports up

 

[Rudy 10+ year member]

I don't see how applying more then 25% would hurt results.

It will only hurt performance if you are going for SPL - vibration dampers convert vibration, which can become sound, into heat, which can't. Other than that, diminishing returns come in very quickly after 25-30%. If you're using more than that, you're probably trying to use the vibration damper for something else: either as a stiffener, something it's not very good at, or a barrier, something else it's not very good at. You're also adding future maintenance problems for no real return in performance. There's just no good reason to do it.

 

[Drummer65 10+ year member]

http://www.caraudio.com/forums/speakers/95925-proper-door-sound-deadening-you.html

So this guide is incorrect, sound deadener should only be applied to 25% of the door?

 

[i2ain2thunder 10+ year member]

well truth is it only saves you money and you don't need more then 25% for sound improvement, however if you're using it to chase down and secure rattles thats a different story, cover that bish in it.

 

[whitedragon551 5,000+ posts]

well truth is it only saves you money and you don't need more then 25% for sound improvement, however if you're using it to chase down and secure rattles thats a different story, cover that bish in it.

More incorrect. Thats what CCF is for.

 

[Anthony Collova 10+ year member]

It can only hurt performance if you are going for SPL - vibration dampers convert vibration, which can become sound, into heat, which can't. Other than that, diminishing returns come in very quickly after 25-30%. If you're using more than that, you're probably trying to use the vibration damper for something else: either as a stiffener, something it's not very good at, or a barrier, something else it's not very good at. You're also adding future maintenance problems for no real return in performance. There's just no good reason to do it.

Fixed

ANT