Yaris Sedan Deadening and Sound system upgrade

[Emerge]

I talked to a guy in one of my classes and he says his place does sound deadening by using dynamat. How does this compare to the methods and materials you are using?

[derickveliz2]

Originally Posted by Emerge

I talked to a guy in one of my classes and he says his place does sound deadening by using dynamat. How does this compare to the methods and materials you are using?

dynamat it's what we have been calling here "MAT" maybe a little heavier than the RaamMat but same family.

For SPL is good to cover every single surface of your car, it doesn't compare to the method I'm using to block the noise that penetrates the inside of the cabin. (remember that for SPL competitions you are been tested in NO motion)

Applying many layers of MAT it does reduce the noise levels similar to the process I'm using.

The Car Audio industry is one of the only ones that still uses "MAT" aka dyamat, as a primary material for deadening, and that is because of Marketing, but in other industries I found 3 common factors:

1. take care of resonances ... by using (Constrained Layer Damper) CLD Tiles 25% of the area is enough, covering all the surfaces with "Mat" may be use but not necessary unless you are going for SPL

2. help cushion high frequencies that still goes through metal ... Close Cell Foam also used to prevent rattles between panels

3. Sound Barrier ... MLV Mass Loaded Vinyl to block exterior noise (and it's cheaper than "lead")


My goal with this process is to reduce the outside noise as much as possible specially at highway speeds, and in some places like front doors improve acoustical environment for speakers.

I hope it helps!

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