Yaris Sedan Deadening and Sound system upgrade

[derickveliz2]

Originally Posted by talnlnky

Derick, because of your install i'm giving the MLV a second thought. How much of a help do you really think the MLV is? I know the MLV stands for Mass loaded vinyl, does it feel heavy, like there actually is some mass to it?

In my install I basically have 2 layers of raammat on the floors, and then on the side panels & wheel wells. Then I have a layer of ensolite foam (1/8" thick). I have yet to do the front doors, and barely touched the firewall. I plan on picking up more mat for the doors & firewall, some CLD tiles for the doors (behind the speakers)... but am really considering the MLV too. I wouldn't want to drop the money, or re-gut my car to do the entire car in MLV, but I could justify doing my doors, firewall, and driver/front passenger foot area with it.

any advice. I'm all about bang for the buck, but would like a little more road noise eliminated. Would the MLV give me much of a increase in sound reduction do you think?

For a quiet ride MLV is your best friend, it's heavy (1/8" thick- 1sf = 1 pound ) [I did put it on the scale and yes it's heavy] It's a really good way to block the noise.

I did a little experiment on the left front wheel well... I put almost 3 layers of MAT and called done! I drove for 3 days like this then I put the MLV on top! WOW! the noise was gone!

I've been searching around and I see all kids of cars go with MLV to make their cars less noisy, (BMW, AUDI, other TOYOTAS and many more) MLV may not be as good as 3 or 4 layer of MATT when the GOAL is SPL, but for a quiet drive blocking external noise in the FIREWALL, DOORS and FLOORS is really GOOD

In architecture/construction we use it a lot, when using Lead is not possible to make sound barriers.

Using all 3 layers (1.-MAT or CLD Tiles = control resonances, 2.- CCF = Absorb high frequency noise and cushion rattles, 3.- MLV=Sound Barrier) makes this system work really good.

It's like using the right tool for the job

MY 2 cts. if I had to do it again, I would do it exactly the same way!

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