Dynamat anyone?

[Angelo1]

When it comes to reducing unwanted sound in a vehicle you have 2 types of sound you have to deal with. Vibration, and sound waves.

Vibration:
1. Dynamat dampens panel vibration by bonding a layer of butyl rubber to the panel that is vibrating. You only need ~50% coverage to dampen most panel vibration.
2. The foil backed butyl products (Dynamat Extreme, etc) use a foil and thicker butyl rubber to reduce temperatures that pass through the panel. Coverage is equal to the area you are protecting from heat.
3. Lead sheets do the same thing as Dynamat but with more weight. It adds mass to the panel that is vibrating thereby increasing the amount of energy required to vibrate that panel.

Waves:
1. To reduce sound that isn't vibrating the panel you need an insulation that will absorb soundwaves. Butyl rubber products are a poor performer of this function.

Traditionally in homes you would use fiberglass insulation, or rockwool, closed cell foam, traps, etc.​

Automotive environments are VERY different from the home environment. They both have different weather resistance, space and weight requirements.​

Mass Loaded Vinyl (MLV) is one of the best products to do this in the automotive environment. It's a sealed foam that doesn't absorb water. You have to use 100% coverage for it to block the maximum amount of sound waves. But joints that don't have a good overlap or seal will allow sound to bypass all your hard work. Remember A 1 dB change in a sound equates to about a 26% difference in sound energy and a 3db change in sound is equivalent to doubling sound energy.​

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Good luck and keep us updated with your results!

Great information! Another concern of mine using a Dynamat or other product in door panels is water penetration between the mat and metal. I’d like to see what the LX570 has in the door panels and how they installed it. I priced out front acoustic windows for about $1030 for the set, not including motors and actuators that might be necessary to support the heavier windows. Definitely not worth the cost.

As I continue to drive my 200 more and not the sound vault X7, the less I notice the noise. I was getting used to driving something that was whisper quiet. As far as ice cold door panels, I am going to install a remote start.

 

[LegendaryKing]

Great information! Another concern of mine using a Dynamat or other product in door panels is water penetration between the mat and metal. I’d like to see what the LX570 has in the door panels and how they installed it. I priced out front acoustic windows for about $1030 for the set, not including motors and actuators that might be necessary to support the heavier windows. Definitely not worth the cost.

As I continue to drive my 200 more and not the sound vault X7, the less I notice the noise. I was getting used to driving something that was whisper quiet. As far as ice cold door panels, I am going to install a remote start.

Prepping the surface and installing it correctly is KEY! You have to clean the surface thoroughly and you have to use a lot of pressure and a roller to install. If you don't do those things it will peel right off. There are plenty of how to's on the web showing the process.

 

[NoClue]

I used kilmat on my entire interior with the exception of the roof. Made my audio sound so much better, and really cut down the road noise from my aggressive tires.

 

[Angelo1]

I used kilmat on my entire interior with the exception of the roof. Made my audio sound so much better, and really cut down the road noise from my aggressive tires.

That must have been some project. Did you do this yourself or a shop? The door panels are the easiest but Imagine the floor is much tricker to get it all put back correctly

 

[NoClue]

That must have been some project. Did you do this yourself or a shop? The door panels are the easiest but Imagine the floor is much tricker to get it all put back correctly

DIY. Interior wasn't too bad, but the front seats on a 200 are crazy heavy!

 

[04UZJ100]

Great information! Another concern of mine using a Dynamat or other product in door panels is water penetration between the mat and metal. I’d like to see what the LX570 has in the door panels and how they installed it. I priced out front acoustic windows for about $1030 for the set, not including motors and actuators that might be necessary to support the heavier windows. Definitely not worth the cost.

As I continue to drive my 200 more and not the sound vault X7, the less I notice the noise. I was getting used to driving something that was whisper quiet. As far as ice cold door panels, I am going to install a remote start.

I noticed the same thing about the feeling of the Cruiser Door Closure.

The LX doors feel more substantial and close without the tinny effect of the Land Cruiser’s. Even my 07 4Runner and 04 Land Cruiser doors don’t feel as hollow as the 2020’s.

Furthermore, you can hear the difference the front double pane windows make if you recline back enough while driving and pass your ear between the B pillar and front/rear door glass.

Lastly, the LX does have acoustic stripping between the front and rear doors that can be installed on the Cruiser. How much sound insulation it provides I’m skeptical about but it does keep the door jams cleaner.

 

[Angelo1]

DIY. Interior wasn't too bad, but the front seats on a 200 are crazy heavy!

Maybe I’ll start with the doors and then see

I noticed the same thing about the feeling of the Cruiser Door Closure.

The LX doors feel more substantial and close without the tinny effect of the Land Cruiser’s. Even my 07 4Runner and 04 Land Cruiser doors don’t feel as hollow as the 2020’s.

Furthermore, you can hear the difference the front double pane windows make if you recline back enough while driving and pass your ear between the B pillar and front/rear door glass.

Lastly, the LX does have acoustic stripping between the front and rear doors that can be installed on the Cruiser. How much sound insulation it provides I’m skeptical about but it does keep the door jams cleaner.

I wasn’t aware of the stripping between the front and rear doors. May have to look into that. Thanks