Sound Deadening - CLD and MLV

I'm looking towards replacing speakers this spring. While I have the doors apart, I'd like to address noise.

Currently, my plan is to apply CLD to the inside of the door skins (Access Cab) and the rear panel to cover 50% of the area. Specifically, considering the Noico 80 mil. Possibly some CLD on the door structure.

Now, I'm struggling with where to apply the MLV. Considering Noico 150 mil. My thoughts are to apply the MLV (100% coverage) to the inside of the door panels and over the CLD on the rear panel.

I believe the CLD will reduce vibrations from the door skin/frame and the rear panel. The MLV will absorb the higher noise frequencies.

I know that noise is effectively absorbed when the frequencies need to pass through media of varying density. Learned this while isolating wood shop noise from the rest of the house. My application of the CLD and the MLV would leave an air gap between the two.

Will the MLV on the inside of the door panel be an effective location? Will assembly be prevented?

Thoughts?

 

You should be good i applied noico 80ml also and that alone makes a nice difference.

 

I did Noico on my doors as well. Not full coverage though. I hit the large areas and behind the speakers and it made a world of difference.

 

Yep, put CLD on any potentially resonant panels. Doors are particularly important so plan to spend a lot of time there. Jury's still out on Noico, and although a lot of people here use it, I have suspicions about its heat tolerance.

MLV is your barrier layer, so as close to 100% coverage as possible. Use virgin material - the recycled stuff smells and isn't as robust.

You should also use a decoupling layer to keep things apart (ex door card). Neoprene is a great tool for this and is almost completely compressible. It also offers thermal benefits. I also have garage door seal crammed in dozens of cracks to eliminate buzzing. Absorptive panels in the doors can help and can be done on the cheap.

 

Not really sound deadening but should one use the foam speaker baffles ? What do they add sound wise ?

 

They can add a little midbass in VERY low power applications, but for the most part they're best used as a rain shield if anything. Just cut out the backs & make sure water can drain.

 

Ok......been 4 days. The original question has been shifted to speaker baffles.

All is good. Just means I need to do more research.

Thanks guys & gals......

 

Living in Phoenix and having my tC fully deadened in ~60 sq/ft of Noico for 5+ years. No issues with heat. Also threw a layer of Second Skin heatwave pro over the whole car (minus floor due to thickness) and that combo is amazing for noise blocking. Noico is good stuff.