My little cousin got his first Honda! 1990 EF! Sound system sounded great, so I took off the speaker covers to see what speakers he had and I found this. It reminds me of the stuffing thats in the teddy bear I made in sewing class in middle school.

Out of curiosity we took it out of the drivers side. With me sitting in the passenger seat I was able to hear more door rattle coming the driver's side door than my passenger side door.

Big question? Any ill effects by doing this? If not I'm doing it to my car!

 

this is interesting, never heard of this before..

 

No ill effect or damage to the speaker unless its packed between the speaker pole and the baskets causing the speaker not being able to move freely.

 

Definitely not. It looks like you just take out the cover and stuff it in there. That's how we pulled it out. The whole door is stuffed with this.

I'm still suspect as to why more people aren't doing this. A huge bag of this stuff is $3-$4 at a craft store. I initially thought that it would hold onto moisture but whenever we wash my kids stuffed animals they always dry so quick. Its the fabric that gets wet... not the stuffing. Plus if the door still has its plastic wrap it should be sealed.

 

would you be able to do post a YT video demonstrating the difference with/without the stuffing?

 

I would second that, I would love to find out. I think maybe it's the speakers the sound good. I would say 90% speakers, and 10% the stuffing. I want to do it to my Accord.

Thanks.

 

It is called spun Dacron, [used in upholstering] by itself it has no bad effects and makes a pretty good dampening material.

The problem I have seen using anything that can hold moisture, [water] is it will rust the crap out of your doors, your doors are not watertight, [that's why there are drains in the bottom of them].

With that said, I have replaced the stock plastic vapor barrier on car doors with Dynamat, [to seal the door better for better SQ out of the door speakers] and then installed a layer of "sheet" Dacron to prevent the door panel rattling against the inside door skin, however, great care was used to make sure there was no way for the Dacron to get wet. 94

 

exactly how much Dynamat would you recommend? Just the speaker kit, or should the whole inside of the door be covered?

 

It doesn't have enough mass to dampen panel vibration. The best thing that is doing is absorbing sound which could improve the sound by removing the delayed reflections and panel resonance. But I doubt it does much of either. If you want to improve sound there are a few things you can do, 1) build a proper baffle 2) use dyanamat or similar product 3) build a foam ring that sits on the mounting flange to direct sound out through the grill.

 

As much as you need to seal the door, [replace stock vapour barrier] a single sheet that will cover all the holes in the door, cut out the section that the speaker is mounted to and stick it to the inside of the doors outside skin, directly behind the speaker, and if you really want the best possible sound from the speaker, replace the stock plastic speaker housings with custom MDF speaker plates, [baffles]. 94