Sound Deadning ......At last

[Mohi]

So at last I got Sound Deadning done in my Front Doors and boot area.

Pics as follow...

I used Dynamat Xtreme Bulk Pack ..
Really I felt a lot of difference .. Bass is lot better and my Boot Rattling is alot less.

Cabin is alot quite .

I also did the side panels in the boot.

[sweefu]

Good stuff mate. Did you block off the service holes in the doors with anything? Or just dynamat?

[HCVP]

Dynamatt does not not stop rattles, it lower's the resonating fq of the panel it is applied to. The Dynamatt in the boot isn't really achieving anything.

If you didn't fill the service holes i reccomend cutting the section of dynamatt out and filing them. Even with the service holes filled and no dynamatt in place in that area, would still sound better than the alternative.

[MAG00]

Dynamatt does not not stop rattles, it lower's the resonating fq of the panel it is applied to. The Dynamatt in the boot isn't really achieving anything.

If you didn't fill the service holes i reccomend cutting the section of dynamatt out and filing them. Even with the service holes filled and no dynamatt in place in that area, would still sound better than the alternative.

While you are right, wouldn't the added mass applied to a rattling panel reduce the rattles?

[HCVP]

Reduce - possibly ( knowing what fq the panel resonates at) , stop - no. You'd have to apply a lot of mass to a panel to stop it from rattling, and no reasonable amount of Dynamat would do that.

Considering low fq's cause a panel vibrate the most especially when it's a larger panel, lowering a panels resonate fq can actually cause it to vibrate more when talking subwoofers. Hard to imagine but it is the case. The reason while dynamat works on areas like door panels is because the speakers play above the reasonant peak of the panel they are attached to.

[HCVP]

P.S i didn't mean for my original post to sound harsh. Usually i try to go into detail a bit when i'm posting or explaining something, but then often i look back and think that the post is unnesacarily long, and not everyone wants to cypher to half a page or more of crap just to get to the point

When i try to make it short and sweet i read it after and sometimes it sounds to me like i was being harsh.....but i'm not

[Pickle']

Asking a dumb question (because thats what im good at :P), what should he be filling them with?

[kcpwns]

Thin mdf and duct tape?

[sweefu]

Yep, 3 or 6mm MDF, treat it with something so that it doesn't absorb water, you can attach it to the door with a lot of duct tape, but I ran a bead of urethane too, just to make sure everything is sealed. But then again, my door treatment was probably a little more thorough than most.

[sweefu]

Asking a dumb question (because thats what im good at :P), what should he be filling them with?

Though, seeing as you have a VE, I believe the door pocket protrude into the door cavity, so it makes things a little more difficult.

[Pickle']

hmm, Sweefu flicking though your thead, looks good. From what i seen you dynamat straight onto the doors (behind the speakers) then fill the holes infront and dynamat again? is this correct, sorry for asking!

[sweefu]

Cheers mate And yeah pretty much, the inside skin of the door isn't too bad, its big and flat, with a high resonant fq. (for the sake of argument i'll say this) though it doesn't take much to deaden the panel, though I had ~90% coverage inside and 100% outside. Its very important to work the deadening in properly, anyone can just slap it over the top. Your midwoofer is mounted in the door, for a 2 way system this will determine many many things.
Expect a write up from me about door treatment in the coming weeks

[Pickle']

look forward to it mate! cheers.

[Mohi]

Good stuff mate. Did you block off the service holes in the doors with anything? Or just dynamat?

Na, i didnt but i got one layer of Dynamat inside the door frame and one at the outside where we mount the speaker ...

[Mohi]

Dynamatt does not not stop rattles, it lower's the resonating fq of the panel it is applied to. The Dynamatt in the boot isn't really achieving anything.

If you didn't fill the service holes i reccomend cutting the section of dynamatt out and filing them. Even with the service holes filled and no dynamatt in place in that area, would still sound better than the alternative.

Thats what i hace done in my boot pannel area ,only the boot top was done in full becoz i tried in small pieces and different section and wasnt successful so i did the whole thing but i wanted to cut bit of road noise that way i did the whole doors.

[Nic92]

did you put any deadener on the back plate (behind back seats) ?

[Mohi]

did you put any deadener on the back plate (behind back seats) ?

Hmmm,, No didnt came to my mind but planning to do bit under the rear parcel shelf, it does bit of rattling .....

[HCVP]

did you put any deadener on the back plate (behind back seats) ?

Don't forget the indicator stalk and demister switch

[Nic92]

yeah i was just wondering if it would make a difference by doing it on the spot i mentioned, i had wayy to much rattling on the parcel shelf and the saftey seat thingey cap kept popping off but all sorted now , also my boot is about 75% covered in deadener and i wanted to fully cover it, i just dont think it needs, which reminds me i havnt done my doors yet

[sweefu]

* Dynamat does not stop rattles! *

And what Nic92 is referring to is the rear bulkhead I think..

[Nic92]

* Dynamat does not stop rattles! *

And what Nic92 is referring to is the rear bulkhead I think..

umm im not sure what the rear bulk head is lol.

[Nic92]

also not bad place to put ur splits (tweater), did you do them youself?

[HCVP]

I love this guy's comments

[Nic92]

I love this guy's comments

im glad your getting some entertainment

[sweefu]

also not bad place to put ur splits (tweater), did you do them youself?

Sorry mate, not too sure what you're asking here?