$5000 sound deadener challenge

[Immacomputer 10+ year member]

If your trunk is rattling and carrying on in an "infinite baffle" setup, then it's not really a true IB setup now is it?

 

[DidUHearThat? 10+ year member]

If your trunk is rattling and carrying on in an "infinite baffle" setup, then it's not really a true IB setup now is it?

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif Sure it could. Resonace is resonace, infront or behind the driver is irrelevent.

Edit to add: I believe his baffle is the wall to the rear seat, not the trunk to the outside, which you may be thinking.

 

[Immacomputer 10+ year member]

Excessive rattling and flexing means there is a significant pressure built up in the trunk and the mass of the trunk lid is loading the subs. If the subs are loaded, they're not really running IB any more! Just to be technical.. haha

 

[DidUHearThat? 10+ year member]

Excessive rattling and flexing means there is a significant pressure built up in the trunk and the mass of the trunk lid is loading the subs. If the subs are loaded, they're not really running IB any more! Just to be technical.. haha

Just to be technical, that's complete jibberish.

 

[DDeitz 10+ year member]

humm...price of enough tweeters to hit 140 db what...250? price of amps to power tweeters and wiring lets say 400 ...price of wood...50...well thats alot of extra cash

 

[DidUHearThat? 10+ year member]

humm...price of enough tweeters to hit 140 db what...250? price of amps to power tweeters and wiring lets say 400 ...price of wood...50...well thats alot of extra cash

LOL! He didn't say what freq to hit 140 db. A pair of Klaxon fire alarm sirens are about $50 each, with built in amps, and should do well over 140 db.

 

[DDeitz 10+ year member]

LOL! He didn't say what freq to hit 140 db. A pair of Klaxon fire alarm sirens are about $50 each, with built in amps, and should do well over 140 db.

dang i could do this for like under 100 bucks? dang and here i thought spending 500 was a good deal.

 

[stylez777 10+ year member]

I think in the car industry the term "Sound Deadening/Sound Deadener" is mis-interpeted by most new-comers/installers. I myself am a newbie yet have some common sense and am able to distinguish what different products are ment to do. Most people don't take the time to fully research a product or to understand it's purpose. For example: a Guy goes and buys 120' of Damplifier installs it then turns around to say "this stuff sucks, i still get noise in my car!!" Well it's not suppose to stop noise, it's suppose to disperse the rattles of metal if properly installed. Ah but isn't a rattle noise? Yes so root problem what nosie are you trying to eliminate? Noise is general term. Music from speakers can be considered noise. So i install some deadener and now I can't hear my music? See little common sense needs to be used. Off course Deadener isn't going to elminate the music, we all know this.

So the term Sound Deadener is a general term that is miss-interpeted. Too many people jump on the boards read a post and think a product works cause someone else used it, only to find it wasn't the right product for their specific need then in turn bash it cause it didn't work for them (or jump on the bandwago with having know prior knowledge themselves). As far as rattles (getting little technical here) Your bass hits and you hear a rattle, obviously it's some thin piece of sheet metal somewhere in the car making this vibrating sound. The thinner the metal the more it's going to vibrate (tunning forks from high school??) So add 1,3,5,10 layers of Damplifier to this piece of metal and now the rattle has all but seem to disappeared. why? cause we changed the mass of the object and it cannot vibrate as easily as it did before. Does it still vibrate? yes it does, but at such a low rate it's un-audible to your ear you don't hear it. So by this simple explination by a newbie with some common real world sense you see Sound Deadening material does surpress vibrations/rattles in car metal or any metal!

Now a Sound Barrier will surpress sound of up to X freq from traveling through it. Totaly different product that tackles a totally different problem. a Sound Barrier will do nothing for metal rattles or vibration. It may elminate some sound freq from outside your car from coming in but it won't stop everything but it surpresses it enough for it to be a noticeable difference. Again common sense, nothing can ever be totally eliminated just surpressed. Also your car type has alot to do with noise and vibration. I own a Pontiac Sunfire. It's a cheaply built, economy american car. The metal is thin, and not fastened well. My car will rattle a HELL of alot more then a luxury class BMW AUDI or MERCEDES that uses better engineering in the car design then my crap little economy car (no matter how much dampener i use!). A final analogy for sound deadening products and what to use for what your problem is would be : If you were trying to unscrew a screw from a piece of wood, would you use a wrench to get it out? (meaning use the right tool for the job and your purpose will be served)

I know this is common knowledge for 95% of you out there but for the new guys or people who don;t know any better take it from another new guy, just use a bit of common sense when buying something, and read the manufacter website they list ALL this info right there what it's used for and what it isn't used for!

 

[FoxPro5 5,000+ posts]

Totaly different product that tackles a totally different problem. a Sound Barrier will do nothing for metal rattles or vibration.

Properly installed, meaning the barrier is adhered to the resonant surface, it's FAR more of a mass loading material than CLD mat. Plus you also get the transmission loss. That, my friends, is value for your dollar. This "mass loading" with foil backed butly rubber is not necessarily false; it's just limited thinking IMHO. If you want to load up something, use some mass already. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

What we're really doing with VE mat is changing energy. We're converting mechanical movement to heat. This takes viscoelasticty, not mass. Although, mass does help. Question is, do you REALLY want to load your car down??? Save the mass for where it works for you best - in blocking noise.

The rest of what you say I generally agree with. Well put. I do think your 95% figure is way too high, but everyone has something to learn, i guess.

 

[stylez777 10+ year member]

Properly installed, meaning the barrier is adhered to the resonant surface, it's FAR more of a mass loading material than CLD mat. Plus you also get the transmission loss. That, my friends, is value for your dollar. This "mass loading" with foil backed butly rubber is not necessarily false; it's just limited thinking IMHO. If you want to load up something, use some mass already. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
What we're really doing with VE mat is changing energy. We're converting mechanical movement to heat. This takes viscoelasticty, not mass. Although, mass does help. Question is, do you REALLY want to load your car down??? Save the mass for where it works for you best - in blocking noise.

The rest of what you say I generally agree with. Well put. I do think your 95% figure is way too high, but everyone has something to learn, i guess.

Fox I do agree with you on the Sound Barrier. I didn't wanna go really deep into my post all in one shot (makes for boring read) but I fully believe in the conjoining(is that a word?) of products to reach a goal. 10 layers of deadner is not going to do the job, you might better reach a goal using 1 layer of deadner, some closed cell foam and a layer of Sound Barrier...it all depends on what the end goal would be.

Ultimately it comes down to expectation of results. Most people when doing this have an unrealistic goal in mind or are not aware of what they want a final product to be (IE: the guy who wants every since ounce of noise blocked out of using tissue paper in his car). Heck I deadend my doors for the first time ever today (watched many of friends do it in the past), i had a realistic goal in mind when i set out to do it and what happen was my goal was far surpassed and i am very happy with the result. Are my doors heavier? ya, do the still Rattle? of course! but not nearly as much as before. I'm even debating if i wanna add a sound barrier in the doors and if it would be worth the cost/bennifit for me.

I'm glad you agree with some of my post. I may not have tons of experience with these products but I do feel if more common sense was used, we would get idiots offer out 5k challenges just to make himself look like a big-shot on the internet and naive people would take up his side and bash a product. I'd like to offer that guy a 5k challenge in return: If he can dodge the 16 bullets I fire at him from my Glock 9 i'll give him $5,000 then go back to the store I bought the gun from and tell them it's a piece of crap and doesn't work.

 

[FoxPro5 5,000+ posts]

Ultimately it comes down to expectation of results. Most people when doing this have an unrealistic goal in mind or are not aware of what they want a final product to be (IE: the guy who wants every since ounce of noise blocked out of using tissue paper in his car).

Someone get this man a cookie........and a glass of milk. Chirst, I think I found my twin....or my future husband....//content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Now if only people understood how you can get more damping with less weight. CLD mat has a stronghold on the industry, that's fo sho. My fav is when they call it Dynomat....like they are trying to get greater HP performance with less vibration or something. lol.....

 

[J31Rob 5,000+ posts]

what kind of metering methods are those? //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[donpisto 5,000+ posts]

Ultimately it comes down to expectation of results. Most people when doing this have an unrealistic goal in mind or are not aware of what they want a final product to be (IE: the guy who wants every since ounce of noise blocked out of using tissue paper in his car).

Expectations can also lead to mind trickery. Sometimes we think so great of something, speaking in general, that we continue to think it's good, even though it may not be. And with others stating their experience was good, if one person says theirs wasn't then they feel they will be looked down on.

In terms of sound deadening, I never have high expectations of what it will do, that way I won't be disappointed and if it does a great job, I will be very pleased. The one layer of Damp Pro on my trunk lid really surprised me. So did the deadening on my wheel wells in my previous car. A good example is that I had done my hood, I assumed that using deadener it would reduce engine noise. Honestly, I couldn't tell much of a difference, if any. But using a hose and spraying it on the hood you can make a difference...so the application and the intent make a difference as well.

I disagree with that Peter guy that sound deadener does not work. It does and he can't tell me it doesn't when it has for me on numerous occasions. Just because he has another method of doing it, does not mean that his way is the only way and the best way.

 

[delvryboy 5,000+ posts]

I hope this douche understands he can be sued in court for making that claim.

uh, no.....

 

[delvryboy 5,000+ posts]

Defamation
In law, defamation (also called calumny, libel, slander, and vilification) is the communication of a statement that makes a false claim, expressly stated or implied to be factual, that may give an individual, business, product, group, government or nation a negative image. Slander refers to a malicious, false, and defamatory statement or report, while libel refers to any other form of communication such as written words or images. Most jurisdictions allow legal actions, civil and/or criminal, to deter various kinds of defamation and retaliate against groundless criticism.

Slander Per Se

The four (4) categories of slander per se are (i) accusing someone of a crime; (ii) alleging that someone has a foul or loathsome disease; (iii) adversely reflecting on a person’s fitness to conduct her business or trade; and (iv) imputing serious ****** misconduct (especially the chastity of a woman). Once again, all you would have to prove is that someone had published the statement to a third party. No proof of special damages is required.

http://en.wikipedia.org/wiki/Slander_and_libel

All states except Arizona, Arkansas, Mississippi, Missouri, and Tennessee recognize that some categories of statements are considered to be defamatory per se, such that people making a defamation claim for these statements do not need to prove that the statement was defamatory. In the common law tradition, damages for such statements are presumed and do not have to be proven. Traditionally, these per se defamatory statements include:

Allegations or imputations "injurious to another in their trade, business, or profession"

Allegations or imputations "of loathsome disease" (historically leprosy and sexually transmitted disease, now also including mental illness)

Allegations or imputations of "unchastity" (usually only in unmarried people and sometimes only in women)

Allegations or imputations of criminal activity (sometimes only crimes of moral turpitude)[5]

http://en.wikipedia.org/wiki/United_States_defamation_law

and......

this has already has gone through the courts when it comes to the internet. No case; end of story.

Tell me your real name and I'll make a web site calling you a child molester. You can try and sue me and then my point will be proven. //content.invisioncic.com/y282845/emoticons/redface.gif.62fdbfe1a101588a808c4cff71bcb942.gif