other methods of deadening

[BoomBoxStereo 10+ year member]

besides using ACTUAL deadener... anyone have suggestions?

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[terra 5,000+ posts]

Deadener.

 

[BoomBoxStereo 10+ year member]

well that was an utterly useless response

 

[neo_styles 10+ year member]

Lol trolls will be trolls. You can use egg crate material behind the speaker baffles, I've seen people use pool noodles in the bracing for their trunk lid, and there's always spectrum sludge

 

[keep_hope_alive Premium Member]

damping requires materials with viscoelastic and elastomeric properties. plain and simple.

"deadening" is a misnomer and a term thrown out there with little understanding of what it means. you need to clarify what you actually want to achieve and what you don't like about the current environment, what you are working with, etc. making something acoustically "dead" is usually describing very low reverberation times - not panel vibration.

egg crate foam is mostly useless in car audio. foam is only good for seals and vibration isolation. there isn't enough absorption in midrange and midbass frequencies to be useful anywhere in a car. open cell foam can't get wet, closed cell foam doesn't absorb much sound. if you want absorption (such as in doors) you can use fiberglass batt insulation that is in thin plastic bags (for water resistance).

you can add mass to a metal panel, or you can stiffen a metal panel. the result is a lowering of resonance frequency or an increasing in resonance frequency, respectively. either may meet your goals, it depends on the application. you want to get the resonance frequency outside the range of the speaker/woofer exciting the panel.

 

[Jayzbent 10+ year member]

I have heard if you use ceramic microspheres mixed in roofing latex works good. They say not only is it a good sound barrier but works as a thermal barrier also. I have thought about giving it a try just to see if it does work there is plenty of info just google home made lizard skin. Another thing for barrier can use this here (closed cell foam) (acoustic foam)Maybe a combination of both. There are other ways I am sure.

 

[BoomBoxStereo 10+ year member]

damping requires materials with viscoelastic and elastomeric properties. plain and simple.
"deadening" is a misnomer and a term thrown out there with little understanding of what it means. you need to clarify what you actually want to achieve and what you don't like about the current environment, what you are working with, etc. making something acoustically "dead" is usually describing very low reverberation times - not panel vibration.

egg crate foam is mostly useless in car audio. foam is only good for seals and vibration isolation. there isn't enough absorption in midrange and midbass frequencies to be useful anywhere in a car. open cell foam can't get wet, closed cell foam doesn't absorb much sound. if you want absorption (such as in doors) you can use fiberglass batt insulation that is in thin plastic bags (for water resistance).

you can add mass to a metal panel, or you can stiffen a metal panel. the result is a lowering of resonance frequency or an increasing in resonance frequency, respectively. either may meet your goals, it depends on the application. you want to get the resonance frequency outside the range of the speaker/woofer exciting the panel.

i want to boost volume and make my factory door speakers sound better than they already are.

 

[05fronty 5,000+ posts]

saw someone use roofing shingles before

 

[Roland 10+ year member]

i want to boost volume and make my factory door speakers sound better than they already are.

In that case I think you mainly want to seal your doors. Raise the pressure that your speaker produce. (isolate the one side of the speaker from the other, the front from the back) So IMO closing the doors holes with a material that does not flex or move would increase the speaker output. Just putting deadeneer is not god enough. Putting it over the holes in a way the the deadeneer is ridged is what you want.

I'm no expert but ... I am using Kno Knoise Kolossus, It is 100mil thick, and 10mil of alluminum, and it weight almost 1 lbs per sq foot! i will be doubleing it up over the holes.

 

[whitedragon551 5,000+ posts]

Deadener.

well that was an utterly useless response

His answer wasnt useless. Thats the way you do it.

 

[d77543020 10+ year member]

there's no sub substitute for doing it right the first time

 

[BoomBoxStereo 10+ year member]

His answer wasnt useless. Thats the way you do it.

it was indeed useless. he didn't answer the question that is being asked

 

[Imtjnotu 5,000+ posts]

it was indeed useless. he didn't answer the question that is being asked

there is no cheap way to do it....peel n seal wont do crap unless u layer it an inch thick....seriously just buy the right stuff the first time

 

[terra 5,000+ posts]

it was indeed useless. he didn't answer the question that is being asked

Quit being a cheap *** and do the job right the first time.

End thread.

 

[BoomBoxStereo 10+ year member]

''

Quit being a cheap *** and do the job right the first time.
End thread.

i have money to get deadener... i was just wondering if there were other methods to doing it.

Resume thread.