Author Topic: Electric horns no no  (Read 1922 times)

Offline pault

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Electric horns no no
« on: February 23, 2021, 03:42:48 PM »
looking at after market horns. On fleabay alone there are lots. A good brand like hella put out 115db? Then there  others? Claiming 350db plus??    Surely this would be BS?? Or am I one of little faith.
 

Offline ruSTynutz

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Re: Electric horns no no
« Reply #1 on: February 23, 2021, 03:56:39 PM »
Definitely BS...  :thumbs

Worth a look: https://www.noisehelp.com/noise-dose.html


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Re: Electric horns no no
« Reply #2 on: February 23, 2021, 03:57:53 PM »
350db will be hard to achieve, unless you put your head inside the combustion chamber of your bike.    :grin
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Offline Biggles

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Re: Electric horns no no
« Reply #3 on: February 23, 2021, 04:22:16 PM »
Definitely BS...  :thumbs

Worth a look: https://www.noisehelp.com/noise-dose.html

That clearly shows why my hearing is stuffed.  I flew light aircraft at about 100 dBA (more in take-off and climb) with minimal ear protection for an average of 8 hours a day for months on end.
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Offline CallMeSteve

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Re: Electric horns no no
« Reply #4 on: February 23, 2021, 04:37:58 PM »
looking at after market horns. On fleabay alone there are lots. A good brand like hella put out 115db? Then there  others? Claiming 350db plus??    Surely this would be BS?? Or am I one of little faith.

They must be using a very strange measurement, but whatever they are doing it's just specsmanship aimed at the unknowing.  Rusty's linked page is right.

Those of us with memories intact will recall how the manufacturers of consumer-grade sound systems gradually migrated from specifying amplifier power in RMS to PMPO (peak music power output), simply because 200W PMPO reads a heck of a lot better than 10W RMS.   But even having said that, I have no idea what these sites are doing to come up with a figure of 350dB
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Offline Brock

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Re: Electric horns no no
« Reply #6 on: February 23, 2021, 05:15:58 PM »
350 db seasonally adjusted.
 

Offline LindsayGT

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Online Wild Rose

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Re: Electric horns no no
« Reply #8 on: February 23, 2021, 06:06:19 PM »
Definitely BS...  :thumbs

Worth a look: https://www.noisehelp.com/noise-dose.html

That clearly shows why my hearing is stuffed.  I flew light aircraft at about 100 dBA (more in take-off and climb) with minimal ear protection for an average of 8 hours a day for months on end.
44 years on the railway didn't help my hearing
What did you say again   :fp  :grin
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Offline pault

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Re: Electric horns no no
« Reply #9 on: February 23, 2021, 06:25:20 PM »
I wore out a stebel, from my defunct memory, the compressor used an eccentric rotating in a bore with sliding seals which moved in and out to compress the sir into port in the side of the bore. Compact design low amps.
 

Offline Gadget

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Re: Electric horns no no
« Reply #10 on: February 23, 2021, 07:41:14 PM »
dB is the abbreviation for decibel which is a logarithmic scale.

Every 10 dB is 10 times louder than the next. e.g. 20 dBA is 10 times louder than 10 dBA. 30 dBA is 100 times louder than 10 dBA, etc

Every 10 dB above 100 dBA would be 10 times louder, so 350 dBA would be  10,000,000,000,000,000,000,000 louder than 100 dBA.

I think they might be BSing just a bit. 

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Offline Biggles

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Re: Electric horns no no
« Reply #11 on: February 25, 2021, 11:18:55 AM »
Every 10 dB above 100 dBA would be 10 times louder, so 350 dBA would be  10,000,000,000,000,000,000,000 louder than 100 dBA.

I think they might be BSing just a bit. 

Numbers schnumbas.  We're used to "trillions" these days so 10 billion trillions is easy to imagine! 
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Offline STroppy

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Re: Electric horns no no
« Reply #12 on: March 01, 2021, 04:18:12 PM »
Terry, Canberra 0412499625
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