New SPL world record set, 180db!!! - DFWstangs Forums
 
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post #1 of 13 (permalink) Old 10-28-2005, 05:14 PM Thread Starter
BP
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New SPL world record set, 180db!!!

Scott Owens, Pioneer sponsored F350, set the world on fire with the highest reading ever recorded from a car audio system at 180 decibels. I probably wouldn't want to ride in it

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post #2 of 13 (permalink) Old 10-28-2005, 09:28 PM
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That's kinda loud!

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post #3 of 13 (permalink) Old 10-28-2005, 09:31 PM
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<-remembers when mid 150's was LOUD!
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post #4 of 13 (permalink) Old 10-28-2005, 09:39 PM
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that was when woofers moved this much <--------->

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post #5 of 13 (permalink) Old 10-28-2005, 09:49 PM
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I can't even imagine how that FEELS...

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post #6 of 13 (permalink) Old 10-29-2005, 09:40 AM
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nah that wont make you lose your hearing
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post #7 of 13 (permalink) Old 10-29-2005, 10:04 AM
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Weakest sound heard 0dB
Normal conversation (3-5') 60-70dB
Telephone dial tone 80dB
City Traffic (inside car) 85dB
Train whistle at 500' 90dB
Subway train at 200' 95dB
Level at which sustained exposure may result in hearing loss 90 - 95dB
Power mower 107dB
Power saw 110dB
Pain begins 125dB
Pneumatic riveter at 4' 125dB
Jet engine at 100' 140dB
Death of hearing tissue 180dB <-------------------------Take your ears out for good!
Loudest sound possible 194dB
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post #8 of 13 (permalink) Old 10-29-2005, 10:12 AM Thread Starter
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There have been cases of people suffering collapsed lungs at concerts by being too close to the speakers, well under 180db. Suffice it to say it wouldn't be comfortable

Btw: He set the record at the USACi finals a couple of weeks ago and it was on the B&K meter (same one NASA uses).

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post #9 of 13 (permalink) Old 10-29-2005, 10:12 AM
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the pain at 140 has alot to do with the frequency of the sound, 140db @ 2000hz would be hands down brutal, however, 140db 2 35hz is not, although it can still do damage.

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post #10 of 13 (permalink) Old 10-29-2005, 01:37 PM
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Why is the loudest sound possible only 194 dB?

What about that guy on Spinal Tap that has an "11" on the knob? Wouldn't that be 194.11 dB?! J/K

Seriously, tho, why only 194?

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post #11 of 13 (permalink) Old 10-29-2005, 05:57 PM
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the scale of db is exponential, every 3db is a doubling of sound, maybe that's just all the sound that can be generated.

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post #12 of 13 (permalink) Old 10-29-2005, 06:51 PM Thread Starter
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Quote:
Originally Posted by Old Fart
Why is the loudest sound possible only 194 dB?
Seriously, tho, why only 194?
It's because spl readings aren't really a specific value but a logarithm that converts micro pascals to the perceived hearing level of humans. Since it's subjective there aren't absolutes. I'd imagine anything higher than 194db would revert to the Richter scale, which once again is subjective.

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post #13 of 13 (permalink) Old 10-29-2005, 09:10 PM
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Quote:
Originally Posted by BP
It's because spl readings aren't really a specific value but a logarithm that converts micro pascals to the perceived hearing level of humans. Since it's subjective there aren't absolutes. I'd imagine anything higher than 194db would revert to the Richter scale, which once again is subjective.
Cool, thanks

Wonder when the first car audio system will be measured on the Richter scale

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