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In Reply to: A tough question but how loud is 'loud'? Or, what is 'low listening' level? * posted by PureAudio on February 21, 2007 at 18:48:44:
Converstaion level 60- 70 is great , its when I turn it up louder than shouting (maybe 100db) maybe more. This amp on my Fostex 166BLH is the sweetest amp I ever herd. Bass hangs in the air and its as deep as the speakers go. (They are 94db/spl/watt) and I dont loose the bass as I turn it up
Follow Ups:
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Having been in studios for 8 years, working with bands on the road and riding open pipe Harleys...its not that loud
Loudness, its complicated. I used to be a DJ and my other ahlf of our set got tinitus permanently in his left ear, which was the headphone ear. The right was listening to the club speakers.I have read quite a bit about this, and I believe damage is done by:
1. Volume
2. Period of time listening and the amount of times listening
(it can take over a week to recover from one night out in a normal club).
3. The frequency of the loudest sounds
(high frequency potentially does the most damage)
4. The quality
(by this I am referring especially to badly designed high frequncy horns)In a standard home set-up it will have to be at silly levels to do anything like the damage you would get from a live concert (Jazz and electronic music is worst for piercing sound waves) or a big club system.
Plus I guess the quality of the sound emanating from a decent hi-fi setup will be much better than a club.
At the end of the day, if you want to rock, rock, and unless you live in a detached house well away from neighbours, the police will probably call before your ear pack up.
Sustained listening at 100db will cause permanent hearing damage.
Well then don't worry just use a more powerful amp and rock on! At that loud the quality doesn't really matter all that much, does it? Only rock concerts are that loud in real life and there it is more about the spectacle than the sound quality.
Just having fun.I thought mastering studios use 85dB as a benchmark for listening level. I think that's why 85 to 90 dB seems plenty loud for me at home. Any more than 90 is OK for brief listening, and 80-85 seems good for a long day of listening.
Ever go to a concert and wish they would turn it down just a bit so you could enjoy it for a little longer?
The number that was recently published (AES Journal article...) was 82dB +/-2dB, per channel. This is for professional recording and mastering, and is said to be a measurement of many, i.e. not a prescription or recommendation.This is also "C" weighted, slow response, peak levels IIRC. Instantaneous peaks will be no more than 14dB greater with most analogue sources, maybe 20dB with the most uncompressed CDs or movies. So 102dB capability should be good enough for these pros to avoid clipping.
I have seen a recommendation to have an extra 6dB headroom above this level, for use with solid state electronics, on the grounds that the negative feedback has to work much harder within 6dB of clipping - but that should not be relevant to SET or other zero-feedback, reasonably linear, amps.
However, if you wander over to the high efficiency speakers forum you will find many who do not want a mastering studio in their home, but want a rock concert. That can require 10 or 20dB more power, i.e. 10 to 100 times as many watts. This is very difficult territory for SETs!
Thanks for posting that. I think it's helpfull to know how loud a recording was mastered because that will give you an idea of why they made certain choices for things like compression, eq, etc.It's not like we are trying to build a mastering studio ourselves. It's just one more piece of information to help us understand the big picture. Thanks for the reply!
QE
Depends what you call loud - it is relative.If you think having the potenential to permanently damage our hearing is loud, then that is loud.
If you hear / listen louder than that often, then I guess not.
Personally, that is LOUD for me. I am trying to put together a system that communicates at lowish levels - consideration for my own hearing and the wellbeing of others and such... Too many years of sitting in/on/in front of bass-horns at dance parties has probably already done the damage tho.
Regards
Raymond
Ultra-consumers: Spending money they do not have to buy things they do not need to impress people they do not like.
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