:::Well at what point it causes permanent brain damage is debatable... [[User:RobS|RobS]] 00:37, 24 April 2007 (EDT)
:::Well at what point it causes permanent brain damage is debatable... [[User:RobS|RobS]] 00:37, 24 April 2007 (EDT)
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::::Who said anything about ''brain'' damage? The effect of prolonged exposure to high sound pressure levels (for varying times and SPLs) is well documented - ''on the ears''.