Audio boosting circuit help

Audioguru

Joined Dec 20, 2007
11,249
The circuit is wrong because it has nothing to limit the negative swing of the input signal. If the input was changed to be an inverting amplifier then a negative input swing would be allowed.
If the existing circuit used an additional negative power supply then it would work fine.

EDIT:
Audio booster? No.
It is a peak detector circuit with a DC output.
 
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