Olin Lathrop wrote:
> Microphones typically need a voltage gain over 1000.  You aren't going to
> get that in one stage with reasonable opamp, and certainly not with a 741 at
> voice frequencies.  I think multiple stages is the right way to go.

From
http://www.analog.com/UploadedFiles/Data_Sheets/35641221898805SSM2167_b.pdf
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SSM2167 Low Voltage Microphone Preamplifier

PC Board Layout Considerations
Since the SSM2167 is capable of wide bandwidth operation and can be
configured for as much as 60 dB of gain

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Related doc:
AN-583 APPLICATION NOTE
Using the SSM2167 Evaluation Board

Regards
MS
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