I used these mics as part of a project to turn on a line-in only recorder to capture sound from a mic. If I power the mics directly from a large lithium ion battery and use a voltage converter to power the recorder, then supply decoupling capacitors with the mics factory configured for gain and attack and I get a perfect line -Output back to my recorder. Compensating for one's own level does not cope. The recorder is stereo so I used two microphones.
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