« Reply #2 on: March 02, 2011, 03:19:14 PM »
What he said.
IIRC, this has been tested by Chris Church. They will perform up to specs with any voltage from 9V and above.
4.7K mod and three wire will improve performance though.

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Mics: A-51s LE, CK 930, Line Audo CM3, AT853Rx (hc,c,sc), ECM 121, ECM 909A
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