Heil PRb781 - Mic Bias?

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  • Updated 9 months ago
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Heil PR 781 mic plugged into Flex 6600M balanced input (1/4 inch) connector.  Mic bias on or off? Thanks.
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Neil D Friedman N3DF

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Posted 9 months ago

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Bill N3HQB

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Off.
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WW1SS - Steve

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You only need the bias if it is an Electret mic
The PR781 employs a Heil PR dynamic mic element . . . You do not need bias on
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Ken - NM9P, Elmer

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Steve is correct.
In fact, If you are using the 1/4-inch balanced connector, the Mic bias makes no difference, because no bias is applied to the 6600's 1/4-inch balanced connector, only to the 1/8-inch "pseudo-balanced" connector.

Ken - NM9P