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Yeah, what Bill said.

Is the outlet really grounded?

The tester Bill mentioned has three indicator lamps that when lit in certain combinations will tell you about outlet you're plugging into.
But, even if there is a ground wire running from the outlet to the distro box and the indicator shows a ground, it doesn't mean that the ground is at zero potential.

Try these two things:

1-test the mic on the singer with phantom both on and off. If no difference, then try a different mic and cable. If this doesn't work, then:

2-ground strap the Furman (run a wire from it's metal case) to a metal pipe that comes out of the ground, a steel beam in a steel frame building, rebar sticking up out of concrete, or any suitable earthing connection you can find. If this eliminates the problem, the building you're in has an electrical grounding issue. Play there at your own risk.
Note: Beware when connecting the strap. If you see any sparking, pack up your gear and split. Also, if strapping does eliminate the problem, don't be tempted to leave it in place. The building's electrical system would be earthed through your gear, and I doubt that you want your gear to get damaged or destroyed.


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  • Yeah, what Bill said. - Top Jimmy 22:11:20 09/02/03 (0)


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