I finally got a second channel given to me so I can connect in stereo to FOH but I am experiencing an odd hum.
First it is important to say it only is occurring while the keeper is off. As soon as it gets power, even during load up, it is totally quiet. The hum sounds like ground loop but it pulses between left and right sides in FOH. I tried the lift in the back but nothing different either way.
Odd hum situation between keeper and foh
- MountAnDewMe
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If it happens just with one FOH system, it could be a bad cable (do you use your own cable?), a bad channel in the snake? If just at rehearsal?
If this just in one venue, or all venues? With house PA? If it happens with many PA systems, it is a problem I don't have with mine. I suppose you could always turn the KPA on before connecting it to FOH.
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I will have the opportunity to try another FOH tonight. If I get there early I can get the director to let me use a stereo pair to test it. Otherwise I'll go with what you said about just powering up before connecting. Thanks for the advice, I went right past the simple solution worrying about loosing that second input.