Everytime I record electric guitar in my studio I get a buzz noise on the guitar channel only when using headphones and Aviom. The noise is gone when the guitar player is not wearing his headphone (comming from the Aviom). Thats very strange. When the strings are touched the buzz is less and when the player is moving further from the Aviom the noise is less as well. Same problem with different guitars and players. And with bass as well. So the Guitar pickups are picking up something like and electric field made by the player itself wearing a headphone in combination with and Aviom system. I have no idea how to solve this problem.
It is a definite pickup grounding issue causing hum/"buzz" which diminishes when touching strings. Check the impedance of cable jack inputs and cable which should be 1/4"mono input/output jacks) . A personal preference but effective is to NOT run guitar direct into mixer but through an external amp w/ a headphone out jack . Noise gating/preamp filter also will help eliminate the "buzz"/noise from pickups. It is unfortunately the nature of the "electro-magnetic" beast when it comes to electric guitar pickups .Hope this helps.
I get this same noise. Are you saying that by running an external headphone amp (like maybe a small mixer) that the buzz goes away? We also don't seem to get this buzz when using wireless IEMs from the Aviom.
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SOURCE: Our aviom system does not
The probllem MAY be with the driver in the sound board. I would use one of your Aviom units right at the sound board interface and see if short direct connect works. I assume you power the A16D from the same receptacle as your sound board... IF NOT you are asking for damage due to ground bounce in your house wiring. You need a separate power run between your mixer an all other interconnected devices. The coupling from nearby lightning strikes could create enough electromagnetics to exceed the common mode capability of the devices. The drive from the interface at the sound board would be lower impedance and could easily be the most vulnerablle to transients as the protection is less since the drivers are assumed to be driving. If the power was off during the storms, then the drivers are left unprotected. Again, the way to troubleshoot this is to FIRST verify that the interface in the board is operational before blaming the distribution box.
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