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Discussion in 'Amps and Cabs [BG]' started by bove027, Apr 26, 2002.

  1. Hi,

    mayby a stupid question, but anyway...

    On my amp (G&K RB700/210) I've got DirectOut> There is a "GroundLift" button... Manual says nothing abou it....

    So the question :

    What is Groundlift exactly????
  2. an XLR DI has three pins. One is a ground (earth, in UK). Under certain circumstances, this can cause buzz. I think this is when the ring mains that the mixer is plugged into in a different phase to that which you amp is plugged into. You get rid of the buzz by disconnecting the ground. Lifting the ground, as it were. Pressing that button!

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