In which position is the Ground Lift turned on? When the switch is on the side of the word 'Ground' or on the side of the word 'Lift'?
And the other question, is it possible to turn the HPF off completely? Or it has to be at least set at 40Hz?
And the other question, is it possible to turn the HPF off completely? Or it has to be at least set at 40Hz?
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