Education and Communications What does a ground lifter do? Whats a ground lift switch? Ground lift is a switch found on many pieces of audio equipment which disconnects audio signal ground from earth or chassis ground.13 ene 1998 Related Posts:How do I wire a 3 way switch with red and black?How is earth science studies?Does audio interface really make a difference?The lawn mower won't move, you have to put the model 2 347 dixie chopper in neutral.