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ground loop noise

  1. W

    Hum noise from using RCA audio switch

    I am trying to run two turntables (Dual 1237, Harman Kardon hk720) through my Hitachi HTA-5001 amplifier with a passive RCA audio switch. I've run the ground wires to the amplifier's ground post and I can hear a humming noise. I have used the same audio switch with two other turntables on a...
    • wolfiesblues
    • Thread
    • ground loop isolator ground loop noise passive audio switch
    • Replies: 4
    • Forum: Turntables
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