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norge squeak sound

  1. R

    Strange sound while turning off equipment

    Hi, I have a Norge Concerto Gold 1000 amplifier & Wharfedale Diamond 9.5s. I notice a strange squeak/short suction-like sound from the speakers when turning off the amplifier. I get the same sound whether I turn off the power switch on the amp, or turn off the switch on the wall outlet. Even...