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isolated

  1. Hum from new isolated sub

    Home Audio Subwoofers
    I'm a sub newby and just bought a new Sunfire True EQ. It has an audible hum even when in standby and not connected to any other equipment. I've tried it in various sockets around the house, with different power cords, and even through a power filter. None of it's controls alter the hum and it's...
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