Humming/Hissing Noise from Xone:23 Mixer

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    Profile photo of Djisang

    Hey guys,

    I’ve been having a problem with my xone:23 emitting a hissing/humming noise. It comes out of speakers when connected to both the booth (RCA) and master (XLR), both headphone ports, and even in the audio I record.

    This is what I’ve tested, and I’m inclined to believe it’s a problem with the xone:23 itself:

    1. Tried different power sockets in multiple rooms and spaces (studio, home, friend’s place, etc).
    2. Tried a different mixer, which didn’t have the same issue
    3. Tested it with no inputs connected. Problem is still there, but does get worse when I plug in my turntables/Audio Interface.
    4. Used a multimeter to confirm that the power adapter is delivering the correct voltage. (Haven’t tested with a separate power supply yet though)

    I’ve attached two recordings of the noise; one with nothing connected, and one with my audio interface connected.

    I’m hoping I can figure this out on my own, even if it requires taking my mixer apart. Any insight or advice would be appreciated!

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