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Thread: Ground Loops 101

  1. #21
    Member Sponsor Addicted to Best!
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    Feb 2012
    Fortunately, I believe ground loops are fairly rare these days.
    What is a much more common issue are leakage currents.
    These arise from the ubiquitous use of SMPS in the form of power bricks, wallwarts & internal PSes in computers & other devices often found in the playback chain
    These leakage currents similarly find their way into & cause noise issues in signal ground.

    But again, the best solution is to ground the the non-positive output from the SMPSes.

    PS. I note that the AP grounding recommendation diagram above is the very same one I recommended here for Amir's benefit - obviously it depends on who is the messenger, as my suggestion was rejected as idiotic by some of the same people who praise it above
    Manufacturer digital products
    "The greatest obstacle to discovery is not ignorance – it is the illusion of knowledge." - Daniel J. Boorstin.

  2. #22
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    Oct 2017
    Great Pacific Northwest
    Quote Originally Posted by jkeny View Post
    Fortunately, I believe ground loops are fairly rare these days.
    I suspect that many "RF" noise complaints are due to ground loops.

    Steve N.
    Empirical Audio

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