Comment on Should speakers hum when they're connected to a stereo, but the volume of is turned all the way down?

Shadow@lemmy.ca ⁨3⁩ ⁨days⁩ ago

• sem@piefed.blahaj.zone ⁨3⁩ ⁨days⁩ ago

  I learned a little bit about ground loop and it seems like this mainly happens when you are plugged into power using two different sources? How is there a ground loop when the speaker is connected to the stereo and the stereo is the only thing plugged into power.

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  • Geometrinen_Gepardi@sopuli.xyz ⁨3⁩ ⁨days⁩ ago

    Disconnect all copper input cables from your amp. If the hum stops, it was a ground loop.

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    • sem@piefed.blahaj.zone ⁨3⁩ ⁨days⁩ ago

      There are already no input wires (it is using Bluetooth) so I guess it is not a ground loop.

      Thank you for the education! I’m assuming that the inputs, if they are grounded, can lead to the ground loop?

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