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2020 Mac Mini (Intel) - Ground Loop Troubleshooting


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22 hours ago, JoshM said:

I have the same Mac as you, but whenever I’ve run into this issue, it’s been the DAC that I’ve needed to move to break the loop. Does a “cheater” plug on the DAC’s cord end the loop? If so, an Ebtech Hum-X should safely solve the problem in place of the cheater. 
 

Also, moving one or both of the components to a pure sine wave UPS might solve the issue. 

 

@JoshM If I'm using a Sbooster 12V power supply would this still apply?

Sbooster_clean_cutout_2048x2048.thumb.jpeg.028fc067b55bf47cd5b4f75e02bfcdaa.jpeg

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A good basic description of the sources and problems of grounding and ground loops.
Including safety and what to do and not do.
Still, it can be difficult to solve.

Understanding Grounding in Audio by ASR

 

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MacBook Pro M1 Pro -> Motu 8D -> AES/EBU ->
Main: Genelec 5 x 8260A + 2 x 8250 + 2 x 8330 + 7271A sub
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