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The upstream transport might complete the ground loop.

The DAC by itself would break the ground loop as long as the DAC's power supply output is isolated from the AC safety-earth. However, if the audio zero reference (DAC output) is continuous with the digital zero reference (DAC input), then the AC safety-earth connection in the transport would complete the ground loop. I don't know: I wouldn't mix digital and audio zero references, but I don't have experience with DAC design.


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  • The upstream transport might complete the ground loop. - Al Sekela 11:59:30 07/04/07 (0)

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