I was told that an isolated ground to a specific outlet will only work if that outlet is on a dedicated circuit. Other than with a dedicated circuit, you can set up a ground loop, or even worse, a voltage differential between that outlet's grounding, and the main ground. Such a condtion could result in not only increased noise, BUT A POTENTIAL VOLTAGE CONDUCTED ALONG THE GROUNDING WIRES! What sayeth you, Sean? Happy Tunes!
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