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Old 19th Mar 2019, 2:29 pm   #487
Craig Sawyers
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Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,942
Default Re: Audiophoolery?

The thing that all this ground nonsense entirely forgets that neither airplanes or space vehicles have any connection to ground. And generally planes do not fall out of the sky and space vehicles work - such as GPS satellites.

Like many snake oil merchants forget is that there is a difference between a signal's zero voltage reference (against which signal voltages are compared) and safety ground.

Look upon the equipment as being a Faraday cage (IOW the equipment enclosure) in which the circuit is located. The zero voltage reference is connected to the Faraday cage. Then for ground based audio you connect the Faraday cage to safety ground for - er - safety. What the safety ground is doing in detail is entirely irrelevant.

The only time that safety ground can be problematic is when a hum loop is a problem - but that is 99% of the time is a result of plugging different pieces of gear into different wall outlets.

Craig
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