In Reply to: RE: That's a start posted by mark.korda@myfairpoint.net on January 31, 2017 at 11:00:48:
The situation you describe is primarily the result of asymmetric mains leakage to the chassis due to PT construction idiosyncrasies and/or the presence of a "death cap(s)". Personal experience indicates that there is indeed benefit to orienting the mains plug for minimum AC voltage betw chassis and electrical system ground while powered up AND coordinating the orientation of equipment to be interconnected such that all equipment is at lowest potential to ground while in isolation (before interconnects are added).
With everything properly oriented, I hear (and can measure) reduced noise and hum and not necessarily better sound as might be described as "higher highs", "blacker blacks", improved "PRAT" etc.
Obviously, it's usually bad form to defeat the grounding feature of 3 prong plugs by improperly using "cheaters".
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Follow Ups
- RE: That's a start - Steve O 12:47:39 01/31/17 (0)