Phil Allison wrote:
"Serge Auckland"

Sensible advice, but isn't it a pity that consumer electronics rarely
follow professional practice of having a permanent safety ground, and a
separate audio ground which can be bonded to safety ground or lifted.



** Shame how in very case where that is seen it is VERY unsafe !!

Floating the internal circuitry while grounding the external metalwork of AC
powered audio gear is a recipe for a FATAL accident.

Think it trough.

Humans touch the connectors that link to that floating circuitry.




....... Phil




Further to my post just now, by the way, the XLR shell of pro gear is
normally bonded to safety ground, NOT audio ground, so touching the
connectors puts the user in contact with safety ground only.

S.