Measuring approx half mains voltage on class 2 mains equipment "0v" is not uncommon. It's generally due to mains filter caps forming a capacitive divider between live and neutral. The caps should be relatively small and mains rated, so should meet safety standards and is unlikely to provide a dangerous current, but you can sometimes feel it, and on connection or disconnection to properly grounded equipment a cap may discharge through other equipment. So, probably legally safe, but still cr4p.
Steve
On Sun, 1 Feb 2026 at 01:59, Adam (synthDIY) <synthdiy@adambaby.com> wrote:
________________________________________________________On 1 Feb 2026, at 10:40, Richie Burnett <rburnett@richieburnett.co.uk> wrote:I'm just cross that I didn't think of the *potential* for damage connecting/disconnecting Class-2 speakers to a piece of Class-1 earthed equipment. My multi-meter shows 102VAC between the shield on the audio cable coming from the Creative powered speakers and mains earth! Modern gear is probably more tolerant than 1980's technology, but definitely something for others to be aware of to reduce the risk of damage to other vintage gear.102 volts!!!???I would never have thought of this....A
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