In article ,
Johnny B Good wrote:

One final note, it's good practice to power all of the components of a
"separates" Hi-Fi setup from a single ring main socket[1] via a quality
mains multi-socket extension lead or specialist connection strip. This
neatly isolates ground loop currents that can occur when using different
sockets on a ring main due to induced currents from heavy loads such as
washing machines, toasters, kettles etc.

I have a dedicated AV radial circuit here. With the earth for that going
light back to the house earth. Not sure that bit makes any difference,
though, but no big deal when installing it.

--
*INDECISION is the key to FLEXIBILITY *

Dave Plowman London SW
To e-mail, change noise into sound.