In article ,
John Phillips wrote:
I have not found any effect I can hear from a few different types of RF
and spike filtering applied to my kit. I may try an isolating
transformer some time if one turns up that I can use.

Surely most audio equipment already has an isolating transformer as part
of the power supply?

--
*Some days you're the dog, some days the hydrant.

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