If you're *really* getting any difference ( try measuring ? ) then I'd suggest
you
need to take a look at your incoming mains. It must be awful in some unknown
respect ( gross interference from industrial plant ? )

No industrial plants I know of. The differences with a mains isolation
transformer are subtle, but audible and very satisfying in fact. There's always
a danger of trying to seperate binaries such as "theory versus practice" on
this ng, and I'm simply reporting what I hear in this instance. It may be the
case that 'if you can hear a difference there's something grossly wrong' but I
somehow don't think there's anything grossly wrong anywhere in this case.

=== Andy Evans ===
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