Hi Shaun,

Glad to hear that smile

Yes, the GISO doesn't just achieve galvanic isolation of earth and signal lines, but does filtering as well.

Thinking a bit more about the EMsafe, while there'd clearly be no sonic reason for including filtering, as EMO isn't an audio company, they might well have put in similar filtering just to get rid of noise and to preserve signal integrity over longer runs.

808v5, MD600 & DSP7200.1
Dedicated audio mains supply