Originally Posted by Jeremy A-H
By way of some background, it seems in December one of our neighbours put in PowerLine adaptors to get around the networking issues inherent in new-build properties; the signal from which not even the Shunyata kit could eliminate and the sound stage completely collapsed.
This really doesn't sound right to me. Many people run electrical items that create noise such as Powerline adaptors and switched PSU's, but do not suffer/report a sound stage completely collapsing, let alone when some (more devoted listeners around us) run kit to clean up power such as the Shunyata kit that you mention.

A signal from a neighbouring powerline adaptor, certainly in a typical UK street, would likely have travelled 100 yards or more, past several other houses on a different phase, through several meters other devices all screwing with the signal and thats even before taking into account time of day differences such as voltage, frequency, environmental issues, health and just plain old psychoacoustics.

Personally, I would say that the root cause is closer to home, and possibly worth getting the Shunyta guys in with their meter to check your Shunyta kit is working properly and maybe even home in on the source of the problem. Need to follow the evidence.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).