ecwl
500+ Head-Fier
I suspect you need to ground something somewhere. My best guess is the Optical Rendu connected to the M-scaler with the switching power supply. But it's possible you need to ground the M-Scaler instead.I have a bit of a weird issue. I am experiencing an issue using the Ra 21-C-Cu (made out of copper) when listening to music connected to:
a) Focal Arche+Rasperry Pi (Roon endpoint) with an iFi iPower power supply
b) Dave+Mscaler+Sonore Optical Rendu+Optical module (Dave+Mscaler using stock PSUs, Rendu units using a switching power supply)
-->Source gets internet through an ethernet cable plugged into a Devolo powerline adapter
After 10-15 minutes of listening my ears start getting small electrical shocks that are not painful but certainly unpleasant.
Any ideas??? Has anyone had to deal with this sort of issue before??
I would try the iFi Groundhog+
https://ifi-audio.com/products/groundhog/
Because it comes with so many adaptors, you can ground different devices with the adaptors until you figured out where the problem is.