Very well observed...Dirty power = Distortion (noise) comes from 3 primary sources:
- The utility company – coming into the utility box.
- Appliances within the house – eg: TV’s, computers, fluorescent lighting, refrigerators, HVAC, hair-dryers, etc
- The audio components themselves – especially, the digital ones.
Each digital component – modem, router, streamer, bridge, DAC, etc – regurgitates noise back into the audio circuit – as well as throughout the house – and visa versa. Eventually, this noise creates distortion in the audio signal.
I concur with your experience...
But my budget make me unable to cope with any other solution than homemade peanuts costs...
"Golden plate" all along my electrical house grid main stations...
I am very proud to have created it.... It is not perfect but very audible for me...
Shungite plate+a copper taped sheet on the external side of the application...
I cannot afford 2 PIMM’S
No need now....