A few years ago I counted the number of appliances on the same circuit as my Hi-Fi. I was shocked when the total came to 21! As I had space for a another circuit breaker on my consumer unit I decided to run a dedicated shielded mains cable to my music system and used good quality sockets. It was an easy job as the consumer unit was only a 6 meter straight run to the sockets and I was able to "fish" the cable under the floor. The results were well worth the effort as it eliminated potential mains interference from switch mode power supplies, TV, modem, router, led lighting etc. and resulted in a clear improvement in sound quality.
Dutch & Dutch 8c - roon lifetime
South Coast England