HiFi Choice 2025/03
MANY DEVICES PRODUCE RF
noise that can interfere with the
sound from your audio system.
Mobile phones and computer
systems generate RFI that can be
picked up by your house wiring.
Also, low-quality switched-mode
power supplies, such as those often
supplied with chargers can generate
high-frequency noise that can be
injected back into your ring main
and further pollute the sound.






