Mains noise you can hear sounds like a hum at 50 or 60 hz but there is more to it than that , cheap switch mode power supplies, powerline ethernet adapters LEDs especially ones you can dim in your home all introduce additional noise (most of which is at frequencies you can’t hear) and DC offset. This and groundloops destroy your soundstage, tibre and microdynamics.
some excellent advice already in this thread.
Higher end components can deal with noisy mains better , but you can still improve by paying attention to details. Once you have this sorted then you can look for even quieter (blacker) backgrounds by moving on to vibration control.
well designed cabling (which doesn’t have to cost your left nut) and well dressed can also really help but this is about protection of the system from rfi/emi mostly
I’m assuming you have already given thought to speaker and room interactions.
take care off all of that you will get great sound.
some excellent advice already in this thread.
Higher end components can deal with noisy mains better , but you can still improve by paying attention to details. Once you have this sorted then you can look for even quieter (blacker) backgrounds by moving on to vibration control.
well designed cabling (which doesn’t have to cost your left nut) and well dressed can also really help but this is about protection of the system from rfi/emi mostly
I’m assuming you have already given thought to speaker and room interactions.
take care off all of that you will get great sound.