Unfortunately, most of us, power most of our gear, from mains AC..... and have to bear with/deal with its frequency and harmonics thereof...
With the move to Solar power and batteries, maybe we will start to shift to DC battery based systems - that would indeed eliminate all hum!
(of course then you have all those recordings made on AC powered gear that may well have humm recorded into there "baked in"...)
With the move to Solar power and batteries, maybe we will start to shift to DC battery based systems - that would indeed eliminate all hum!
(of course then you have all those recordings made on AC powered gear that may well have humm recorded into there "baked in"...)