Banpuku,
I agree with Zargon......
The correct way to measure the voltage at the receptacle is with a load connected to the circuit. Not just at idle but with music playing at a level you normally listen.
The more dynamic the music material the better for a true measurement.
I agree with Zargon......
I have been measuring my AC voltage of my dedicated circuits for my audio system. During the past 24 hours, the voltage has ranged from 121.5 to 122.3 volts.Loaded? Or without a connected load?
The correct way to measure the voltage at the receptacle is with a load connected to the circuit. Not just at idle but with music playing at a level you normally listen.
The more dynamic the music material the better for a true measurement.