On a mono track the CE still doesn't hum but the meters read different depending on the console selected.
S-Type the right side meter rest at -30 and never moves.
N-Type the right side rest at 0 and never moves.
A-Type the right side rest at -12.
These readings are when the track is playing and I start on S-Type and switch through the other types while the audio is playing.
If I start the audio when the S-Type or A-Type is selected the right side never moves.
Start the audio when the N-Type is selected and the meter moves up to 0 and stays there.
During any of this im still not getting any hum or noise.