Mark Levinson N 326S Owner's Manual page 37

Nº326S Preamplifier Basic Operation
The Mute parameter can be used to determine the amount of
master volume level attenuation that occurs when mute is
activated. The mute level can be set in 0.1dB increments
between –10.0dB and –80.0dB. The factory-default mute level
is –20.0dB.
Note
Pressing the volume ± buttons deactivates mute, adjusting
master volume from the muted volume level.
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(continued)