Hercules STREAM 200 XLR Manual Del Usuario página 17

Advanced features
Mute all button: lets you mute all audio sources
controlled by Hercules Stream 200 XLR.
When the function is enabled, the button's red LED is lit
up and all volume bars are red. You can change the
volume levels of tracks, but you can no longer enable or
disable the sound of an individual track. To do this, you
need to press the button again to disable the Mute all
function.
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