Shure Digital IntelliMix SCM820 Manual page 7

Unbalanced aux input sums left and right channels to mono. Front and back panel aux inputs are summed to a mono signal
and routed without automixing to the mix outputs.
⑥ Master Output Knob
Adjusts settings and status of the mix outputs. See Front Panel Modes for details.
Rotate: Adjusts output gain or limiter threshold.
Momentary Press: Overrides a soloed channel to return the mix to the headphone output.
Press and Hold: Mutes the audio or bypasses the limiter.
⑦ Master LED Ring
Displays gain setting or limiter threshold. A single LED represents each mixer when they are both selected but set to differ-
ent levels.
⑧ Master Mode Selection
Selects the function (gain or limiter) of the master knob and LED ring.
⑨ Mix Select Button
Selects Mix A, Mix B, or both for adjustment with the master knob and monitoring on the LED ring and headphone output.
Note: When both Mix A and Mix B are selected, the headphone output only monitors Mix A.
⑩ Mix Status Indicator
LED
Green
Amber
Red
⑪ Audio Output Meters
Monitor the output signal level and limiter threshold for mix A and B.
⑫ LIM (Limiter) LEDs
Illuminate amber when the audio levels exceed the limiter threshold.
⑬ System Status Indicators
The LEDs illuminate to indicate system settings:
LED
power
ethernet
network audio
Mix Status
Mix is selected for adjustment and listening on the headphone output.
Limiter is bypassed.
Mix is muted.
Color
Green
Green
Green
Status
Unit is powered on.
Unit is connected to a network.
All connected receive channels are OK (receiving digital audio
as expected).
Shure Incorporated
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