Chapter 7: C|24 Analog Audio Controls 67
Mic/Line/DI Preamplifier Controls
The Mic/Line/DI Preamplifier section includes 16 sets of controls for the built-in microphone pream-
plifiers, and switches to apply phantom power (in two groups of 8 channels).
Mic Pre Controls
Input Level Knobs (1-8, 9-16)
The Input Level knob adjusts the gain of the cor-
responding preamplifier.
Clip Indicators
The Clip Indicator is a Red LED that lights when
the corresponding preamplifier receives an in-
put signal that exceeds its capacity.
Source/HPF Switch
The Source/HPF switch cycles through input
sources and toggles high-pass filter in/out status
for the corresponding preamplifier, in this or-
der: Mic, Mic+HPF in, Line, Line+HPF in.
Source and HPF Indicators
The Source Indicators show the active input
source, Mic (yellow) or Line (green), and the
HPF Indicator shows the high-pass filter status
for the corresponding preamplifier.
Phantom Power Switches
The +48V (Phantom Power) switches toggle
phantom power on and off for Mic/Line/DI
preamplifiers 1-8 and 9-16 respectively. The
switches light to indicate that power is applied.
MIc/Line/DI preamplifiers
Mic/Line/DI preamplifiers
1-8
Mic/Line/DI preamplifiers
9-16
Mic Pre controls
Input level knob
HPF indicator
Line indicator
Clear Clip
indicator
Mic indicator
Source/HPF
switch
Phantom Power switches
Phantom
Phantom
Power
for
Preamps 1-8
Power
for
Preamps 9-16