4
Front Panel
MC32/12, MC24/12—Owner’s Manual
Stereo input channels
The MC32/12 and MC24/12 provide two stereo input channel modules. Use the paired
INPUT 13/14 and 15/16 jacks (see page 17, rear panel
5
) to input stereo signals. If you
connect signals only to the 13L (MONO) jack or 15L (MONO) jack, the same signal will
be sent t the o M1–4 and ST buses.
A
GAIN control
This control is used to adjust input sensitivity. The adjustable range is +10 dB to –34 dB.
B
PEAK indicator
This indicator lights up when the level of signals that have been processed by the EQ
reaches 3 dB below the clipping level.
C
High pass filter switch
This high pass filter is used to cut the frequency range below 80 Hz with a slope of 12 dB/
oct.
D
EQ controls (HIGH/HI-MID/LO-MID/LOW)
This 4-band equalizer provides
±
15 dB of cut and boost over each range, with the center
frequencies and types shown in the following table.
E
EQ switch
This switch is used to turn the equalization on and off.
F
M1–M4 mix level controls
These controls are used to route the post fader signals from the stereo input channel to
MIX buses 1–4. When stereo signals are input, the L channel signal will be sent to MIX
buses 1, 3, and the R channel signal will be sent to MIX buses 2 and 4.
G
ON switches (M1–M4)
These switches are used to turn on and off the signals routed from the stereo input channel
to MIX buses 1–4.
H
M5–M10 mix level controls
These control knobs route the stereo input channel signals to MIX buses 5–10. Stereo
input signals are mixed into a monaural signal and sent to MIX buses 5–10. Use the PRE
switches
9
to select pre- or post-fader.
Band
Center frequencies
Type
HIGH
10 kHz
shelving
HI-MID
3 kHz
peaking
LO-MID
800 Hz
peaking
LOW
100 Hz
shelving
Note:
When you press down the M1–M4 switches to the FIX position in the Variable/
Fix select section (see page 6), the output level of signals sent to the MIX buses will be
fixed and the corresponding M1–M4 mix level controls will be disabled.
Note:
When these switches are set to off, no signals are sent from the stereo input
channel to the corresponding MIX buses regardless of the setting of the switches in the
Variable/Fix select section (see page 6).
+15
–15
EQ
ON
PEAK
HIGH
+15
–15
HI-MID
+15
–15
10
0
LOW
M1
10
0
M2
ON
10
0
M3
ON
10
0
M4
ON
10
0
M5
PRE
10
0
M6
PRE
10
0
M8
PRE
10
0
R
L
M10
BAL
ON
PFL
ST
10
0
M9
10
0
M7
+15
–15
LO-MID
–34
+10
GAIN
10
5
0
5
10
20
30
40
50
60
3
5
1
2
4
0
B
C
D
A
7
9
6
8
80
