4
Front panel
MX12/4—Owner’s Manual
Master control section
1
ST OUT output select switch
This switch selects the signal which is output via the
ST
fader from the ST OUTPUT jacks.
ST position (
)
The ST OUTPUT jacks will output the ST bus signal
(the post-fader signals of groups 1~4, the input signals
from the RTN jacks, the return signal from the internal
digital effect, and the input signal from the TAPE IN
jacks).
GROUP
position (
)
The ST OUTPUT jacks will output the pre-fader sig-
nals of groups 3/4.
When this position is selected, the input channel sig-
nals will be sent directly to the ST bus without passing
through the group buses 1~4. This setting lets you use
the MX12/4 as a simple 12 in-2 out mixer.
2
ST master fader
This fader adjusts the final combined level of all chan-
nels, and sends the signal to the ST OUTPUT jacks.
The meters allow you to view the L and R output levels.
3
GROUP 1~4 faders
These faders adjust the signal levels of groups 1~4, and
send their signals to GROUP OUTPUT 1~4 jacks
respectively and to the ST bus.
Groups 1 and 3 are sent to ST L, and groups 2 and 4 are
sent to ST R.
4
Stereo graphic EQ
This is a stereo 7-band graphic equalizer that adjust the
tonal quality of the signal output to the ST OUTPUT
jacks.
A
±
12dB boost or cut is provided at each of the fre-
quency bands 125, 250, 500, 1k, 2k, 4k, and 8kHz.
5
TAPE IN jacks
These are line level input jacks to which an external DAT recorder or CD player etc. can be
connected for monitoring. The signals which are input here are sent to the ST bus. The input
levels are adjusted by the TAPE IN ST control (
9
). Depending on the setting of the C-R•
PHONES select switch (
D
), the signal can also be monitored directly from the C-R OUT jack.
6
REC OUT jacks
These jacks allow an external DAT recorder or cassette recorder to be connected, to record the
same signal as the ST OUTPUT jacks.
The signals that are output from these jacks are not affected by the settings of the ST master
fader or the graphic EQ. Make recording level adjustments on the recording device.
7
PHANTOM indicator
This indicator will light when the PHANTOM switch (rear panel
2
) is on.
8
POWER indicator
This indicator will light when the MX12/4's power is on.
ST
GROUP
4
GROUP
3
GROUP
2
GROUP
1
0
10
3 4
ST
GROUP
EFFECT
MONI2
METER
C-R•PHONES
TAPE IN
ST
EFFECT
⁄ MONI
C-R•PHONES
0
10
0
10
0
10
0
10
0
10
0
10
ST
MONI
SEND
RTN
MONI 1
MONI
EFFECT ⁄ MONI 2
ST
TAPE IN
ST
0
10
L
R
L
R
TAPE IN
REC OUT
PHANTOM
POWER
ON
VOCAL
L HALL
S HALL
DIGITAL
EFFECT
MONI 1
EFFECT
/ MONI 2
L
R
PEAK
+5
+3
+1
0
-1
-3
-5
-7
-10
-15
-20
ST GRAPHIC EQUALIZER
10
5
0
5
10
15
20
30
40
00
10
5
0
5
10
15
20
30
40
00
10
5
0
5
10
15
20
30
40
00
10
5
0
5
10
15
20
30
40
00
10
5
0
5
10
15
20
30
40
00
+12
-12
6
0
6
+12
-12
6
0
6
8k
4k
2k
1k
500
250
125
3
A
B
1
2
4
5
6
7
8
9
0
C
3
4
