Music Mixer User Manual

16
[Rear]
PRE
AMP
OUT 1
H : Hot
C : Cold
E : Earth
PRE
AMP
OUT 2
E
C
H
E
C
H
E
E
4
4
3
3
1
2
2
1
VOL2
REMT
VOL1
REMT
OUT
IN
I/O
CTRL
E
IN
E
IN
M-9000 CU
40W
120V 60Hz
MODE
MIXERMATRIX
RS-232C
34
35
36
37 38 39
40 41
• M-9000
250 W
120V 60Hz
CLASS 2 WIRING
NEGATIVE(–) TERMINALS
TOGETHER.
DO NOT CONNECT
WARNING
OUT 1
OUT 2
E
E
4
4
3
3
1
2
2
1
VOL2
REMT
VOL1
REMT
OUT
IN
I/O
CTRL
E
IN
E
IN
OUT
SP
–
+
–
+
70V
70V
A-9120DH CU
MODE
MIXERMATRIX
RS-232C
PRE
AMP
OUT 1
PWR
AMP
IN 1
PRE
AMP
OUT 2
PWR
AMP
IN 2
3433
34
35
36
37 38 39 40 41
• A-9060DH, A-9120DH
This figure represents the A-9120DH.
33. Speaker output terminal
Connects the 70 V high-impedance speaker.
34. AC inlet
Connects the supplied power cord.
35. RS-232C serial communication port
Connector for communications with a personal
computer or control equipment.
36. Functional earth terminal
Hum noise may be generated when external
equipment is connected to the unit. Connecting
this terminal to the functional earth terminal of the
external equipment may reduce the hum noise.
Note: This terminal is not for protective earth.
37. Mode switch
Selects the unit's operation mode (either matrix
or mixer).
The switch is factory-preset to the matrix mode.
38. Control-I/O connection terminal
Connect a 10 kΩ (linear taper) variable resistor or
input the DC voltage of 0 to +10 V to the remote
volume control terminals (REMT VOL 1 and 2)
when remotely adjusting the volume.
Input and output terminals (IN and OUT) are
used to change the unit's internal status or output
internal status data to external equipment after
having received various control signals.
39. Blank panel (accessory)
Attach the blank panels to open slots.
40. Module slots
900 Series or 9000 Series modules can be
inserted into these slots.
(Refer to p. 66 "MODULE INSTALLATION.")
41. Preamplifier output
and Power amplifier input terminals
[M-9000 Matrix mixer]
There are 2 preamplifier output terminals.
For unbalanced connection, connect the unit's
Hot and Earth terminals to the connected
equipment's Signal and GND terminals,
respectively. (Keep the unit's Cold terminal free.)
0 dB, 600 Ω, balanced type
[A-9060DH and A-9120DH Amplifiers]
There are 2 preamplifier output terminals and 2
power amplifier input terminals.
Connecting a plug to the power amplifier input
terminal internally disconnects the preamplifier
section from the power amplifier section.
Both terminals: 0 dB, 300 Ω, unbalanced type