EN
- 5 -
When the microswitch 3 is activated (HIGH PASS FILTER) a high pass filter is introduced in the signal
path to reduce the low frequency noise.
The microswitch 4 (48 V PHANTOM) activates the 48 V phantom power supply for condenser micro-
phones.
CONNECTION
- Make the connections with the amplifier and all the components of the audio system switched off and
disconnected from the power supply.
- Firstly connect the audio sources or microphones to the required inputs.
- Connect the loudspeaker to the loudspeaker output. Use the low impedance output 4-8-16 Ω or the high
impedance lines output 100 or 70 V, according to the type of loudspeakers to be connected. Do not use
the two types of output at the same time.
- If using the low impedance output the loudspeakers must be connected in a series/parllel circuit so that
the load impedance of the loudspeakers is the same as the impedance of the amplifier output and that
the power supplied by the amplifier does not exceed that withstood by the loudspeakers.
- If using the high impedance output lines 100 or 70 V all the loudspeakers must be connected in parallel
and the sum of the power of all the loudspeakers must not exceed the power supplied by the amplifier.
-
IMPORTANT
: if using the output zones Z1-Z5, do not forget to connect the VIN terminal with the 100 V
terminal.
Note
: do not use the zone outputs (Z1-Z5) and the general loudspeaker outputs (100 V or 70 V) at the
same time.
- Once the connections have been made according to your needs, connect the devices to the power
supply and switch them on. After use, do not forget to switch them off and disconnect the device from
the power supply.
Z5
Z4
Z3
Z2
Z1
COM
LINE OUT
DIPS FUNCTION:
1. AUX1 (OFF) / AUX2 (ON)
2. -10 dB PAD ENABLE
3. HIGH PASS FILTER
4. 0 dBV (OFF) / -10 dBV (ON)
L
R
PRE OUT
INPUT 5
INPUT 4
INPUT 3
INPUT 2
INPUT 1
LEVEL
CHIME
PRIORITY
FM
TEL. INPUT
2
L
R
L
R
1
AMP IN
2
L
R GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
L
R GND
VIN
100 V 70 V COM 16 Ω
8 Ω
4 Ω
COM
POWER CONSUMPTION: 1,100 W
MA-680RGUZ
PA AMPLIFIER
720 W MAX., 680 W RMS
~110-120 V AC. 50/60 Hz FUSE: T8 AL 250 V
~220-240 V AC. 50/60 Hz FUSE: T4 AL 250 V
CAUTION: SHOCK HAZARD - DO NOT OPEN
RISK OF FIRE-REPLACE FUSE AS MARKED
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
TEL.
DIPS FUNCTION:
1. LINE (OFF) / MIC (ON)
2. PHASE
3. HIGH PASS FILTER
4. +48 V PHANTOM
DIPS FUNCTION:
1. LINE (OFF) / MIC (ON)
2. PHASE
3. HIGH PASS FILTER
4. +48 V PHANTOM
DIPS FUNCTION:
1. LINE (OFF) / MIC (ON)
2. PHASE
3. HIGH PASS FILTER
4. +48 V PHANTOM
DIPS FUNCTION:
1. LINE (OFF) / MIC (ON)
2. PHASE
3. HIGH PASS FILTER
4. +48 V PHANTOM
1
INPUT 1
PRIORITY
SIREN
HOT COM GND
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
MA-680RGUZ
Telephone switchboard
CD player
