Connecting The Amplifier; Operation; Specifications - Monacor PA-1200 Instruction Manual

5 Connecting the Amplifier

All connections should only be made by special-
ized personnel and in any case with the amplifier
switched off!
5.1 Speakers
1) For connecting the speakers screw off the pro-
tective cover (22) . The connecting possibilities
are shown in the figures 3 to 9 .
2) Either connect 70 V or 100 V speakers for the
four PA zones to the terminals Z 1 – Z4 (26)
and COM (24); a total load of 120 W RMS by
the speakers must not be exceeded, otherwise
the amplifier will be damaged . Set the selector
switch 70 V / 100 V (27) to the corresponding
position .
Or connect a speaker group with a total im-
pedance of at least 4 Ω or 8 Ω to the terminals
4 Ω or 8 Ω (25) and COM (24) accordingly .
3) When connecting, always observe the correct
polarity . The terminal COM is always the neg-
ative pole . The positive pole of the speaker
cables is especially marked .
WARNING During operation there is a dan-
gerously high voltage up to 100 V
at the terminals Z 1 – Z4 (26) . There
is a shock hazard .
After the connection screw down the cover (22)
in any case so that it is not possible to touch the
contacts accidentally .
5.2 Inputs
Microphone for announcements
jack (8) on the front panel
Further microphones
XLR jacks* CH 2 and CH 3 (21) and CH 4 (33)
Set the line / microphone selector switches (32
and 34) to position MIC .
When connecting phantom-powered micro-
phones to the channels CH 2 and CH 3, switch
on the 15 V supply voltage with the corre-
sponding DIP switch PHANTOM POWER (35) .
Caution! Only actuate the switch with the amplifier
switched off (switching noise) . With the phantom
voltage switched on, no microphone with unbal-
anced output must be connected to the correspond-
ing input as this microphone may be damaged .
Devices with line output
(e . g . tuner, CD player, etc .)
XLR jacks* CH 2 and CH 3 (21) and
RCA jacks (30 and 31)
Set the line / microphone and line / phono se-
lector switches (29, 32, 34) to position LINE .
The XLR jacks are balanced, but they can also be
connected in an unbalanced way . For this purpose
connect the pins 1 (ground) and 3 at the XLR plug .
The pin configuration is shown in fig . 10 .
Turntable
RCA jacks (30)
Set the line / phono selector switch (29) to
position PHONO .
Switchboard to be able to pass on announce-
ments from this switchboard via the PA system
(with automatic volume attenuation of all other
inputs)
terminals TEL IN (20) for signals with line level
* The balanced XLR jacks (21 und 33) should be used
preferably because a balanced signal transfer offers the
best interfer ence suppression, especially with long con-
nection cables .
5.3 Output PRE OUT
Further amplifier
6 .3 mm jack (28)
Here the complete mixed signal is available, the
volume is independent of control MASTER (13) .
5.4 Additional chime button
To be able to activate the chime remotely from the
amplifier, connections for a momentary push-but-
ton are provided . Connect the momentary
push-button to the terminals CHIME REMOTE (19) .
5.5 Power supply and
emergency power supply
1) For continuous operation of the amplifier in
case of a possible mains failure, connect the ter-
minals 24 V ⎓ (23) to a 24 V emergency power
supply unit (e . g . PA-24ESP from MONACOR) .
Note: If the 24 V voltage from the emergency power
supply unit is present at the terminal 24 V ⎓ , the
amplifier cannot be switched off with the mains
switch (14) . In case of mains failure or if it is switched
off, it automatically switches to emergency power
supply .
2) Finally connect the supplied mains cable to the
mains jack (15) first and then to a mains socket
(230 V / 50 Hz) .

6 Operation

6.1 Switching-on and
mixing the channels
1) Prior to switching-on, set the control MAS-
TER (13) to zero to prevent switching noise .
Then switch on the amplifier with the button
POWER (14) . The red LED ON (7) lights up as
an operational check .
2) Switch on the desired speaker groups with the
switches SPEAKER SELECTOR (5) .
3) Turn up the control MASTER (13) so far that the
further adjustments can be heard well .
4) With the mixing controls CH 1 (9), CH 2 to CH 4
(10), CH 5 (11), and possibly with the control
of the installed insertion module, adjust the
volume of the individual channels among each
other . Always turn to zero the controls of the
channels which are not used .
5) Adjust the sound with the controls BASS and
TREBLE (12) . If an insertion module is installed,
the sound for it can additionally be changed
with the controls "Bass Pack Treble" (3) .
6) Adjust the definitive volume with the control
MASTER (13) . If necessary, correct the adjust-
ment with the mixing and sound controls . If the
red LED "+2" of the level indication (6) lights
up, slightly turn back the control MASTER .
6.2 Volume attenuation with
microphone announcements
To improve the intelligibility of announcements via
the channel CH 1, the volume of the other chan-
nels can automatically be attenuated when talking
into the microphone of channel CH 1 . Adjust with
the control MUTE (36) to which extent the volume
of the other channels is to be attenuated in case
of an announcement:
control at the left stop:
no volume attenuation
control at the right stop:
maximum volume attenuation
6.3 Chime /alarm siren
1) Prior to an announcement it is possible to
activate the chime with the button CHIME (2)
or with a button additionally connected [to
the terminals (19)] . If the chime sounds, the
volume of all channels is reduced, however,
not the volume of channel CH 1 .
2) The alarm siren can be switched on and off
with one of the two buttons SIREN (4):
button ~ for howling siren
button − for continuous siren
As long as the siren sounds, all channels are
muted, however, not channel CH 1 .
6.3.1 Switching over between 2-tone chime
and 4-tone chime
A jumper in the amplifier allows selection of
2-tone chime or 4-tone chime .
WARNING The chime must be switched over
by skilled personnel only . For this
purpose, the amplifier must be
opened . Always disconnect the
mains plug from the socket before
opening the amplifier, otherwise
you will risk an electric shock!
1) If an emergency power supply unit is con-
nected, disconnect it from the terminals
24 V ⎓ (23) to make sure that the amplifier is
definitely out of operation .
2) Unscrew the housing cover of the amplifier .
3) Use the jumper MS 1 on the main PCB [below
the two plug-in connections CN 5 (5-pole) and
CN 15 (2-pole)] to adjust:
position "2t" = 2-tone chime
position "4tone" = 4-tone chime
4) Screw on the housing cover again .

7 Specifications

Output power
Rated power: . . . . . . . . . . 120 W
THD: . . . . . . . . . . . . . . . < 1 %
Music power: . . . . . . . . . . 170 W
Outputs
Speakers: . . . . . . . . . . . . . 1 × 4 Ω
1 × 8 Ω
4 × 70 V or 100 V
Preamplifier: . . . . . . . . . . . 1 V / 1 kΩ
Inputs
CH 1 – 4 (Mic): . . . . . . . . . . 1 .5 mV / 600 Ω
CH 2 – 5 (Line): . . . . . . . . . 150 mV / 47 kΩ
CH 5 (Phono): . . . . . . . . . . 1 mV / 47 kΩ (RIAA)
Frequency range: . . . . . . . . 80 – 15 000 Hz
Tone control (mixed signal)
Bass: . . . . . . . . . . . . . . . . ±10 dB / 100 Hz
Treble: . . . . . . . . . . . . . . . ±10 dB / 10 kHz
S / N ratio
Mic: . . . . . . . . . . . . . . . . . > 60 dB
Line: . . . . . . . . . . . . . . . . . > 70 dB
Power supply
Mains voltage: . . . . . . . . . ~ 230 V / 50 Hz
Power consumption: . . . . 280 VA
Emergency power supply: . ⎓ 24 V / 11 A
Ambient temperature: . . . . 0 – 40 °C
Dimensions (W × H × D): . . 420 × 122 × 350 mm
Weight: . . . . . . . . . . . . . . . 12 .3 kg
Subject to technical modifications .
All rights reserved by MONACOR
GmbH & Co. KG. No part of this instruction manual
may be reproduced in any form or by any means for
any commercial use.
® INTERNATIONAL
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