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PA Mixing Amplifier
These instructions are intended for installers
of PA systems (chapters 4 to 7) and for users
without any specific technical knowledge
(chapter 8) . Please read the operating instruc-
tions carefully prior to operating the unit and
keep them for later reference .
All operating elements and connections de-
scribed can be found on page 2 .
Contents
1
2
Safety Notes 14
3
4
5
6
7
71 Speakers 15
711
721
722
723
Paging input 15
751
781
782
Alarm input 16
8
Operation 17
821
PA-2420Z 17
822
PA-2410Z 17
85 Siren 17
861
871
872
873
9
10
12
1 Control Elements
and Connections
1.1 Mixing amplifier PA-2410Z / 2420Z
1 Cover of the insertion compartment;
an insertion module from MONACOR can
be installed here, e . g . tuner, CD player,
message storage module
2 Volume controls, one each for the input
channels 1 - 5
Control 1 can also be used to adjust the
volume for the desk microphones PA-
4300PTT .
Control 2 can also be used to adjust the
volume for the zone paging microphones
PA-2400RC . (Exception with the PA-2410Z:
☞
chapter 8 .7 .1)
3 Bass controls and treble controls to adjust
the sound, one each for the input chan-
nels 1- 5
4 Bass control and treble control to adjust
the tone of the insertion module
5 Button CHIME to trigger the chime
6 Control to adjust the volume of the chime
7 Control TEL PAGING to adjust the volume
of a signal source at the input terminals
PAGING IN (24)
8 Control to adjust the volume of the siren
9 Buttons to switch the siren tones on and
off
repeated wailing, (tone rising and
falling)
rising tone followed by continuous
tone
10 LED indicator PROTECT; will light up in case
of an amplifier failure (e . g . due to overload
or overheating)
11 Control MASTER to adjust the total volume
12 LED indicators
STAND-BY: standby mode
POWER:
operating mode
13 POWER switch
14 PA-2420Z only:
Zone selection buttons
Z1 - Z20: zones 1- 20
ALL:
all zones of the corresponding
row of buttons
When the button is pressed
again (for 2 seconds), the previ-
ous selection will apply .
15 Output level indicator
CLIP: Overload indicator
16 PA2410Z only:
Volume selection switches, one each for
the zones 1-10
OFF: Zone off
17 Mains connection cable for connection to
a socket (230 V/ 50 Hz)
18 Plug-in screw terminals (removable) for the
100 V speakers of the zones 1-10 or 1- 20
Important: Each output can only be loaded with
an RMS power of max . 60 W (PA-2420Z) or 30 W
(PA-2410Z) . The total load of all 100 V speakers
connected must never exceed 240 W .
19 Screw terminals AC POWER REMOTE to
switch the amplifier on and off by remote
control via a normally open contact
20 Screw terminals DC POWER for emergency
power supply (⎓ 24 V))
21 Plug-in screw terminals LOW IMP for a
low-impedance speaker with a minimum
impedance of 4 Ω , regardless of the zone
selection
Important: Never use this output simultaneously
with the 100 V outputs (18, 22); the amplifier may
be overloaded .
22 Plug-in screw terminals HIGH IMP to con-
nect 100 V speakers, regardless of the zone
selection
Important: The total load - load at this output
plus the total load by the speakers at the zone
outputs (18) - must never exceed 240 W; other-
wise, the amplifier may be overloaded .
23 Fuse for the 24 V emergency supply unit
Always replace a blown fuse by one of
the same type!
24 Plug-in screw terminals PAGING IN to con-
nect a signal source with line level out-
put for announcements of higher priority
(
☞
table in fig . 5 in chapter 3)
25 Plug-in screw terminals E / M MESSAGE
CONTROL for connection of a normally
open contact to trigger an announce-
ment (e . g . emergency announcement)
when a message storage module (e . g .
PA-1120DMT) is installed .
26 6 .3 mm jacks PRE OUT and AMP IN to in-
sert an audio processing unit, for example
When the jack AMP IN is used, the internal
signal connection to the power amplifier
will be interrupted .
27 Connections REC (RCA jacks) for a recorder
L (left) and R (right) jacks are provided
for stereo recorders . Since the amplifier is
monophonic, the signals at the two jacks
are identical .
28 Inputs LINE IN (RCA jacks) for the chan-
nels 4 and 5; L (left) and R (right) jacks are
provided for stereo signal sources . Since
the amplifier is monophonic, the stereo
signals are internally combined to a mono
signal .
29 Inputs for microphone level and line level
(combined XLR / 6 .3 mm jack), balanced;
one input each for the input channels 1- 3
30 Controls GAIN to match the input gain
with the signal source (microphone level
to line level); one control each for the input
channels 1- 3
31 Switches PHANTOM POWER, one each
for the input channels 1- 3; when the
switch is engaged, a DC voltage of 15 V
for phantom-powered microphones will
be available at the XLR contacts of the
Caution: To prevent loud switching noise, use the
switch only when the amplifier has been switched
off, the outputs have been muted or the control
MASTER (11) has been set to "0" . Do not connect
any microphone (or other type of signal source)
with unbalanced signal output when phantom
power has been activated; otherwise, the mi-
crophone (or other type of signal source) may
be damaged .
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