4.2 Rear panel
8 Mains jack for connection to a socket
(230 V~/ 50 Hz) via the mains cable provided
9 Support for the mains fuse
Always replace a blown fuse by one of the
same type.
10 Speaker terminals with transparent protec-
tive cover; to connect the speakers, fold up
the cover
Examples for connection see figs: 3 – 8
Either connect 100 V or 70 V speakers to the
terminals "70 V" or "100 V" and "COM" (figs. 3,
4); the maximum speaker load for the ampli-
fier is 120 W (PA-312) or 240 W (PA-324),
otherwise it may be damaged
or connect a speaker or a speaker group with
a total impedance of at least 4 Ω to the termi-
nals "4 – 16 Ω" and "COM". Figures 5 to 8
show various ways to obtain the minimum
impedance. However, there are also other
possibilities.
WARNING Always fold down the cover when
operating the amplifier. A dan-
gerous high voltage is present at
the terminals; you will risk an
electric shock if you touch them.
11 Control MUTE LEVEL to adjust the level of
volume attenuation for the inputs MIC 2, MIC 3
(14), INPUT 4 and INPUT 5 (16) when an an-
nouncement is made via the input MIC 1 (2, 12)
12 Input MIC 1 (combined XLR / 6.3 mm jack, bal.)
to connect a microphone; for a phantom-
powered microphone, engage the button
PHANTOM POWER (13)
The jack is connected in parallel with the jack
MIC 1 (2) on the front panel. For the priority
circuit of the input MIC 1 see item 2.
13 Button PHANTOM POWER to activate the
48 V phantom power for the jack MIC 1 (12)
on the rear panel
[The jack MIC 1 (2) on the front panel is not
able to supply phantom power.]
Caution! When the phantom power has
been activated, do not connect any micro-
phone with unbalanced output; this micro-
phone may be damaged.
14 Inputs MIC 2 and MIC 3 (6.3 mm jack, unbal.)
to connect microphones
15 Input TEL INPUT (plug-in screw terminal) to
connect a telephone system with line level
output or another line signal source for impor-
tant announcements.
With a signal present at this input, the signals
at the other inputs will be faded out.
To make connection easier, it is possible to
remove the terminal from its plug-in connec-
tion.
16 Inputs INPUT 4 and INPUT 5 (6.3 mm jack,
unbal.) to connect audio units with line output
(MP3 / CD player, radio, tape deck, etc.)
17 Line output OUTPUT for the mixed signal to
connect, for example, an additional ampli-
fier if more speakers are required than the
PA-312 / PA-324 can handle
All rights reserved by MONACOR
manual may be reproduced in any form or by any means for any commercial use.
5 Specifications
Output power
PA-312: . . . . . . . . . . 120 W
PA-324: . . . . . . . . . . 240 W
THD: . . . . . . . . . . . . . . < 0.5 %
Outputs
Speaker: . . . . . . . . . 4 – 16 Ω, 70 / 100 V
LINE: . . . . . . . . . . . . 0.775 V/ 600 Ω
Inputs
Sensitivity/ impedance; connection
MIC 1: . . . . . . . . . . . 5 mV/ 600 Ω;
MIC 2, MIC 3: . . . . . 5 mV/ 600 Ω;
INPUT 4, INPUT 5: . 350 mV/ 10 kΩ; RCA
TEL INPUT: . . . . . . . 1 V/ 10 kΩ, screw
Phantom power
for MIC 1: . . . . . . . . . . 48 V ,
Frequency range: . . . . 50 – 16 000 Hz
Tone controls
BASS: . . . . . . . . . . . ±10 dB / 100 Hz
TREBLE: . . . . . . . . . ±10 dB / 10 kHz
S / N ratio
MIC 1 – 3: . . . . . . . . 66 dB
TEL INPUT 4 + 5: . . 80 dB
Power supply: . . . . . . . 230 V~ / 50 Hz
Power consumption
PA-312: . . . . . . . . . . 450 VA max.
PA-324: . . . . . . . . . . 740 VA max.
Ambient temperature: . 0 – 40 °C
Dimensions
PA-312: . . . . . . . . . . 430 × 88 × 335 mm, 2 RS
PA-324: . . . . . . . . . . 430 × 88 × 380 mm, 2 RS
Weight
PA-312: . . . . . . . . . . 7.8 kg
PA-324: . . . . . . . . . . 16.6 kg
Subject to technical modification.
®
INTERNATIONAL GmbH & Co. KG. No part of this instruction
GB
, 160 W
RMS
MAX
, 340 W
RMS
MAX
1 × XLR / 6.3 mm jack,
balanced
1 × 6.3 mm jack, unbal-
anced
6.3 mm jack,
unbalanced
terminals, bal.
to be activated
7