Monacor AKB-160 Notice page 2

AKB-160
Order Number 17.4260
ELECTRONICS FOR SPECIALISTS ELECTRONICS FOR SPECIALISTS
PA Amplifier
with 100 V Output
These instructions are intended for installers
of PA systems (chapters 1 – 7) and for users
without any specific technical knowledge
(chapters 1 – 3 and chapter 6). Please read
the instructions carefully prior to operation
and keep them for later reference.
1 Applications
This compact and easy-to-use amplifier is de-
signed for small PA systems using 100 V. Its rated
output power is 40 W. The amplifier features a
protective circuit against overheating.
2 Safety Notes
The unit corresponds to all relevant directives of
the EU and is therefore marked with
WARNING The unit uses dangerous mains
voltage. Leave servicing to skilled
personnel only and never insert
anything into the air vents! Inex-
pert handling may result in electric
shock.
During operation, there is a hazard of contact
with a dangerous voltage up to 100 V at the
speaker terminal (4). Always switch off the am-
plifier before connecting.
•
The unit is suitable for indoor use only. Protect
it against dripping water and splash water, high
air humidity and heat (admissible ambient tem-
perature range 0 – 40 °C).
•
Do not place any vessel filled with liquid on the
unit, e. g. a drinking glass.
•
Do not operate the amplifier and immediately
disconnect the mains plug from the socket
1. if the unit or the mains cable is visibly dam-
aged,
2. if a defect might have occurred after the unit
was dropped or suffered a similar accident,
3. if malfunctions occur.
In any case the unit must be repaired by skilled
personnel.
•
Never pull the mains cable to disconnect the
mains plug from the socket, always seize the
plug.
•
For cleaning only use a dry, soft cloth; never use
water or chemicals.
LEVEL LINE INPUT
L
R
0 10
UNBAL.
1 2
ELECTRONICS FOR SPECIALISTS
•
No guarantee claims for the unit and no liability
for any resulting personal damage or material
damage will be accepted if the unit is used for
other purposes than originally intended, if it is
not correctly connected or operated, or if it is
not repaired in an expert way.
If the unit is to be put out of operation
definitively, take it to a local recycling
plant for a disposal which is not harmful
to the environment.
3 Installation and Connection
of the Amplifier
Install the amplifier at a suitable place. To ensure
sufficient cooling, air must always be able to flow
freely through the cooling fins on the rear side of
the unit and through the air vents of the housing.
.
All connections should be made by skilled per-
sonnel only. Always switch off the units before
connecting!
1) There are two possibilities for connecting a sig-
nal source with line level (e. g. MP3 / CD player,
radio, mixer):
a) For balanced signals, use the XLR jack (3).
b) For unbalanced signals, use the RCA
jacks (2). When both RCA jacks are used
at the same time, the input signals will be
mixed. This will result in a mono signal when
a stereo signal source is connected.
2) Connect all 100 V speakers in parallel to the
plug-in screw terminal SPEAKER OUTPUT (4).
The speakers must not exceed a total load of
40 W RMS. When connecting several speakers
always make sure that they have the same po-
larity (e. g. left terminal = negative connection).
SPEAKER
OUTPUT
100 V
Hint: When connecting, handling will be easier if you
disconnect the terminal from its plug-in connection.
3) Finally connect the mains cable provided to
the mains jack (5), then connect the plug to a
mains socket (230 V/ 50 Hz).
SPEAKER
OUTPUT
COM 100 V
BAL.
3 4 5
MONACOR INTERNATIONAL GmbH & Co. KG • Zum Falsch 36 • 28307 Bremen • Germany
Copyright by MONACOR INTERNATIONAL. All rights reserved.
©
ELECTRONICS FOR SPECIALISTS ELECTRONICS FOR SPECIALISTS
max. 40 W RMS
100 V 100 V
POWER
230 V~
50 Hz
FUSE
6 7
ELECTRONICS
4 Operation
CAUTION Never adjust the amplifier to a
very high volume. Permanent high
volumes may damage your hear-
ing!
Your ear will get accustomed to high volumes
which do not seem to be that high after some
time. Therefore, do not further increase a high
volume after getting used to it.
Note: To prevent switching noise, always switch on the
units connected before switching on the amplifier. After
use, switch off the amplifier first.
1) Set the control LEVEL (1) to "0" for the time
being. Switch on the amplifier with the POWER
switch (7); the switch is illuminated.
2) Adjust the desired volume with the control
LEVEL.
3) After use, switch off the amplifier with the
POWER switch.
5 Specifications
Speaker output: . . . . . . . . 100 V
Output power
Rated power: . . . . . . . . . 40 W
Music power: . . . . . . . . . 60 W
Inputs (sensitivity/ impedance)
RCA: . . . . . . . . . . . . . . . 420 mV/ 11 kΩ
XLR, bal. . . . . . . . . . . . . . 390 mV/ 26 kΩ
Frequency range: . . . . . . . 17 – 20 000 Hz, −3 dB
S / N ratio: . . . . . . . . . . . . . > 80 dB
THD: . . . . . . . . . . . . . . . . . < 1 %
Power supply: . . . . . . . . . . 230 V/ 50 Hz
Power consumption: . . . . . 75 VA max.
Ambient temperature: . . . 0 – 40 °C
Dimensions (W × H × D): . 213 × 55 × 238 mm
Weight: . . . . . . . . . . . . . . 3.2 kg
Subject to technical modification.
Operating Elements and Connections
1 Volume control
2 Audio input (RCA jacks)
3 Balanced audio input (XLR jack)
4 Speaker terminal
5 Mains jack for connection to a socket (230 V/
50 Hz) via mains cable provided
6 Support for the mains fuse
Always replace a blown fuse by one of the
same type.
7 Power switch
A-1429.99.02.03.2019