9
English
6 Operation
To prevent switching noise, first switch on the
units connected, then switch on the amplifier with
the POWER switch (25) . The yellow LED “PWR
ON” of the level indication (8) lights up .
6.1 Amplifier part
1) Turn up the control MASTER (3) until the fol-
lowing adjustments can be heard well .
2) Mix the input signals with the controls INPUT 1
to 5 (1), the signal of the radio part with the
buttons VOLUME (16) and the signal of the
CD player with the buttons and (22)
or fade them in and out, if required . Always
set the volume of the channels which are not
used to zero .
3) Adjust the definitive volume with the control
MASTER . The LED chain (8) shows the output
level . If the red LED frequently lights up, the
amplifier is overloaded . Then turn back the
control MASTER accordingly .
4) Adjust the sound with the controls BASS and
TREBLE (2) in an optimum way .
5) If a switch or a momentary pushbutton is
connected to the terminals PRIORITY (26),
this switch can be used to mute all signals
at INPUT 2 to INPUT 4 and AUX 1/ 2 . Thus,
an announcement via the channel INPUT 1 is
easier to understand .
If a chime is to sound additionally at the be-
ginning of an announcement when the switch
or pushbutton connected is pressed, switch on
the chime with the button CHIME (9) .
6) For acoustic alarm, the siren can be switched
on with the switch SIREN (10) .
7) After operation, first switch off the amplifier
and then all other units connected .
6.2 Radio part
To switch on the radio part, keep the button
POWER (15) pressed until the display (4) lights
up . The radio part must always be switched on
additionally, also after a power failure or when
the amplifier has been switched off and on again
with the mains switch (25) . Select the volume with
the buttons VOLUME (16) .
6.2.1 Storing stations
It is possible to store 5 FM stations and 5 AM
stations:
1) Select the reception range with the button
AM / FM (11) . The reception range is shown
on the left of the display (4):
FM
AM
2) Keep the button UP or DOWN (12) pressed
until the station scanning starts forward or
backward .
3) The station scanning stops at the next station .
Restart the scanning until the desired station
is found .
4) If stations are very close to each other, make a
fine adjustment, if required: actuate the but-
ton UP or DOWN only for a short time so that
the frequency received will be increased or
reduced in small steps until the best reception
quality is obtained .
5) To store, press the button MEMORY (13) . A
horizontal segment flashes on the right of the
display .
6) Press the station button M1 – M 5 (14) under
which the station is to be stored . The display
confirms the storing procedure with the in-
dication OK .
7) For all further stations to be stored, repeat the
steps . The stations remain stored up to one
week after the amplifier has been switched off .
6.2.2 Calling up stored stations
First select the reception range with the button
AM / FM (11) [shown on the left of the display] and
then the desired station with the corresponding
station button M1 to M5 (14) . The number of
the adjusted station is shown on the right of the
display .
6.3 CD / MP3 player
It is possible to replay standard audio CDs in-
cluding those you have burnt yourself (CD-R) .
Depending on the CD type, CD burner and burn-
ing software used, problems may occur when
rewritable CDs (CD-RW) are replayed . MP3 files
can be replayed from CDs or via the USB port (17) .
6.3.1 Note on sound interruptions and
reading errors
Cigarette smoke and dust will easily penetrate
through all openings of the unit and also set-
tle on the optics of the laser sampling system .
If this deposit causes reading errors and sound
interruptions, the unit must be cleaned by skilled
personnel . Please note that there will be a charge
on cleaning, even during the warranty period!
6.3.2 Replaying titles
1) Switch on the CD player with the button
(23) . It must always be switched on addi-
tionally; also after a power failure or when the
amplifier has been switched off and on with
the mains switch (25) .
Note:
After actuating the button , wait for at least
3 seconds before pressing it again . Otherwise, the
CD player may be locked . In this case, switch the unit
off and on again with the mains switch (25) .
2) Open the CD tray (5) with the button (24)
and insert a CD with the lettering facing
upwards . Close the tray with the button .
After the CD has been loaded (indication
), the first title starts automatically [indi-
cation
(b)] .
3) Additionally or alternatively, a USB stick may
be inserted into the USB port (17) .
Note:
Due to the large number of storage device
manufacturers and device drivers, it cannot be guar-
anteed that all storage media are compatible with
the CD / MP3 player .
4) To switch between the USB connection and a
CD, press the button CD / USB (20) .
5) Adjust the volume of the CD player with the
buttons and (22) (indication
…
) .
6) The replay can be interrupted with the button
II
(19) at any time [indication
II
(c) appears;
the playing time (h) flashes] and be continued .
7) To select another title, shortly press the button
I
(7) (to advance one title) or the button
I
(to go back to the title beginning, each time
the button is pressed, the player goes back
another title) . With a CD with several folders
(not for standard audio CDs), the titles are
replayed and selected in the following order:
1 . all titles without folder in the root directory
2 . all titles in folders in the root directory
3 . all titles in subfolders etc .
8) During the replay, it is possible to advance
and go back within a title . To advance, keep
the button
I
pressed; to go back, keep the
button
I
pressed .
9) To stop the replay, press the button
(6) .
6.3.3 Repeat functions and random replay
1) To repeat the title, press the button
(21)
once . The display shows REP (a) .
2) To repeat all titles of the CD, press the button
a second time . The display now shows
REP ALL (e) .
3) To replay the titles in a random order, press
the button
a third time . The display now
shows RAN (f) .
4) To switch off the additional function, press
the button
, until the indication RAN will
be extinguished .
6.3.4 Anti-shock memory
The anti-shock memory of the CD player will be
able to compensate temporary shocks or vibra-
tions occurring during the CD sampling; however,
it will not be able to compensate continuous,
severe vibrations . The more segments of the
memory indication (i) are shown, the longer in-
terruptions can be compensated .
7 Specifications
Amplifier part
Rated power: . . . . . . . . . 120 W
THD: . . . . . . . . . . . . . . . . 0 .5 % at 1 W
Speaker outputs: . . . . . . . 4 / 8 / 16 Ω, 70 / 100 V
Inputs (sensitivity, impedance)
Microphone
INPUT 1 – 4: . . . . . . . . . 1 .8 mV, 5 kΩ, bal .
Phantom power supply:
⎓
48 V
Line INPUT 1 – 4: . . . . . . 300 mV, 5 kΩ, bal .
Line AUX 1, AUX 2: . . . 100 mV, 10 kΩ, unbal .
Frequency range: . . . . . . 50 – 16 500 Hz, ±3 dB
Tone controls
BASS: . . . . . . . . . . . . . . ±10 dB at 100 Hz
TREBLE: . . . . . . . . . . . . ±10 dB at 10 kHz
S / N ratio: . . . . . . . . . . . . > 65 dB
Radio part
Reception range
FM: . . . . . . . . . . . . . . . 87 .5 – 108 MHz
AM: . . . . . . . . . . . . . . . 525 – 1650 kHz
Sensitivity FM /AM: . . . . . 2 .5 / 20 µV
S / N ratio FM /AM: . . . . . . 65/ 50 dB
General information
Power supply: . . . . . . . . . 230 V/ 50 Hz
Power consumption: . . . . max . 365 VA
Ambient temperature: . . 0 – 40 °C
Dimensions (W × H × D): 482 × 110 × 450 mm,
2 RS (rack space)
Weight: . . . . . . . . . . . . . 10 .5 kg
Subject to technical modification .
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®
INTERNATIONAL
GmbH & Co. KG. No part of this instruction manual
may be reproduced in any form or by any means for
any commercial use.
