A M P -5 0
Operation Manual
Integrated Amplifier
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CONTENTS
ACCESSORIES
OPERATION AND FUNCTIONS
ON, OFF and Standby
Selecting the input source
Using the function menu
Volume control
Bass control
Treble control
13
13
14
14
15
15
16
16
Accessories
01
02
03
CONTENTS
Contents
Balance control
Loudness
SAFETY PRECAUTIONS
Safety precautions
TROUBLESHOOTING
IMPORTANT SAFETY INSTRUCTIONS
Troubleshooting
17
18
Important safety instructions
IMPORTANT INFORMATION
Important information
04
06
TECHNICAL DATA
Technical data
CONNECTION
Connection to the mains
07
REMOTE CONTROL
Installation of batteries
Using the remote control
Remote control functions
08
08
09
FRONT PANEL CONNECTIONS
Front panel
Connections
10
11
CONNECTION
Audio connection layout
12
02
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SAFETY PRECAUTIONS
A triangle with a lightning symbol draws the user's attention
to "dangerous voltage" without insulation in the cabinet
which may be high enough to entail a risk of electric shock.
A triangle with an exclamation mark draws the user's
attention to important instructions for use and maintenance
in the accompanying manual, which should be studied.
A symbol for CLASS II (double insulation)
WARNING:
CAUTION:
TO MINIMISE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO
NOT EXPOSE THE UNIT TO RAIN OR MOISTURE. DO NOT OPEN
THE CABINET AS IT CONTAINS DANGEROUS VOLTAGE. ONLY
QUALIFIED TECHNICIANS ARE ALLOWED TO CARRY OUT
REPAIR AND SERVICE.
If the plug of the power cord needs to be replaced, it is important that the replacement
is identical to the plug to be replaced, or that the new plug has been recommended by
the manufacturer.
TO AVOID ELECTRICAL SHOCK, IT IS IMPORTANT TO INSERT THE PLUG
CORRECTLY INTO THE SOCKET.
03
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IMPORTANT SAFETY INSTRUCTIONS
WARNING: IT IS IMPORTANT THAT YOU READ AND OBSERVE BOTH THE INSTRUCTIONS IN THIS MANUAL AND
THE INSTRUCTIONS ON THE UNIT. KEEP THIS MANUAL FOR FUTURE REFERENCE.
This unit was designed and manufactured with a view to providing maximum safety for the user. Incorrect use of the unit
may cause electrical shock or fire. The protection devices built into this unit will protect the user if the procedures below
are observed in connection with installation, use and repair. This unit is fully electronic and contains no parts that can be
repaired by the user.
DO NOT REMOVE THE CABINET. RISK OF DANGEROUS VOLTAGE. ONLY QUALIFIED TECHNICIANS ARE
ALLOWED TO REPAIR THE UNIT.
Read the manual
Heat
Upon unpacking the unit,
please read the manual
carefully and observe all the
instructions given.
Do not place the unit near
sources of heat such as radiators,
heat registers, ovens or other
units that produce heat.
Power supply
Only the power supply indicated on the
rating plate must be used for this unit.
If you are not sure which power supply
you have, please contact the distributor
or the local electricity supplier.
Water and moisture
The unit must not be placed
close to water, such as bathtub,
wash basin, kitchen sink or
laundry tub, in a damp cellar or
close to a swimming pool, etc.
Cleaning
Unplug the unit before cleaning.
Do not use liquid detergents and
aerosol cleaning agents. Use a
dry cloth.
Earthing or polarisation
If the plug cannot be inserted properly into the
socket, or if the plug does not fit, the unit must not
be used in your country.
Power cords
Wiring must be organised to
prevent people from stepping on
the cables and to avoid pinching
by objects placed on or beside
them. Take special care around
sockets and plug boxes and
where the power cords leave the
unit.
Ventilation
The cabinet is provided with slots and
openings to ensure ventilation and reliable
operation and to protect the unit against
overheating. Do not block or cover these
openings. The openings must never be
blocked, for instance by placing the unit on
a bed, a sofa, a carpet or similar surface.
Overloading
Make sure that wall sockets,
extension cords and plug
boxes are not overloaded as
this may lead to fire or electrical
shock.
04
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IMPORTANT SAFETY INSTRUCTIONS
Lightning
Damage
Unplug the unit for additional
protection during thunder or when
the unit is not used for prolonged
periods. This will prevent damage
to the unit from lightning and
power surges.
Unplug the unit and contact qualified technicians in
the following cases:
A) If the power cord or the plug is damaged.
B) If liquid has been spilled on the unit or objects
have fallen into the unit.
C) If the unit has been exposed to rain or water.
D) If the unit does not work properly after adhering to
the instructions in the operation manual. Only the
settings described in the operation manual must be
made as incorrect setting may result in damage and
often will make it difficult for a qualified technician to
make the unit work properly again.
E) If the unit has been dropped or damaged in any
other way.
F) When the operation of the unit changes
drastically, the unit requires service.
Penetration of objects and liquid
Never push any foreign objects
through the openings into the unit,
as they may touch dangerous
voltage points or short-circuit parts
and thus cause fire or electric
shock. Do not spill liquid on the
unit.
Accessories
Do not place the unit on unstable surfaces such as a
trolley, stand, tripod, shelf or table.
Service
Do not attempt to carry out any
service work yourself. By opening or
removing the cabinet, you will be
exposed to dangerous voltage or
other hazards. Any service work
should be carried out by qualified
technicians.
The unit may fall and injure children or
adults or be seriously damaged. Use
only trolley, stand, tripod, shelf or table
that is very stable or provided with the
Unit. The uni must be installed in accordance with the
manufacturer’s instructions and by means of
installation equipment recommended by the
manufacturer.
If the unit is placed on a trolley, the trolley must be
moved very carefully. Sudden stops, unnecessary
force and uneven surfaces may cause the trolley to
turn over.
Spare parts
If spare parts are required, make sure that the
service technician uses spare parts specified by the
manufacturer or spare parts with the same
characteristics as the original. Unauthorised spare
parts may cause fire, electrical shock, etc.
Safety check
Loads
After service or repairs on the unit,
ask the service technician to carry
out a safety check to ensure that
the unit is ready for use.
Do not place heavy loads on the
unit and do not step on it. The load
may fall and cause serious injury to
persons or damage to the unit.
05
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IMPORTANT INFORMATION
Handling instructions
Condensation
Condensation may occur in the following cases:
The top and back panel of the unit may become
warm after prolonged use. This is not due to a
defect.
When the amplifier is moved directly from a cold
to a warm place.
Turn off the power when the unit is not used.
When the amplifier is used in a room where the
radiator has just been switched on or a place
where the cold air from the air-conditioning
system is directed at the unit.
Protect the power cord
If the amplifier is used in the summer in a warm
and humid room just after it has been moved
from an air-conditioned room.
Follow the instructions below to prevent abnormal
operation, electrical shock, fire or personal injury:
Hold the plug firmly when inserting it into the
socket.
If there is steam or a high level of humidity in the
room.
Avoid heat-producing devices.
Do not place objects on the power cord.
Do not carry out service work on or change the
power cord.
In case of condensation, the amplifier will not work
properly. Turn off the unit. Unplug the unit and leave
it for 2-3 hours. The amplifier will then have
adapted to the environment and any condensation
will have disappeared.
Positioning
Do not place the unit in any of the following
places:
In sunlight, close to heat-producing devices or in
an enclosed rack.
In places with high temperatures (40C or more)
or high relative humidity (90% or more).
In dirty places as some internal parts may be
damaged.
Do not put your fingers or any
other objects into the unit
Touching the internal parts is dangerous and may
cause injury or damage. Do not open the cabinet.
Do not place any foreign matter in the unit.
Interference
Placing the amplifier near a television set, radio
or video player may cause poor picture and
sound quality. In that case, move the amplifier
further away from the television set, radio or
video player.
06
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CONNECTION
Connection to the mains
230-240V AC~50Hz
Do not turn on the power before all connections have been made correctly.
Check that all connections have been made correctly before turning on the
power.
Check that the mains voltage is 230-240V AC50Hz before turning on the
power.
Connection to the mains
Check that all other connections have been made correctly before inserting the mains plug into the wall
socket.
Then insert the plug into a suitable socket.
If the unit is to be used abroad, you may need an adapter.
07
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REMOTE CONTROL
Installation of batteries
Remove the cover as illustrated.
Replace the cover.
Position two batteries of the type
AAA/R03/UM4 in the battery
compartment. Make sure that the
orientation of the batteries is correct (see
drawing at bottom).
Do not mix new and old batteries and do not use different types of batteries.
If the remote control is not used for prolonged periods, remove the batteries from the remote control
to avoid corrosion.
Using the remote control
VOLUME
Direct the remote control at the sensor on the front
Volume -37,5db
tuner
POWER
HEADPHONE
panel of the amplifier. When the remote control signal
PHO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
is received, the unit reacts accordingly. The remote
control works within a range of 6 metres.
AMP-50 AMPLIFIER
+
+
Sometimes the remote control does not work well in strong light. You may have to move the amplifier if it is a
problem.
Malfunction may occur if other remote controls are used near the amplifier.
Do not place any objects on the remote control, as the batteries may become flat if a key is depressed
constantly.
Make sure that there are no obstacles between remote control and amplifier.
Do not position the amplifier behind tinted glass as it may reduce the maximum range of the remote control.
08
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REMOTE CONTROL
Remote control functions
DAB-50 FUNCTIONS:
Scroll +/-: Switches between DAB and FM
stations
Select: Switches between MONO and AUTO
on the FM band, and selects the DAB station
displayed.
1-4 : Selects stored stations. If depressed for
more than two seconds, a station is stored
under the number concerned.
+
Power: Sets the DAB-50 in standby mode.
Autotune: Press once to automatic tune in
to DAB stations. Depress button for two
seconds to initiate an international search.
At FM, the autotune function will search for
a station at a higher frequency.
Info: Displays RDS and DAB information.
Function: Switches between DAB and FM.
CDP-50 FUNCTIONS:
Eject: Opens the CD drive.
Program: Allows playback of the music
tracks on a CD in a certain order.
Stop: Stops playback.
Previous: Selects the previous track.
Depress button to rewind.
Play/Pause: Starts and pauses playback.
Repeat: Repeats a single track or all tracks
on a CD.
Power: Sets the CDP-50 in standby mode.
Next: Selects the next track. Depress
button for fast forward.
+
Random: All tracks are played in random
order.
AMP-50 FUNCTIONS:
Input buttons: Selects input of amplifier.
Treble: Adjusts treble level by means of
VOL + and -.
Bass: Adjusts bass level by means of VOL
+ and -.
Power: Sets the AMP-50 in standby mode.
Volume +/-: Adjusts the master volume.
Some of the amplifier functions can only be performed by means of the remote control. Some functions are
connected with the selected signal input source. Some buttons on the remote control may therefore not be
available if the corresponding signal input source has not been selected.
09
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FRONT PANEL AND CONNECTIONS
Front panel
VOLUME
Volume -37,5db
tuner
POWER
HEADPHONE
AUX 1
AUX 2
PHO
TUNER
DVD
CD
FUNCTION
AMP-50 AMPLIFIER
1
2
3
4
5
6
7
8
9
10
11
1
2
Mains switch: Used to interrupt the mains voltage.
LED indicator: Lights green when the amplifier is turned on. Lights red when the
amplifier is in standby mode or in operation.
Headphone jack: 6-mm jack that suits most headphones.
Phono: Activates the Phono input.
Tuner: Activates the Tuner input.
DVD: Activates the DVD input.
3
4
5
6
7
CD: Activates the CD input.
AUX 1: Activates the AUX 1 input.
AUX 2: Activates the AUX 2 input.
8
9
Function: Gives the user access to menu functions such as Bass, Treble, Balance
and Loudness.
Volume: Adjusts master volume, Bass, Treble, Balance and Loudness.
10
11
10
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FRONT PANEL AND CONNECTIONS
Connections
1
2
3
4
5
6
7
8
9
1
2
Line Output: For connection of an external amplifier.
Phono: For connection of a record player (Note: Additional ground terminal available
above inputs).
3
4
5
6
7
8
Tuner: For connection of FM/DAB radio.
DVD: For connection of DVD player (Note: Analogue stereo input).
CD: For connection of CD player.
AUX 1: For connection of optional equipment.
AUX 2: For connection of optional equipment.
Speaker left & right: For connection of loudspeakers.
Note: - The speaker impedance must be between 4 and 16 Ohm.
- For optimal sound quality there must be a proper connection between the
Speaker terminals and the amplifier terminals.
- The cable ends must not be frayed to avoid that they come into contact with
Each other or the cabinet back panel.
AC input: For connection of mains voltage. Make sure that the plug is correctly
inserted, and that the voltage corresponds to the text printed on the cabinet back panel.
9
11
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CONNECTION
Audio connection layout
AMP-50 Integrated Amplifier
Turntable
Speakers
DAB/FM Tuner
CONTROL/TUNING
POWER
1
2
3
4
DAB/FM
AUTOTUNE
INFO
PRESS TO SELECT
DAB-50 DAB/FM-TUNER
DVD Player
Subwoofer
(Optional)
CD Player
POWER
PROGM
RANDOM
PREV.
NEXT
PLAY/PAUSE
STOP
OPEN/CLOSE
CDP-50 CD-PLAYER
VCR
Satelite Receiver
Speakers
Slave amplifier
VOLUME
POWER
HEADPHONE
PHO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
AMP-50 AMPLIFIER
12
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OPERATION AND FUNCTIONS
On, Off and standby
1
2
Turn on the amplifier by pressing the mains switch.
Press the standby button on the remote control to switch to standby
mode. The display will turn off and all functions will be reduced to a
minimum to make sure that the amplifier uses minimal power. When in
standby mode the unit only reacts to the standby button of the remote
control.
3
If you wish to turn off the unit to avoid any power consumption, you must
press the mains switch.
POWER
HEADPHONE
2
1
PHON
+
3
AMP-50 AMPLIFIER
Protect the environment and turn off the unit after use.
Selecting the input source
Turn on the AMP-50.
Now you can call the input source that is active at the moment. Select Tuner to
listen to the radio, CD to listen to a CD, DVD, Phono, AUX1 or AUX2 if units have
been connected to these inputs.
If you do not know which input has been selected, the LCD display will clearly
indicate it.
Note: All inputs are analogue stereo inputs. It means that you cannot connect a
digital sound source through a digital cable (optical or co-axial).
PHO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
Press the Phono, DVD, CD, Tuner AUX 1 or AUX 2
button on the remote control to select the
corresponding input.
Press the Phono, DVD, CD, Tuner, AUX 1 or AUX 2
button on the front panel to select the corresponding
input.
+
13
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OPERATION AND FUNCTIONS
Using the function menu
The AMP-50 features a "function menu" that allows
adjustment of the following: Master volume, bass,
treble, balance and loudness (see menu structure
below).
A description of the individual functions will follow on
the next few pages.
Treble control
+/- 14dB
Loudness
On or Off
Balance control
-37,5 -0dB L or R
Volume control
Default setting
Bass control
+/- 14dB
Volume control
1
2
Press the VOL+ button to increase volume and press VOL -
to reduce volume.
Turn the volume control to the right to increase the volume
and turn the volume control to the left to reduce the volume.
Note:
dB is a professional term for indicating the amplitude of an
audio signal where 0 dB is the maximum output. You will
see that the LCD display of the unit indicates - dB up to 0
dB which is the maximum volume.
The volume control on the front panel can be turned both
clockwise and anticlockwise to change the volume. The
volume control includes 64 steps, from -78,75 dB for
minimum volume and up to 0 dB for maximum volume.
The display also features a bar in the second line that
consists of 16 squares that indicate the volume. The longer
the bar, the higher the volume.
+
1
When the volume control is operated, the first line of the
display will switch from information on input source to
information on volume. When the volume control is no
longer operated, information on input source will be
displayed again after five seconds.
VOLUME
2
PHO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
14
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OPERATION AND FUNCTIONS
Bass control
This amplifier features bass control that allows adjustment of the bass level by +/- 14 dB, from 45Hz to
259Hz.
Please note that the high bass boost level offered by the bass control may lead to permanent damage to
your loudspeakers if the high volume is used for prolonged periods.
Press the BASS button on the remote control to
activate the bass tone control.
Press VOL+ and VOL- to adjust the bass level.
1
2
3
If you wish to adjust the bass level through the front
panel, you must press the FUNCTION button once
until information on bass adjustment is displayed.
Then turn the volume control to adjust the bass level.
4
Note:
2
1
If the bass control is not operated within five seconds,
the display will return to the volume information
display.
+
VOLUME
4
3
PHOO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
Treble control
This amplifier features treble control that allows adjustment of the treble level by +/- 14 dB, from 2KHz to
20KHz.
Please note that the high treble boost level offered by the treble control may lead to permanent damage to
your loudspeakers if the high volume is used for prolonged periods.
Press the TREBLE button on the remote control to
activate the treble tone control.
Press VOL+ and VOL- to adjust the treble level.
1
2
3
If you wish to adjust the treble level through the front
panel, you must press the FUNCTION button once
until information on treble adjustment is displayed.
Then turn the volume control to adjust the treble level.
4
Note:
If the treble control is not operated within five seconds,
the display will return to the volume information
display.
2
1
+
VOLUME
4
3
PHOO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
15
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OPERATION AND FUNCTIONS
Balance control
This amplifier features balance control that allows adjustment of the volume of one loudspeaker at a time
by +/- 38,75 dB, divided into 32 steps.
This function is used to compensate for a non-centred listening position, and makes it possible to get back
the stereo perspective.
VOLUME
2
PHOO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
1
1
2
Press the FUNCTION button on the front panel three times until information on balance control is
displayed.
Turn the volume control to adjust balance.
Note
If the balance control is not operated within five seconds, the display will return to the volume
information display.
Loudness
This amplifier features a loudness function that allows boosting of the volume of the low frequencies at low
volume.
This function is active at frequencies between 20Hz and 800Hz, and the function is dampened when the
amplifier volume is increased. When the volume is at the maximum setting, the loudness function is
completely cut out.
VOLUME
2
PHOO
TUNER
DVD
CD
AUX
1
AUX
2
FUNCTION
1
1
2
Press the FUNCTION button on the front panel four times until information on loudness is displayed.
Turn the volume control to the right to activate the loudness function and to the left to deactivate the
loudness function.
Note
If the loudness function is not operated within five seconds, the display will return to the volume
information display.
16
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TROUBLESHOOTING
Troubleshooting
PROBLEM
CAUSE/REMEDY
No power when the amplifier
Is turned on.
-Switch on the electric current at the socket.
-Check that the plug has been correctly inserted into the
socket.
-The internal fuse has blown and must be replaced by a
qualified service technician.
-The power cord has been damaged and must be replaced
No sound.
-The amplifier has not been turned on.
-The volume control is set at a minimum (see page 14).
-The speaker cables have not been correctly connected.
-A wrong input source has been selected.
-No input source has been connected.
There is sound in one channel only. -The balance control is not correctly adjusted (see page
16).
-The audio input cables have been incorrectly connected
or damaged.
-The input source is defective.
-The speaker cables have been incorrectly connected or
damaged.
-The speakers are defective.
High buzzing.
-The audio input cables have been incorrectly connected
or damaged.
-The ground cable for the record player has not been
connected.
-The record player pick-up is defective.
Weak bass and poor stereo
perspective
-The speaker connection is out of phase. Check that the
positive and negative poles have been correctly
connected, both at the back of the amplifier and at the
back of the speaker.
Distortion of sound.
-Some of the conductor wires of the speaker cable are in
contact with each other which causes distortion.
-Bass and treble controls are set too high in relation to
speaker specifications.
-The volume is set too high.
The LCD display does not display
any information.
-The amplifier is defective and should be serviced by a
qualified technician.
“ERROR 1” is displayed on the LCD -The amplifier is defective and should be serviced by a
display
qualified technician.
The unit does not switch between
inputs modes
- The amplifier is defective and should be serviced by a
qualified technician.
17
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TECHNICAL DATA
Technical data
Phono input
Input impedance
Input sensitivity
47 KOhm
3.8mV
Line level inputs (Tuner, CD, DVD, AUX1, AUX2)
Input impedance
Input sensitivity
47 Kohm
200mV
Line level outputs
Output impedance
Line out
Headphones
100KOhm
300Ohm
Maximum output level
Line out
Headphones
740mV
1.25V
Tone control
Treble
Bass
+/- 14dB
+/- 14dB
Output power
2 x 40 Watt at 4 Ohm
2 x 30 Watt at 8 Ohm
Frequency response
Distortion
10Hz to 63KHz (-3dB)
<0.05%
Signal/noise ratio
>90dB
Voltage and power consumption
Dimensions (WxDxH)
Weight
See back panel
430 x 290 x 75mm
5.3Kg
We reserve the right to change the technical data and the design of the product without notice as a result of
further development.
18
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