USER GUIDE
9903 / 9904 - December 2011 Version 1.0
120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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Sound levels
Our audio solutions deliver important sound
pressure levels (SPL) that can be harmful
to human health when exposed during long
periods. Please do not stay in close proximity
of operating speakers.
1 - Safety information
This symbol signals an important safety
precaution.
The CAUTION symbol signals a risk of product deterioration.
The WARNING symbol signals a risk to the user’s physical integrity.
The product may also be damaged.
Important safety information
Symbols used
Any maintenance procedure must be performed by a CONTEST
authorised technical service. Basic cleaning operations must thoroughly follow our safety instructions.
This product contains non-isolated electrical components. Do not
undertake any maintenance operation when it is switched on as
it may result in electric shock.
This unit is intended for indoor use only. Do not use it in a wet,
or extremely cold/hot locations. Failure to follow these safety instructions could result in fire, electric shock, injury, or damage to
this product or other property.
WARNING : This unit contains no user-serviceable parts. Do not open the
housing or attempt any maintenance by yourself. In the unlikely even your unit
may require service, please contact your nearest dealer.
In order to avoid any electrical malfunction, please do not use any multi-socket,
power cord extension or connecting system without making sure they are
perfectly isolated and present no defect.
Recycling your device
• As HITMUSIC is really involved in the environmental cause, we only commercialise clean, ROHS compliant products.
• When this product reaches its end of life, take it to a collection point designated by local authorities. The separate collection and recycling of your
product at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that protects human health and the
environment.
Risk of electrocution
To prevent the hazard of electric shocks, do not use
extension cords, multi-socket or any other connection
system without making sure metal parts completely are
out of reach.
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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1 - Please read carefully :
We strongly recommend to read carefully and understand
the safety instructions before attempting to operate this unit.
2 - Please keep this manual :
We strongly recommend to keep this manual with the unit for
future reference.
3 - Operate carefully this product :
We strongly recommend to take into consideration every
safety instruction.
4 - Follow the instructions:
Please carefully follow each safety instruction to avoid any
physical harm or property damage.
5 - Avoid water and wet locations :
Do not use this product in rain, or near washbasins or other
wet locations.
6 - Installation :
We strongly encourage you to only use a
fixation system or support recommended by
the manufacturer or supplied with this product.
Carefully follow the installation instructions and
use the adequate tools.
Always ensure this unit is firmly fixed to avoid
vibration and slipping while operating as it may result in
physical injury.
7 - Ceiling or wall installation :
Please contact your local dealer before attempting any ceiling
or wall installation.
8 - Ventilation :
The cooling vents ensure a safe use of this product,
and avoid any overheating risk.
Do not obstruct or cover these vents as it may
result in overheating and potential physical injury or
product damage. This product should never been
operated in a closed non-ventilated area such as a flight case
or a rack, unless cooling vents are provided for the purpose .
9 - Heat exposure :
Sustained contact or proximity with warm surfaces may cause
overheating and product damages. Please keep this product
away from any heat source such as a heaters, amplifiers, hot
plates, etc...
10 - Electric power supply :
This product can only be operated according to
a very specific voltage. These information are
specified on the label located at the rear of the
product.
11 - Power cords protection:
Power-supply cords should be routed so that they
are not likely to be walked on or pinched by items
placed upon or against them, paying particular
attention to cords at lugs, convenience receptacles
and the point where they exit from the fixture.
Instructions and recommendations
12 - Cleaning precautions :
Unplug the product before attempting any cleaning
operation. This product should be cleaned only with
accessories recommended by the manufacturer.
Use a damp cloth to clean the surface. Do not
wash this product.
13 - Long periods of non use :
Disconnect the unit’s main power during long periods of
non use.
14 - Liquids or objects penetration :
Do not let any object penetrate this product as it
may result in electric shock or fire.
Never spill any liquid on this product as it may
infiltrate the electronic components and result in
electric shock or fire.
15 - This product should be serviced when :
Please contact the qualified service personnel if :
- The power cord or the plug has been damaged.
- Objects have fallen or liquid has been spilled into
the appliance.
- The appliance has been exposed to rain or water.
- The product does not appear to operate normally.
- The product has been damaged.
16 - Inspection/maintenance :
Please do not attempt any inspection or
maintenance by yourself. Refer all servicing to
qualified personnel.
17 - Operating environment :
Ambient temperature and humidity: +5 - +35°C,
relative humidity must be less than 85% (when
cooling vents are not obstructed).
Do not operate this product in a non-ventilated,
very humid or warm place.
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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3 - Presentation
2 - Introduction
The new AMP amplifiers series is dedicated to permanent installations and combines sound quality with ease
of use.
These amplifiers have been developed to fit any installation: low impedance, 70 or 100V, they will adapt to
your needs.
Their high-pass filter allows you to limit basses and create subtle background musics, without power or quality
losses.
1
4
3 5 6 7 8 9
2
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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7
HPF Switch
This switch allows you to activate or deactivate the highpass filter.
Activate this filter when noticing humming or buzzing
noises.
8
INPUT and LINK sockets
INPUT : Connect here a line-level source.
LINK : Allows you to send the signal to another device.
9
GROUND Switch
Allows you to connect the housing to the ground.
When a "snoring" noise close to 50Hz appears, position
this switch onto FLOAT.
1
Indicator LEDs
These LEDs indicate the status of your device:
- SIGNAL: Indicates an incoming signal.
- -20 dB: Indicates the signal is in the best range
possible, for an optimal sound quality.
- CLIP: Indicates the signal sound level is too high.
- PROTECT: Indicate the amplifier is in protection mode
due to overheating or short-circuits.
Notes :
- The PROTECT LED should always light up upon
activation of your device.
- If the PROTECT LED remains lit, please turn your
amplifier off, wait for it to cool down and check the
wiring.
- If this LED remains lit and previous instructions have
been observed, please contact a qualified technician.
2
Power switch
Allows you to turn ON/OFF your device. The POWER
LED will lit when your device is activated.
3
24V DC Connector
The AMP120/240 amplifiers might be set up in public
places as public adress devices. In order to prevent
them from being deactivated upon power failure, they
feature a 24V emergency power input.
4
Power input with fuse
Connect here the supplied IEC cord and connect it to an
electrical outlet after making sure the delivered voltage
is compatible with your device.
Fuses
AMP120 T3.15AL / 250V
AMP240 T6.3AL / 250V
5
Output terminals
Connect here your speakers or recessed speakers.
These terminals can be used in many ways, depending
on your installation.
Please refer to next chapter for more details about the
different types of installations.
6
INPUT ADJUST control knob
Allows you to adjust the incoming signal from -12dB to
0dB.
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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Input connector
Output terminal
4 - Getting started
CAUTION: Before any cabling, please make sure the amplifier is not connected to an electrical outlet and the
power switch is positioned onto OFF.
The INPUT and LINE sockets are balanced.
They can also receive unbalanced signals.
You will find below the wiring principle of such connectors.
Please use high-quality cables to connect your speakers.
In order to prevent short-circuits, please tin the cables before connecting them to the output terminal.
You will find below a table of correspondence between the amplifier/speakers distance and cable sections in
order to prevent signal quality losses.
Distance Section
Up to 8 m 1,5 mm²
Between 8 and 12 m 2 mm²
Between 12 and 18 m 3,5 mm²
Between 18 and 30 m 5 mm²
Between 30 and 45 m 8,5 mm²
Between 45 and 60 m 13 mm²
Note: Never use screened cable to carry amplified signals.
2 = Hotspot (+)
2
3
1
3 = Coldspot (-)
1 = Ground
Banlanced
2 = Hotspot (+)
2
3
1
Shunt between
1 et 3 pins
1 = Ground
Unbalanced
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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Wiring and impedances
Speaker or ceiling speakers 8and 4
ȍ ȍ ȍ
ȍ
70V/100V speaker or ceiling speakers
Transformer
Transformer
Please make sure to respect the polarities when connecting your speakers to your amplifier.
Connect the speakers equipped with transformers to COM, 100V or 70V terminals depending on the type of
transformer.
Connect your 4 Ohms speakers to COM and 4 Ohms terminals.
The table below will give you more information about voltages and impedances of each terminal.
AMP120
4 Ohms / 22V 41 Ohms / 70V 83 Ohms / 100V
AMP240
4 Ohms / 31V 21 Ohms / 70V 41 Ohms / 100V
70 or 100V wiring 4 Ohms wiring
Caution: The sum of all
connected speakers must not
exceed the maximum power of
your amplifier.
Caution: Never connect 4 Ohms
speakers and speakers with
transformers simultaneously.
Caution: Your speakers or
recessed speakers must not
have an impedance lower than
4Ω.
Dangerous voltage
Speakers must be connected last to
the amplifier.
Turn the amplifier on when the
installation is over and has been
checked thoroughly.
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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B+
5 - Synoptic
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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7 - Technical specifications
AMP120 AMP240
ELECTRICAL SPECIFICATIONS
Power
(T.H.D 1,0%, 1KHz)
120 WattsΩ 240 Watts
Gain settings -12 dB ~ 0 dB
Input sensitivity
(Balanced input)
1.0 +/- 0.1 Vrms / 10 KΩ
High-pass filter (400 Hz) - 3 dB
Frequency response 70 Hz - 18 KHz (+1,5dB / -3dB)
Signal to noise ratio Higher than 90dB
T.H.D at half power and 1 KHz Lower than 1%
Output voltages and impedances
4Ω / 22V 4Ω / 31V
41Ω / 70V 21Ω / 70V
83Ω / 100V 41Ω / 100V
Power consumption at 1/8 of max power 185 Watts 361 Watts
Power supply 100V~240V AC, 50/60Hz and/or 24V DC
PHYSICAL SPECIFICATIONS
Cooling system Fans
Operating temperature and humidity 0°~40° with 95% humidity max.
Dimensions (W x D x H) 482 x 340 x 88 mm
Net weight 11.65 Kg 13.87 Kg
AMP120/240 - 120/240W Public Address Amplifier with 4 Ohms/70/100V outputs
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Because AUDIOPHONY® takes the utmost care in its products to make sure you only get the best possible quality, our products are
subjects to modifications without prior notice. That is why technical specifications and the products physical configuration might differ
from the illustrations.
Make sure you get the latest news and updates about the AUDIOPHONY® products on www.audiophony.com
AUDIOPHONY® is a trademark of HITMUSIC S.A. - Zone Cahors sud - 46230 FONTANES - FRANCE
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