USER MANUAL
MANUAL DE INSTRUCCIONES
NOTICE D'UTILISATION
BEDIENUNGSANLEITUNG
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INSTRUCTION MANUAL
1. IMPORTANT NOTE 04
1.1. Compliance with international standards 04
2. INTRODUCTION 04
3. INSTALLATION 05
3.1. Location and assembly 05
3.2. Mains connection 05
3.3. Audio input connections 05
3.4. Audio output connections 05
3.5. Remote control port 05
4. OPERATION AND USAGE 06
4.1. Start up 06
4.2. AUTO STANDBY Function 06
4.3. LED indicators 06
4.4. Setup jumpers 06
5. CLEANING 07
6. LIST OF FUNCTIONS 07
7. DIAGRAM OF FUNCTIONS 07
8. TECHNICAL CHARACTERISTICS 26
9. BLOCK DIAGRAM 27
10. CONFIGURATION DIAGRAM 28
All numbers subject to variation due to production tolerances. NEEC AUDIO BARCELONA S.L. reserves the right to make
changes or improvements in manufacturing or design which may affect specifications.
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1. IMPORTANT NOTE
Congratulations! You have acquired the result of painstaking design and manufacturing. Thank you
for having chosen our eCA120HZ micro amplifier.
In order to get the optimum operation and efficiency from your product, it is VERY IMPORTANT before you plug anything - to read this manual very carefully and take seriously into account all
considerations specified within it.
We strongly recommend that its maintenance be carried out by our Authorised Technical Services.
1.1. Compliance with international standards
The eCA120HZ micro amplifier complies with the following international standards:
• EN55103-1 Electromagnetic Compatibility.
Product family standard for audio, video, audio-visual and entertainment lighting control apparatus
for professional use
Part 1: Emission
• EN55103-2 Electromagnetic Compatibility.
Product family standard for audio, video, audio-visual and entertainment lighting control apparatus
for professional use
Part 2: Immunity
• EN60065 Audio, video and similar electronic apparatus. Safety requirements
Complying with the requirements of directives 2006/95/EC and 2004/108/EC
2. INTRODUCTION
The eCA120HZ is a very small mono amplifier with high impedance output (70/100 V line) and a
remote control function via its 0-10 VDC port, it's an ideal choice for audio-visual applications: school
rooms, meeting rooms, multimedia presentations, commercial premises, etc.
Main characteristics:
• 1 x 120 W RMS @ 70/100V high impedance
• Universal external power supply
• AUTO STANDBY function: in the absence of an audio signal the unit automatically goes into STANDBY
mode, minimising power consumption
• Lightweight, silent, high-performance amplifier (fan-free convection cooling)
• 1 unbalanced stereo line input (LINE IN / STACK), with dual RCA connector and 3-pin Euroblock
connector
• Local volume control by knob
• Remote volume control by WPm series wall panel (0-10VDC)
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3. INSTALLATION
3.1. Location and assembly
The eCA120HZ is suitable for installation on a wall or under a surface (table, shelf, cupboard, etc.),
thanks to its design and layout of its connectors, controls and LED indicator lights.
3.2. Mains connection
The amplifier is powered by alternating current through its external power source: 100-240 VAC and
50-60 Hz.
The atmosphere should be as dry and dust free as possible. Do not expose the unit to rain or
water splashes. Do not place liquid containers or incandescent objects like candles on top of the unit.
Should any work or connection / disconnection task be done, always disconnect the unit from the
mains supply. There are no elements that can be manipulated by the user inside the amplifier.
To avoid buzzing, do not allow the power cable to intertwine with the shielded cables that
transport the audio signal.
3.3. Audio input connections
The eCA120HZ input channel only supports stereo line signals (or two mono signals). It has an
unbalanced stereo connection with dual RCA connector and 3-pin Euroblock connector (LINE IN / STACK).
This input is designed to support -6dBV to 0dBV signals, given that the rotary volume control of the front
panel provides an extra +6dB of gain at its maximum position.
This audio input can receive signals from CD players, radio tuners, mixing consoles, media players,
audio outputs of computers and tablets, etc.
LINE IN and STACK connections are linked, so that when you use one of them as an audio signal
input for your unit, you can use the other to send that signal to another unit or external equipment.
NOTE: Turntables CANNOT BE CONNECTED directly to this device because none of the inputs
have an RIAA preamp.
3.4. Audio output connections
The amplified output (OUTPUT) uses a Euroblock connector with a common terminal (0V), a
terminal for a 70V line and another terminal for a 100V line. Always use the common terminal and,
depending on the type of speaker in the system, one of the two others, 70 or 100V, to feed the loudspeaker
line.
The connection cable that connects the eCA120HZ connectors and the speakers should be good
quality, with a suitable cross section and as short as possible.
The OUTPUT provides an amplified version of the mono-converted input signal.
Remember that the total power used by the speakers connected to the eCA120HZ output should
not exceed the maximum power it can provide.
3.5. Remote control port
• The RJ-45 REMOTE connector allows to connect a WPmVOL-type wall control panel (or
another model of the WPm series) to adjust the overall output volume. The connection is
made with a standard CAT5 cable between the WPm wall panel and the REMOTE connector
of the eCA120HZ.
The jumper labeled "REMOTE" on the front panel has to be in the ON position to enable the
remote volume control.
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4. OPERATION AND USAGE
4.1. Start up
Start up the eCA120HZ by connecting the equipment to an external power source to which the
DC 24V connector of the eCA120HZ has already been connected. The LED indicator ON/STBY
immediately lights up on the front panel. We recommend you turn on all the devices in the following
order: sound sources, mixer, equalisers, active filters and processors and, finally power amplifiers.
Powering off should be done by following the exact reverse sequence. Following this order, the
introduced noise due to turning on or switching off the devices will not affect those further on in the chain
and will be inaudible.
Once turned on, the front volume control (VOLUME) and the controller connected to the
REMOTE port (if any) may be used to set the output volume of the signal amplified by the unit.
4.2. AUTO STANDBY Function
The AUTO STANDBY function (idle or low consumption mode) means you can install the
eCA120HZ in inaccessible places and leave the device connected to the mains power supply permanently
because when no signal is detected, it automatically goes into standby mode, saving energy.
To enable the AUTO STANDBY mode, the jumper labeled "AUTO STBY" on the front panel has to
be in the ON position. When it is enabled and after 2 minutes or more without any audio signal at the audio
input of the device (or a very weak signal, lower than the activation threshold), the eCA120HZ will
automatically switch into standby mode, lighting up the amber ON/STBY LED located on the front panel of
the device. When a valid audio signal is detected in any of the inputs, the eCA120HZ leaves standby mode
and starts operating normally again and the ON/STBY LED goes green.
When enabling the AUTO STANDBY mode with the front panel jumper (ON position), one of the 2
following assumptions may occur:
a) There is NO audio signal in the inputs. Result: the amplifier immediately goes into AUTO
STANDBY mode
b) There is an audio signal in the inputs. Result: the amplifier stays active
4.3. LED indicators
• SP: The signal presence or SP LED indicator shows that there is a signal in the amplifier
input. This lights up when the input level reaches the established detection threshold.
• CLIP: The saturation or CLlP LED indicator comes on when the signal delivered to the
speakers is close to the amplifier's clipping or saturation level. Input signals should be set to
ensure the CLIP (saturation or cut off) indicators never stay on, but that they do so at most to
the beat of the lowest sound frequencies. Otherwise the amplified signal will be distorted with
low quality and low intelligibility.
Note: If the input signal is too high, the CLIP indicator lighting up very frequently over a
short time interval (a few seconds), the amplifier may go into protection mode, being muted to
return to normal operation in a short time
• ON/STBY: the green light comes on when the equipment is in normal operating mode and it
goes orange when it is in standby or low consumption mode (STANDBY).
4.4. Setup jumpers
• REMOTE: enables (ON) the remote volume control from a WPm-type wall panel (or another
model of the WPm series) connected to the REMOTE port.
• AUTO STANDBY: Switch the AUTO STANDBY function on (ON) or off. When the function is
on, the eCA120HZ will automatically go into STANDBY or low consumption mode in the
absence of audio signals in its inputs.
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5. CLEANING
The eCA120HZ must not be cleaned with solvents or abrasive substances which may damage the
prints. Clean using a cloth moistened in water and a neutral liquid detergent, then dry with a clean cloth.
Under no circumstances allow water to enter any of the orifices in the equipment.
6. LIST OF FUNCTIONS
1. ON/STBY on or standby indicator light
2. DC24V power connector
3. CLIP indicator light
4. OUTPUT amplified signal 0V/70V/100V
5. SP input signal presence indicator light
6. VOLUME knob
7. Euroblock input line, STACK
8. RCA input line, LINE IN
9. RJ-45, REMOTE connector
10. REMOTE & AUTO STANDBY jumpers
7. DIAGRAM OF FUNCTIONS
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MANUAL DE INSTRUCCIONES
1. NOTA IMPORTANTE 10
1.1. Conformidad con normativas internacionales 10
2. INTRODUCCIÓN 10
3. INSTALACIÓN 11
3.1. Ubicación y montaje 11
3.2. Conexión a red eléctrica 11
3.3. Conexiones de audio de entrada 11
3.4. Conexiones de audio de salida 11
3.5. Puerto REMOTE de control remoto 11
4. OPERACIÓN Y USO 12
4.1. Puesta en funcionamiento 12
4.2. Función AUTO STANDBY 12
4.3. Indicadores LED 12
4.4. Puentes (jumpers) de configuración 13
5. LIMPIEZA 13
6. LISTA DE FUNCIONES 13
7. DIAGRAMA DE FUNCIONES 13
8. CARACTERÍSTICAS TÉCNICAS 26
9. DIAGRAMA DE BLOQUES 27
10. DIAGRAMA DE CONFIGURACIÓN 28
Todos los datos están sujetos a variación debida a tolerancias de producción. NEEC AUDIO BARCELONA S.L. se reserva
el derecho de realizar cambios o mejoras en la fabricación o diseño que pudieran afectar las especificaciones.
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