Ecler MPA6-150R User Manual [en, de, es, fr]

USER MANUAL MANUAL DE INSTRUCCIONES NOTICE D'UTILISATION BEDIENUNGSANLEITUNG

MPA4-150R MPA6-150R

Graphic Symbol Explanation

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

The lightning flashes printed next to the OUTPUT terminals of the amplifier are intended to alert the user to the risk of hazardous energy. Output connectors that could pose a risk are marked with the lightning flash. Do not touch output terminals while amplifier power is on. Make all connections with amplifier turned off.

WARNING: To prevent fire or shock hazard, do not expose this equipment to rain or moisture.

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at the plugs, convenience receptacles, and at the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Unplug the apparatus during lightening sorts or when unused for long periods of time.

13. Refer all servicing to qualified personnel. Servicing is required when the apparatus has been

damaged in any way, suck as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

14. Disconnecting from mains: Switching off the POWER switch (20) all the functions and light indicators of the amplifier will be stopped, but fully disconnecting the device from mains is done unplugging the power cord from the mains input socket (37). For this reason, it always shall remain readily operable.

INSTRUCTION MANUAL

1. IMPORTANT REMARK 04

2. INTRODUCTION 04

3. INSTALLATION 06

3.1. Placement and mounting 06

3.2. Mains connection 06

3.3. Multi-function 07

3.4. Input connections 09

3.5. Input options 10

3.6. Limiter circuit 11

3.7. Output connections 11

3.8. Output options 12

4. OPERATION AND USAGE 13

4.1. Start up 13

4.2. Input attenuation 13

4.3. Remote control 14

4.4. Connection of the REMOTE control 15

4.5. Indicators 15

5. CLEANING 15

6. DIAGRAMS 16

6.1. Function list 16

6.2. Function diagram 17

6.3. Technical characteristics 66

6.4. Block diagram 67

All numbers subject to variation due to production tolerances. ECLER SA reserves the right to make changes or improvements in manufacturing or design which may affect specifications.

1. IMPORTANT REMARK

Congratulations! You are the owner of a carefully designed and manufactured equipment. We

thank you for having purchased our MPA R power amplifier.

It is VERY IMPORTANT that you read this manual before connecting the amplifier in order to

obtain its maximum performance.

We recommend our authorised Technical Services whenever any maintenance task should be

needed so that optimum operation shall be achieved.

MPA R series amplifiers come with a 3-year warranty.

2. INTRODUCTION

The main features of the MPA4-150R / MPA6-150R multichannel amplifier are:

 Four / six independent channels of amplification, with line-level balanced input.

 Independent "REMOTE" control on each input channel to control the level of the

corresponding signal through, for example, a remote potentiometer. (ECLER accessories are recommended for this use). Any other device which generates a DC voltage from 0 to 10V can be used to adjust the input signal level. It is also possible to use relays or any dry contact to create a remote “MUTE” function for any of the input channels. This allows the user to remotely and independently fix the attenuation/MUTE of the input signal, which will be send to the amplifier selected with the switches on the rear panel of the unit. A single potentiometer (o control signal) can be used for more than one or even all input channels if suitable wiring is used (see detailed information in section 4.4.).

 "STACK" connectors on "INPUT 1, INPUT 2" for sending the signals to other amplifiers or sound

systems.

 Operating modes:

The MPA4-150R amplifier station consists of four 182W/4 amplifiers and the MPA6-150R amplifier station consists of six 200W/4 amplifiers. These channels can be configured through a set of switches found on the rear panel. This allows multiple amplification setups useful in many situations, for example:

o Four / six independent mono amplifiers, each one amplifying the mono signal of its own input. o Four / six mono amplifiers with a common mono input.

The amplifier operates now with just one input signal for all amplifiers, but preserves the

ability to control each channels volume independently. This setup is useful when distributing

signals to different zones.

o Four / six mono amplifiers with a common stereo input.

This setup is similar to the previous example but the input is now a stereo signal. The

amplifier adds both stereo channels together converting them into a mono signal.

o Two / three stereo amplifiers for two / three different stereo inputs.

Each stereo channel offers a dedicated volume control. Useful for addressing two / three

zones with two / three different stereo signals.

o Two / three stereo amplifiers for one common stereo input.

This setup is similar to the previous example but the input is now a single stereo signal which

is fed to two / three amplifiers.

o Two / three bridged amplifiers for two / three different mono inputs.

With each pair of bridged channels you obtain doubled output power with a load of at least

8.

o Two / three bridged amplifiers for a common mono input.

The equipment operates with a single input signal for two / three mono amplifiers, and allows

to independently controlling their volumes.

o Two bridged amplifiers for two different stereo inputs (only MPA4-150R).

You can obtain two zones with independent volume control and two different stereo signals,

but these stereo signals are internally converted to mono in each bridged amplifier.

o Two / three bridged amplifiers for a common stereo input.

This setup is similar to the previous example but the input is now a stereo signal. The

amplifier adds both stereo channels together converting them into a mono signal.

o One stereo amplifier and one bridged amplifier with a common stereo input (only MPA4-

150R).

Useful for facilities with a stereo amplifier dedicated to satellite speakers (high and mid

frequencies) and a bridged amplifier for a subwoofer. This multichannel amplifier features a

low-pass filter to feed the subwoofer, and high pass filters for the high and mid range speaker

systems.

o Four mono amplifiers and one bridged amplifier for one common mono input (only MPA6-

150R).

Useful for setups with four amplifiers for mid-range speakers and tweeters and an extra

(bridged) amplifier for a subwoofer. This multichannel amplifier features a low-pass filter to

operate on a subwoofer system and a high-pass filter for the mid-range speakers and

tweeters.

3. INSTALLATION

3.1. Placement and mounting

The amplifier is presented as a 2 unit high 19'' rack module. It is supplied with plastic washers in order not to damage the unit when tightening the screws. Always fix the amplifier to a 19” rack through the front ears using all corners and four screws.

For portable, mobile, or other applications where the rack assembly may be moved, we recommend supporting the rear of the amplifier using support rails. It is very important not to enclose the amplifier or expose it to extreme temperatures as it generates heat. It’s also necessary to promote the passage of fresh air through the ventilation

holes of the chassis, leaving at least one rack unit off between each device and installed above and below it in the rack frame.

If the setup has several amplifiers in the same rack or in a closed cabinet with doors, it is highly recommended to supply them forced ventilation, installing fans at the upper and lower ends. This upward air flow will help to dissipate the heat generated inside.

In order to optimize as much as possible the correct thermal dissipation of equipment installed in a closed rack, it is advisable not to place power amplifiers under other appliances, but upon these ones.

3.2. Mains connection

The amplifier operates on alternate currents, depending on the country 110-120, 220-240V 50/60Hz (see characteristics in the back of the unit). The power consumption at maximum performance is 340VA for the MPA4-150R and 510VA for the MPA6-150R. It's important that your mains installation is adequately rated to these power demands. The amplifier should have an earth connection in good conditions (earth resistance, Rg=30 or less). The environment must be dry and dustless. Do not expose the unit to rain or water splashes, and do not place liquid containers or incandescent objects like candles on top of the unit. Do not obstruct the ventilation grids with any kind of material. In case there is some type of intervention and/or connection-disconnection of the amplifier, it is most important to previously disconnect the mains power supply. There are no user or serviceable parts inside the amplifier. You should avoid that the supply cable twists with the shielded signal cables, as this could lead to unwanted hum.

In order to protect the unit from an eventual electrical overload or momentary power peaks from the internal circuits it carries a fuse. Should it ever blow up, unplug the unit from mains and replace it with an identical one. If the new fuse blows again contact immediately with our Authorized Technical Service.

CAUTION: YOU MUST NEVER USE A HIGHER VALUE FUSE.

3.3. Multi-function

Depending on the input switches on the MPA4-150R (24, 25, 26, 27, 28, 29, 30, 31) located on the rear panel, four different amplification configurations can be achieved:

MPA4-150R

- 4 mono amplifiers with following possibilities: 4 different mono inputs 1 common mono input for all 1 common stereo input for all

- 2 stereo amplifiers with following possibilities: 2 different stereo inputs 1 single stereo input for both

- 2 bridged amplifiers with following possibilities: 2 different mono inputs 1 common mono input 1 common stereo input

- Combinations between mono, stereo and bridged

On the rear panel you can also activate the high-pass and low-pass filters:

High-pass filter ON/OFF switch (31). The cut-off frequency lies at 160Hz for amplifiers 3 and 4 simultaneously or when operating in bridged mode. This filter cuts out all frequency components under 160Hz and passes the rest, being specially suited for connecting the mid-range and high frequency speakers.

Low-pass filter ON/OFF (27). Filter with 160Hz cut off frequency for amplifiers 1 and 2 together or when working in bridge mode, which eliminates audio signals with frequencies higher than 160Hz and lets through those signals with frequencies lower than 160Hz.

Combining one bridged amplifier with switched on low-pass filter together with a stereo amplifier with switched on high-pass filter turns your multichannel power amplifier into an ideal equipment for clubs and other locations with a subwoofer, mid-range speakers and tweeters.

Depending on the input switches on the MPA6-150R (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,

35) located on the rear panel, four different amplification configurations can be achieved:

MPA6-150R

- 6 mono amplifiers with following possibilities: 6 different mono inputs 1 common mono input for all 1 common stereo input for all

- 3 stereo amplifiers with following possibilities: 3 different stereo inputs 1 single stereo input for both

- 3 bridged amplifiers with following possibilities: 3 different mono inputs 1 common mono input 1 common stereo input

- Combinations between mono, stereo and bridged

On the rear panel you can also activate the high-pass and low-pass filters:

High-pass filter ON/OFF switch (30, 34). The cut-off frequency lies at 160Hz for amplifiers 3 and 4 (5 and 6) simultaneously or when operating in bridged mode. This filter cuts out all frequency components under 160Hz and passes the rest, being specially suited for connecting the mid-range and high frequency speakers.

3.4. Input connections

MPA4-150R

MPA6-150R

Signal inputs (23) are provided on Euroblock type balanced connectors (electronically balanced), with an input impedance greater than 20k and a rated sensitivity of 0dBV (1V).

The “STACK” are in parallel with the inputs and are used to supply the same "IN 1, IN 2" input signal to other amplifiers or sound systems.

Some of the connection options and the corresponding switch settings are described later in paragraph 3.5.

Depending on the option chosen, the front panel "SP" signal indicators will light up only for active channels.

3.5. Input options

OPTION MPA4-150R MPA6-150R

mono

stereo

bridged

combination

4 mono amplifiers for 4 different mono signal 4 mono amplifiers for a common mono input 4 mono amplifiers for a common stereo input 2 stereo amplifiers for 2 different stereo inputs 2 stereo amplifiers for a common stereo input 2 bridged amplifiers for 2 different mono signals 2 bridged amplifiers for a common mono signal 2 bridged amplifiers for a common stereo signal 1 bridged amplifier and 2 mono amplifiers for a common mono input 1 bridged amplifier and 1 stereo amplifier for 2 different stereo inputs 1 bridged amplifier and 1 stereo amplifier for a common stereo input

6 mono amplifiers for six different mono signal

6 mono amplifiers for a common mono input

6 mono amplifiers for a common stereo input

3 stereo amplifiers for three different stereo inputs 3 stereo amplifiers for a common stereo input

3 bridged amplifiers for three different mono signals 3 bridged amplifiers for a common mono signal

3 bridged amplifiers for a common stereo signal

1 bridged amplifier and 4 mono amplifiers for a common mono input 1 bridged amplifier and 2 stereo amplifier for three different stereo inputs 1 bridged amplifier and 2 stereo amplifiers for a common stereo input

MPA6-150R

MPA4-150R - - MPA4-150R - - MPA4-150R -

INPUT SIGNALS INPUT SELECTORS MODE ST-BR

1 2 3 4 5 6 CH1 CH2 CH3 CH4 CH5 CH6 CH1-2 CH3-4 CH5-6

1 I1 I2 I3 I4 I5 I6 IN1 IN2 IN3 IN4 IN5 IN6 ST ST ST

2 I - - - - - IN1

3 L R - - - - IN1+IN2

LINK

CH1

LINK

CH1

LINK

CH1

LINK

CH1

LINK

CH2

LINK

CH2

LINK

CH3

LINK

CH3

LINK

CH4

LINK

CH4

ST ST ST

4 L1 R1 L2 R2 L3 R3 IN1 IN2 IN3 IN4 IN5 IN6 ST ST ST

5 L R - - - - IN1 IN2

LINK

CH1

LINK

CH2

LINK

CH3

LINK

CH4

ST ST ST

6 I1 - I2 - I3 - IN1 - IN3 - IN5 - BR BR BR

7 I - - - - - IN1 -

8 L R - - - - IN1+IN2 -

9 I - - - - - IN1

LINK

CH1

LINK

CH1

LINK

CH1

LINK

CH1

LINK

CH2

LINK

CH3

LINK

CH3

LINK

CH3

- BR BR BR

LINK

CH4

BR ST ST

10 L1 R1 L2 R2 L3 R3 IN1+IN2 - IN3 IN4 IN5 IN6 BR ST ST

11 L R - - - - IN1+IN2 IN2

LINK

CH1

LINK

CH2

LINK

CH3

LINK

CH4

BR ST ST

3.6. Limiter circuit

This system is an always active protection inside the MPA R series of amplifiers. The ANTICLIP circuitry constantly analyses harmonic distortion caused by excessive signal excursion at the power amplifier's output and automatically reduces the input level in order never to reach distortion. The great convenience of such a circuit in any kind of installation has to be remarked: The clear advantage of a limiting system in front of conventional compressors is that the former does practically not alter the dynamic range, acting only when the distortion threshold is reached.

3.7. Output connections

The rear panel OUTPUTS section is provided with screw terminal blocks (21), one per channel of

amplification.

The attenuation controls and the output configurations are described later in paragraph 3.8.

The cable which connects the speakers to the amplifier should be high quality and as short and thick as possible. This is important when covering long distances; For up to 10m we recommend a cable section not smaller than 2.5mm². For longer distances we recommend 4mm².

ALWAYS USE CLASS 2 WIRING FOR THE SPEAKERS CONNECTION.

Remember that the minimum load impedance for stereo or mono amplifiers is 4. In bridged mode the impedance must be not less than 8. For a reliable operation under any circumstance connect lower load impedances than just specified.

Attention: use only the indicated terminals when using the amplifiers in bridge mode.

MPA4-150R MPA6-150R

Connect the terminal blocks securely, removing the cable cover 5÷7mm from the end.

CAUTION: The output connectors are HAZARDOUS LIVE. Be sure to avoid leaving wires exposed. This can cause short-circuit and risk of electric shock.

3.8. Output options

OPTION MPA4-150R MPA6-150R

1 mono 4 mono amplifiers 6 mono amplifiers

2 stereo 2 stereo amplifiers 3 stereo amplifiers

3 bridged 2 bridged amplifiers 3 bridged amplifiers

4 combination 1 bridged amplifier and 2 mono amplifiers

for a common mono input

5 combination 1 bridged amplifier and 1 stereo

amplifiers for 2 different stereo amplifiers

1 bridged amplifier and 4 mono amplifiers for a common mono input 1 bridged amplifier and 2 stereo amplifiers for 3 different stereo amplifiers

N. ACTIVE VOL CH 1 CH 2 CH 3 CH 4

1 CH1,2,3,4 + - + - + - + 2 CH1,2,3,4 + - + - + - + 3 CH1,3 + BRIDGED - + BRIDGED 4 CH1,3,4 + BRIDGED - + - + 5 CH1,3,4 + BRIDGED - + - + -

MPA4-150R

N. ACTIVE VOL CH 1 CH 2 CH 3 CH 4 CH 5 CH 6

1 CH1,2,3,4,5,6 + - + - + - + - + - + 2 CH1,2,3,4,5,6 + - + - + - + - + - + 3 CH1,3,5 + BRIDGED - + BRIDGED - + BRIDGED 4 CH1,3,4,5,6 + BRIDGED - + - + - + - + 5 CH1,3,4,5,6 + BRIDGED - + - + - + - + -

MPA6-150R

WARNING: The output TERMINALS, marked with this symbol are HAZARDOUS LIVE terminals. The external wiring connected to these TERMINALS must be installed by an INSTRUCTED PERSON or using readymade leads or cords.

4. OPERATION AND USAGE

4.1. Start up

To switch the unit on just push the switch labelled POWER (20) and the integrated pilot-light will light up. We highly recommend the "safe power-up sequence": First the sound sources, then mixer, equalizers and active filters and, finally, power amplifiers. Powering off should be done by following the exact reverse sequence in order to avoid any possible peaks reaching the next device, and consequently protecting the loudspeakers, which are specially sensitive to these peaks.

NOTE

: Fully disconnecting the device from mains is done unplugging the power cord from the

mains input socket (37). For this reason, it always shall remain readily operable.

4.2. Input attenuation

These are rotary trimmers located on the front panel.

MPA4-150R

MPA6-150R

These attenuators allow the connection of different mixers, an independent volume control and the connection of speakers not able to handle the amplifiers maximum output power, thus avoiding the risk of damaging them with the mixers or preamps volume control. Inside the device's packaging you will find a little plastic bag containing transparent caps, which protect the input attenuation settings from unwanted manipulation. These caps are transparent in order to let you visualize the current settings.

Once inserted, they cannot be removed with bare fingers, for this purpose, a small screwdriver is

needed.

4.3. Remote control

The rear panel of the MPA R provides one Euroblock connector (REMOTE CONTROL) per channel to remote control the volume using the incorporated "VCA" circuit. The combined usage of the rotary potentiometers located at the front panel and the remote VCA control determines the final value of the signal’s attenuation for each input channel. Therefore, a certain value can be fixed for the signal attenuation using the rotary so that the remote control via VCA will not exceed this value and vice versa, that is, the two controls are connected in series. This functionality can be useful in installations where users with little experience are in charge of volume adjustment.

MPA4-150R

MPA6-150R

4.4. Connection of the REMOTE control

As already mentioned in the introduction of this manual, the signal attenuation level for each of the input channels can be set using the following methods:

a) Using a remote potentiometer with nominal resistance between 10k and 50k. b) Using a device that generates a control voltage from 0 to 10V DC. c) Using remote relays/dry contacts.

NOTE

: it is possible to connect a maximum of 16 inputs to one control potentiometer. It is

necessary that the ground terminals of all amplifiers are connected.

The connection cables can be up to 500m long if a section of 0,5mm

is used.

Consult the available accessories at your ECLER dealer or at www.ecler.com.

4.5. Indicators

The SP signal presence indicators (2, 5, 8, 11, 14, 17) light up when the input signal reaches

approximately -40dBV.

The CLIP indicators (3, 6, 9, 12, 15, 18) light up when the output signal for the speakers is -1.5dB below the actual clipping threshold. This clipping system watches for eventual supply voltage variations, thus giving always an accurate clipping indication, regardless of mains voltage deviations. It is normal that when operating at high output power, the CLIP indicators light up in synchronisation with the low frequencies, which carry the most energy. Nevertheless, you should avoid that the CLIP indicators are lit continuously.

Thermal protection indicator “THERMAL” (1), it shines when the cooling tunnel temperature reaches 90ºC. The amplifier will automatically restart when the temperature lessens to 80ºC.

5. CLEANING

The front panel should not be cleaned with dissolvent or abrasive substances because silk-printing could be damaged. To clean it, use a soft cloth slightly wet with water and neutral liquid soap; dry it with a clean cloth. Be careful that water never gets into the amplifier through the holes of the front panel.

6. DIAGRAMS

6.1. Function list

1. Thermal protection indication

2. Input 1 Signal presence, SP

3. Channel 1 Clip indication, CLIP

4. Channel 1 volume, CH1

5. Input 2 Signal presence, SP

6. Channel 2 Clip indication, CLIP

7. Channel 2 volume, CH2

8. Input 3 Signal presence, SP

9. Channel 3 Clip indication, CLIP

10. Channel 3 volume, CH3

11. Input 4 Signal presence, SP

12. Channel 4 Clip indication, CLIP

13. Channel 4 volume, CH4

14. Input 5 Signal presence, SP

15. Channel 5 Clip indication, CLIP

16. Channel 5 volume, CH5

17. Input 6 Signal presence, SP

18. Channel 6 Clip indication, CLIP

19. Channel 6 volume, CH6

20. Power switch and pilot light, POWER

21. Output terminals

22. Screwable terminals for remote control

23. Input screwable terminals

24. Channel 1 / Channel 1+ 2, IN1/IN1+IN2

25. Channel 2 / link channel 1, IN2/LINK CH1

26. Low-pass filter switch, LP FILTER

27. Stereo / bridge channel 1 switch, 1+2

28. Channel 3 / link channel 1, IN3/LINK CH1

29. Channel 4 / link channel 2, IN4/LINK CH2

30. High-pass filter switch, HP FILTER

31. Stereo / bridge channel 3 switch, 3+4

32. Channel 5 / link channel 3, IN5/LINK CH3

33. Channel 6 / link channel 4, IN6/LINK CH4

34. High-pass filter switch, HP FILTER

35. Stereo / bridge channel 5 switch, 5+6

36. Fuse holder

37. Mains socket

6.2. Function diagram

Explicación de los Símbolos Gráficos

El símbolo del relámpago con una flecha en la punta y dentro de un triangulo equilátero, tiene el propósito de alertar al usuario de la presencia de un voltaje peligroso y sin aislar dentro del aparato, y de una magnitud tal que puede constituir riesgo de descarga eléctrica para las personas.

El símbolo de exclamación dentro de un triangulo equilátero, tiene el propósito de alertar al usuario de la presencia de instrucciones importantes sobre la operación y mantenimiento en la información que viene con el producto.

Los símbolos de relámpagos dibujados cerca de los terminales de salida se utilizan para alertar al usuario del riesgo de descargas peligrosas. Los conectores de salida que podrían plantear algún riesgo se indican con este símbolo del relámpago. No toque los terminales de salida mientras que el amplificador esté encendido. Hacer todas las conexiones con el amplificador apagado.

ADVERTENCIA: para prevenir choques eléctricos o riesgo de incendios, no exponer este equipo a la lluvia o la humedad.

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

1. Lea estas instrucciones

2. Guarde estas instrucciones

3. Preste atención a todas las advertencias

4. Siga todas las instrucciones

5. No utilice este aparato cerca del agua

6. Límpielo solamente con un paño seco

7. No bloquee ninguna abertura para ventilación. Instálelo de acuerdo con las instrucciones del fabricante

8. No lo instale cerca de fuentes de calor como radiadores, estufas u otros aparatos que produzcan calor, incluidos amplificadores.

9. No elimine el propósito de seguridad del cable de corriente polarizado o con conexión de tierra. Un cable polarizado tiene dos bornes, uno más ancho que el otro. Un enchufe con conexión a tierra, tiene dos bornes y un tercer borne conectado a tierra. Este tercer borne está previsto para su seguridad. Si el cable proporcionado no entra en su enchufe, consulte con un técnico electricista para reemplazar ese enchufe obsoleto.

10. Proteja el cable eléctrico de ser aplastado, en especial en la zona de los conectores, los receptáculos de los mismos y en el punto en el que el cable sale del aparato.

11. Utilice solamente los accesorios especificados por el fabricante.

12. Desconecte el aparato durante las tormentas eléctricas o cuando no lo vaya a usar durante periodos largos de tiempo.

13. Para cualquier reparación, póngase en contacto con un servicio técnico cualificado. La reparación es necesaria cuando el aparato no funciona con normalidad o ha sido dañado por cualquier motivo, ya sea porque el cable o el enchufe estén dañados, porque se hayan derramado líquidos o hayan caído objetos dentro del aparato, o porque el aparato haya sido expuesto a la lluvia o se haya caído.

14. Desconexión de la red: apagando el interruptor de POWER (20) todas las funciones e indicadores del amplificador se pararán, pero la completa desconexión del aparato se consigue desconectando el cable de red de su conector (37). Por esta razón, éste siempre debe tener fácil acceso.

MANUAL DE INSTRUCCIONES

1. NOTA IMPORTANTE 20

2. INTRODUCCIÓN 20

3. INSTALACIÓN 22

3.1. Ubicación y montaje 22

3.2. Conexión a red 22

3.3. Multifunción 23

3.4. Conexiones de entrada 25

3.5. Opciones de entrada 26

3.6. Circuito limitador 27

3.7. Conexiones de salida 27

3.8. Opciones de salida 28

4. OPERACIÓN Y USO 29

4.1. Puesta en funcionamiento 29

4.2. Atenuadores de entrada 29

4.3. Control remoto 30

4.4. Conexionado del control REMOTE 31

4.5. Indicadores 31

5. LIMPIEZA 31

6. DIAGRAMAS 32

6.1. Lista de funciones 32

6.2. Diagrama de funciones 33

6.3. Características técnicas 66

6.4. Diagrama de bloques 67

Todos los datos están sujetos a variación debida a tolerancias de producción. ECLER S.A. se reserva el derecho de realizar cambios o mejoras en la fabricación o diseño que pudieran afectar las especificaciones.

1. NOTA IMPORTANTE

¡Enhorabuena!. Vd. posee el resultado de un cuidadoso diseño y una esmerada fabricación. Agradecemos su confianza por haber elegido nuestra etapa de potencia MPA R. Para conseguir la máxima operatividad del aparato y su máximo rendimiento, es MUY IMPORTANTE antes de su conexión, leer detenidamente y tener muy presentes las consideraciones que en este manual se especifican. Para garantizar el óptimo funcionamiento de este aparato, recomendamos que su mantenimiento sea llevado a cabo por nuestros Servicios Técnicos autorizados.

La serie de amplificadores MPA R tiene una garantía de 3 años.

2. INTRODUCCIÓN

Las principales características del amplificador multicanal MPA4-150R / MPA6-150R son:

 4 / 6 canales de amplificación independientes, con entrada simétrica (nivel de línea).

 Control “REMOTE” independiente en cada uno de los canales de entrada que puede ser

empleado para controlar el nivel de señal correspondiente mediante, por ejemplo, un potenciómetro remoto. (Se recomienda el uso de accesorios ECLER a tal efecto). Cualquier otro dispositivo que entregue una señal 0-10V DC puede ser empleado para el ajuste del nivel de la señal de entrada. Asimismo actuadores remotos como relés o cualquier contacto seco pueden ser usados para implementar un "MUTE" remoto en cualquiera de los canales de entrada. Esto permite al usuario final el fijar de forma remota e independiente la atenuación/MUTE de la señal de entrada que será enviada al amplificador correspondiente según el estado de los conmutadores ubicados en el panel posterior de la unidad. Un único potenciómetro (o señal de control) puede actuar sobre más de uno o todos los canales de entrada mediante el cableado adecuado. (Ver información detallada en la sección

4.4).

 Conectores "STACK" en "INPUT 1, INPUT 2" para el envío de las señales a otros

amplificadores o sistemas de sonido.

 Modos de trabajo:

La MPA4-150R está formada por cuatro amplificadores de 182W/4, mientras que la MPA6150R está formada por seis amplificadores de 200W/4. Dichos canales son configurables mediante los conmutadores situados en el panel posterior, permitiendo múltiples posibilidades de trabajo:

o 4 / 6 Amplificadores mono independientes, amplificando cada uno de ellos una señal mono

de entrada diferentes.

o 4 / 6 Amplificadores mono con una entrada mono común.

El amplificador trabaja solamente con una señal de entrada pero conserva la posibilidad de

ajustar de forma independiente el nivel de cada uno de los cuatro / seis canales, es una

aplicación ideal para realizar una distribución de sonido a distintas zonas.

o 4 / 6 Amplificadores mono con una entrada estéreo común.

Aplicación idéntica a la anterior pero teniendo como entrada una fuente de sonido estéreo, el

amplificador realiza la suma de los dos canales de la fuente para convertirla en una señal

mono.

o 2 /3 Amplificadores estéreo con dos / tres entradas estéreo diferentes.

Disponiendo cada una de ellas del control de volumen de cada canal estéreo. Útil para

sonorizar dos / tres zonas con dos / tres señales estéreo diferentes.

o 2 / 3 Amplificadores estéreo con entrada estéreo común.

Aplicación idéntica a la anterior pero con la misma señal estéreo de entrada en los dos / tres

amplificadores.

o 2 / 3 Amplificadores en puente con dos / tres señales mono diferentes.

Con cada pareja de canales en puente obtendremos el doble de potencia con una

impedancia de carga mínima de 8.

o 2 / 3 Amplificadores en puente con una señal mono en común.

El equipo trabaja con una sola señal de entrada para dos / tres amplificadores mono, con

posibilidad de controlar los volúmenes de forma independiente.

o 2 Amplificadores en puente con dos entradas estéreo diferentes (sólo MPA4-150R)

Tendremos dos zonas con controles de volumen independientes con dos señales estéreo

diferentes, pero estas señales estéreo se convierten en señales mono internamente en cada

amplificador en puente.

o 2 / 3 Amplificadores en puente con una entrada estéreo común.

Aplicación idéntica a la anterior pero teniendo como entrada una fuente de sonido estéreo, el

amplificador realiza la suma de los dos canales de la fuente para convertirla en una señal

mono.

o 1 Amplificador estéreo y 1 amplificador en puente con una entrada estéreo común (sólo

MPA4-150R).

Útil para instalaciones con un amplificador estéreo con altavoces de medios-agudos y un

segundo amplificador en puente para un recinto de subgraves. Este amplificador multicanal

dispone de filtro paso bajo para alimentar el cajón de subgraves, y de filtros paso alto para

las cajas de medios y agudos.

o 4 Amplificadores mono y 1 amplificador en puente con una entrada mono común (sólo MPA6-

150R).

Útil para instalaciones donde se necesiten 4 amplificadores de una potencia determinada

(para cajas de medios y agudos) y un amplificador en puente para caja de subgraves. Este

amplificador multicanal dispone de filtro paso bajo para instalar cajón de subgraves y de

filtros paso alto para las cajas de medios y agudos.

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Ecler MPA6-150R User Manual [en, de, es, fr]

Specifications and Main Features

Frequently Asked Questions

User Manual