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3

SR703 CONTRACTOR AMPLIFIER

English

1.  Read  these  instructions  before  operating  this

apparatus.

2.  Keep these instructions for future reference.

3.  Heed all warnings to ensure safe operation.

4.  Follow all instructions provided in this document.

5.  Do not use this apparatus near water or in locations 

where condensation may occur.

6.  Clean only with dry cloth. Do not use aerosol or liquid 

cleaners. Unplug this apparatus before cleaning.

7.  Do not block any of the 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 

.

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 is provided for your safety. If
the provided plug does not  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 plug, convenience receptacles,
and the point where they exit from the apparatus.

11.  Only  use  attachments/accessories 

 by  the 

manufacturer.

12. Use  only  with  a  cart,  stand,  tripod,  bracket,  or

table 

  by  the  manufacturer,  or  sold  with

the  apparatus.  When  a  cart  is  used,  use  caution 
when  moving  the  cart/apparatus
combination to avoid injury from tip-
over.

13. Unplug this apparatus during lighting 

storms  or  when  unused  for  long 
periods of time.

14. Refer  all  servicing  to

service    personnel.

Servicing is required when the apparatus has been 
damaged in any way, such 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.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK)

NO USER SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

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’
magnitude to constitute a risk of electric shock to persons.

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

WARNING:

To reduce the risk of 

 or electric shock, do 

not expose this apparatus to rain or moisture.

CAUTION:

Use of controls or adjustments or performance

of  procedures  other  than  those 

  may  result  in

hazardous radiation exposure.

The apparatus shall not be exposed to dripping or splashing and that no objects

with liquids, such as vases,

shall be placed on the apparatus. The MAINS plug is used as the disconnect device, the disconnect device shall
remain readily operable. 

Warning

: the user shall not place this apparatus in the

area during the operation so that the mains switch

can be easily accessible. 

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Summary of Contents for SR703

Page 1: ...User s Manual Manual del Usuario Contractor Power Amplifier Amplificador de Potencia Para Contratista SR703...

Page 2: ...CIONES 10 ACERCA DE ESTE MANUAL 10 PANEL FRONTAL 10 PANEL POSTERIOR 11 CONEXIONES DE ENTRADA 12 CONEXIONES DE SALIDA 12 ESPECIFICACIONES 14 DIMENSIONS DIMENSIONES 15 Asystems reserves the right to alt...

Page 3: ...paratus during lighting storms or when unused for long periods of time 14 Refer all servicing to service personnel Servicing is required when the apparatus has been damaged in any way such as power su...

Page 4: ...er is in place over the output terminals and do not touch any exposed speaker wiring while the amplifier is operating ABOUT THIS MANUAL Please be reminded that a power amplifier is a high current high...

Page 5: ...ther SR or other amplifier 9 Stereo Parallel Bridge Switch In Stereo operation two separate signals are treated separately by channels 1 and 2 of the amplifiers In Parallel operation one signal is tre...

Page 6: ...f before you change any output connections Loose screw terminals insert wire connectors under screws Tighten screw terminals Direct Low Impedance Output connection for SR703 bridge mono mode Output co...

Page 7: ...refer to the Rear Panel section on page 5 Low Impedance and Distributed Speakers If your application calls for connection of an 8 ohm speaker and a distributed line to the same amplifier channel the S...

Page 8: ...mpedance Balanced Unbalanced 20k 10k ohm Damping Factor 200 direct output S N Ratio Less than 100dB below rated output 20Hz 20kHz Protection Circuits Output offset voitage protection Heat sink overhea...

Page 9: ...9 SR703 AMPLIFICADOR DE POTENCIA PARA CONTRATISTA Espa ol...

Page 10: ...os a la salida Para evitar descargas el ctricas aseg rate de que la cubierta este encima de las terminales de salida y no toques ning n cable de altavoz que este expuesto mientras el amplificador este...

Page 11: ...amplificador 9 Selector Est reo Paralelo Bridge En operaci n est reo dos se ales separadas ser n transmitidas por los canales 1 y 2 de los amplificadores En operaci n en Paralelo una se al es tratada...

Page 12: ...ado antes de cambiar cualquier conexi n de salida Liberal los tornillos de las terminales inserta las conexiones de los cables debajo de los tornillos Aprieta firmemente las terminales de los tornillo...

Page 13: ...or favor refi rete a la descripci n previa del Panel Trasero Altavoces Distribuidos y de Baja Impedancia en los Amplificadores SR703 SI tus aplicaciones necesitan la conexi n de altavoces de 8 ohm y u...

Page 14: ...esbalanceada 20k 10k ohm Factor Damping 200 direct output Relaci n S R Menor a 100dB debajo de la salida medida 20Hz 20kHz Circuitos de Protecci n Protecci n de offset de voltaje de salida Protecci n...

Page 15: ...15 SR703 CONTRACTOR AMPLIFIER Appendix DIMENSIONS DIMENSIONES Measurements are shown in mm inches Todas las medidas est n mostradas en mm pulgadas 132 5 2 480 19...

Page 16: ...www asystems sys com...

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