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CONTENTS 

 
 
 

 

 

 

 

TECHNICAL SPECIFICATION 

 

 

 

 

 

 

 

 

 

 

 

INTRODUCTION  

 

 

 

 

 

  

 

 

 
 

 

 

 

INSTALLATION   

 

Electrical 

 

   

 

  

 

 

 

 

 

 

 

 

     

 

 

Mechanical   

   

  

 

 

 
 

 

 

 

CONNECTIONS   

 

Inputs  

 

    

 

 

 

 

 

 

 

 

 

 

     

 

 

Outputs 

 

   

 

   

 

 

 

 

 

 

 

 

     

 

 

Rear panel switches    

 

 

 

 
 

 

 

 

 

 

OPERATION 

 

 

Switching on 

   

   

 

 

 

 

 

 

 

 

 

     

 

 

Level controls 

   

   

 

 

 

 

 

 

 

 

 

     

 

 

Mute switches 

   

   

 

 

 

 

 

 

 

 

 

     

 

 

Link switch   

   

 

 

 

 

 

 

 

 

 

 

     

 

 

Level indicator 

     

 

 

 

 

 

 

 

 

 

 

     

 

 

Limiters 

 

   

   

 

 

 

 

 

 

 

 

 

     

 

 

Temperature control 

   

 

 

 

 

 

 

 

 

 

     

 

 

Fault indicators 

   

 

 

 

 

 

 

 

 

 

 

     

 

 

2 ohm LED   

   

 

 

 

 
 

 

 

 

INTERNAL CONFIGURATION SWITCHES 

   

 

 

 

 

 
 

 

 

 

FAULTS/FUSES   

 

 

 

 

   

 

 

 

 
 

 

 

 

REMOTE CONTROL OPTION 

 

 

 

 

 

 

 
 

 

 

 

REMOTE CONTROL SET-UP INSTRUCTIONS   

 

 

         10

Summary of Contents for MC450

Page 1: ...MC450 MC650 MC750 OPERATING INSTRUCTIONS MC 2 AUDIO Ltd Units 6 7 Kingsgate Heathpark Industrial Estate HONITON Devon EX14 1YG England Tel 0 1404 44633 Fax 0 1404 44660 www mc2 audio co uk ...

Page 2: ...Inputs 5 Outputs 5 Rear panel switches 6 OPERATION Switching on 6 Level controls 6 Mute switches 6 Link switch 6 Level indicator 7 Limiters 7 Temperature control 7 Fault indicators 8 2 ohm LED 8 INTERNAL CONFIGURATION SWITCHES 8 FAULTS FUSES 8 REMOTE CONTROL OPTION 9 REMOTE CONTROL SET UP INSTRUCTIONS 10 ...

Page 3: ... ohms Dimensions mm all 2U 88x482x381 88x480x410 88x480x410 Weight 20 4 kgs 22 kgs 22 kgs Power requirement 230 VAC 230 VAC 230 VAC 7 0 amps max 9 0 amps max 10 0 amps max or 120 VAC 120 VAC 120 VAC 14 0 amps max 18 0 amps max 20 0 amps max Product compliance to EC Directives This product conforms to the relevant Directives Regulations and Standards for electronic and associated apparatus The equi...

Page 4: ...or safety reasons THE EARTH LEAD SHOULD NOT BE DISCONNECTED IN ANY CIRCUMSTANCE If ground loops are encountered consult the section on input connections later in this manual TO PREVENT THE LIKELIHOOD OF SHOCK OR FIRE HAZARD DO NOT EXPOSE THE UNIT TO RAIN OR MOISTURE TO AVOID ELECTRICAL SHOCK DO NOT REMOVE COVERS REFER ALL SERVICING TO QUALIFIED PERSONNEL INSTALLATION MECHANICAL To ensure that this...

Page 5: ...N1 is connected directly to the chassis mains earth If ground loops mains hum are encountered remove the screen connection from the other end of the cable and leave it open circuit If problems persist consult your dealer supplier DO NOT TAMPER WITH OR ALTER ANY GROUND EARTH CONNECTIONS INSIDE THE AMPLIFIER BRIDGED OPERATION In Bridged mode input A is fed to both channels Channel B will be out of p...

Page 6: ...et PANEL CONTROLS AND INDICATORS Level controls These are continuous rotary encoders which provide fine adjustment 3 turns from min to max When adjusted the level indicators change to level control position indicators and thus the height of the LED column shows the level position After a second or so the LED column changes back to monitor the signal level This function can be changed internally vi...

Page 7: ...evel controls are manually turned back up or until the amplifier is switched off NOTE All levels are referenced to the clipping point of the amplifier and not an actual output voltage or power level If the mains power drops or increases then the limit threshold will also change thus maintaining maximum output level Temperature Control If the heat sinks get excessively hot the controller will autom...

Page 8: ...columns will always show the signal level and will not change to show the level control position when the level controls are adjusted Sw 4 5 These select the threshold level as follows Sw4 Sw5 ON ON Just below clipping point ON OFF 1dB below clipping point OFF ON 2dB below clipping point OFF OFF 3dB below clipping point Sw 6 Sw 7 operate together they determine the operating mode and release time ...

Page 9: ...gether and controlled all at the same time within that group The front panel controls on the amplifiers can be locked out so that they can only be controlled from the computer This allows the system to be set up to the client s requirements and then made secure against manual interference Two levels of security are available on the management control system through the use of passwords which permi...

Page 10: ...either end of the cable and connected as follows PIN 2 hot positive PIN 3 cold PIN 5 screen Configuring the PC 1 Launch Amplifier Explorer program can be downloaded from www mc2 mc2 audio co uk 2 Click on the Tools menu and select Serial link setup Then SET OPERATING SYSTEM e g WIN98 SET COM PORT NUMBER SET PORT ADDRESS This happens automatically Set up is now complete Each amplifier has its own i...

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