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3

TECHNICAL SPECIFICATION

 

 
 

 

 

 

 

 

 

 

 

 

 

 

   MC450 

 

     MC650 

 

 

MC750 

Output power (Watts RMS) per channel 
 

 

 

 

 

8 ohms @ 1 kHz  

                 250 

    

         350 

    

     

   425 

 

 

 

 

 

4 ohms @ 1 kHz  

                 450 

 

         650 

 

    

   750 

 

 

 

 

 

2 ohms @ 1 kHz  

                 675 

 

         950 

 

    

 1200 

 
Mono Bridged 

8 ohms @ 1 kHz                           900 

 

       1300 

 

 

  1500 

 

 

 

 

 

4 ohms @ 1 kHz  

 

     1350 

 

       TBD 

 

 

  2300 

THD @ rated power 4 ohms  1 kHz 

 

    <0.005%   

       <0.005%              

<0.005% 

 

 

 

 

 

 

 

 

  20Hz-20 kHz 

     <0.03% 

 

        <0.03%   

   

<0.03% 

Input CMRR   

 

 

       

 

 

      >90dB 

 

         >90dB   

   

 >90dB 

Hum & Noise  

 

 

 

 

 

       

     -105dB 

 

        -105dB   

   

-105dB 

Sensitivity (drives full output into 4 ohms)    

+5dBm signal               +6dBm signal             +7dBm signal 

Damping Factor 1 kHz,  8 ohms 

 

 

      >400 

 

          >400   

    

 >400 

Frequency response   

      

 

      

20Hz-20kHz +0/-0.5dB    20Hz-20kHz +0/-0.5dB    20Hz-20kHz  +0/-0.5dB 

Input impedance (actively balanced) 

 

  10k ohms 

 

      10k ohms  

         10k 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 equipment is CE marked both on the apparatus and the packaging. A product 
"Declaration of Conformity" statement and information regarding auxiliary apparatus and specifications 
required to meet conformity is available on request from our Customer Service Department on: 
 

 

+44 (0) 1404 44633 

 
This  amplifier  will  only  operate  to  its  very  high  specification  if  it  is  installed  and  operated  as 
described in this manual. 

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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