Arrel Audio CL-125/4 User Manual Download Page 6

ARREL  Audio 

 

CL-125/4 User Manual, Issue 0.1

 

Page 6 

 

CL-125/4 Front Panel Controls and Operations 

POWER SWITCH 

 
Press  the  illuminated  power-on  button  to  turn  on  the  CL-125/4  (red  light  on).  To  turn  off 
press again the power on button (red LED off) (Fig. 1).

  

 

 

Fig. 2 CL-125/4 Power on switch

 

INPUT SOURCE SELECTION 

The  CL-125/4

 

input  stage  is  based  on  a  differential 

amplifier  so  it  is  “electronically 

balanced”. 
If the Line-In 1/4" jack is not inserted the mic input is activated, the insertion of the Line In 
jack  disconnects  the  mic  input  (Fig.  1).  Due  to  its  very  high  dynamic  range,  the  ARREL 
Audio CL-125/4 does not require any input PAD switch. 

PHANTOM-POWER SWITCH 

Press  the  button  to  activate  the  +48  V  Phantom  Power  (red  LED  on).  To  deselect  the 
Phantom Power press again the button (red LED off) (Fig. 1).

  

A special circuit allows the connection of microphones even if the unit is turned on with the 
Phantom Power activated. 
 

 

 

Fig. 2 CL-125/4 Front panel

 

 

 

Summary of Contents for CL-125/4

Page 1: ...CL 125 4 Quad Mic Line Preamplifier User Manual Issue 0 1...

Page 2: ...ectrical storms Do not place the instrument in an unstable position where it might accidentally fall over Before moving the instrument remove all connected cables When setting up the product make sure...

Page 3: ...ystems and related documentation In any case we reserve the right to change the specifications without notice but in the respect to the current legislation Disclaimer The information contained in this...

Page 4: ...F CONTENTS 4 INTRODUCTION 5 Housing 5 CL 125 4 Front Panel Controls and Operations 6 Input Source selection 6 Phantom Power switch 6 Gain Control knob 7 LO CUT switch 7 HI CUT switch 7 Phase switch 7...

Page 5: ...ept input signals up to 20 dBu a special protection circuit limits the input level at 12 dBu in order to prevent any damage The EL 111 extended input dynamic range avoids the necessity of the input pa...

Page 6: ...o it is electronically balanced If the Line In 1 4 jack is not inserted the mic input is activated the insertion of the Line In jack disconnects the mic input Fig 1 Due to its very high dynamic range...

Page 7: ...The filter cut off frequency is 80 Hz 12 dB Oct Press again to switch off the filter LED HI CUT SWITCH Push the button to activate the low pass filter red LED on The filter cut off frequency is 8 KHz...

Page 8: ...ARREL Audio CL 125 4 User Manual Issue 0 1 Page 8 APPENDIX A Connections FIG 1 CL 125 4 Connections...

Page 9: ...ARREL Audio CL 125 4 User Manual Issue 0 1 Page 9 APPENDIX B Front Panel FIG 3 CL 125 4 Front Panel...

Page 10: ...ARREL Audio CL 125 4 User Manual Issue 0 1 Page 10 APPENDIX C Back Panel Fig 4 CL 125 4 Back Panel...

Page 11: ...r 80 Hz 12 dB Oct High Cut Filter 8 KHz 12 dB Oct Output Electronically Balanced Level 4 dBu Max 28 dBu Front Panel Controls Gain rotary knob continuous control 48V Phantom Power button Low Cut button...

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