Formula Sound GUARDIAN CX10 User Manual Download Page 3

Play audio through a channel at the required level and trigger the priority using the “LOCAL TEST” switch. Through 
the back panel using a small flat blade screwdriver adjust the priority programme attenuation potentiometer marked 
“ATTEN” (generally music should be quiet but audible). 

Play audio through the priority input and through the back panel using a small flat blade screwdriver adjust the 
priority level potentiometer marked “LEVEL” for the maximum required system level, individual channel levels can 
then be adjusted below this level if required. 

Play audio through channels 1 

– 10 and through the front panel using a small flat blade screwdriver adjust the 

potentiometers marked 1 

– 10 fully for the required priority level on any channels where it is required to be lower 

than the system level

Mains Voltage 

The CX10 has been designed to operate on 220-240Vac, a 110-120Vac version is available on request from 
Formula Sound. 

Fuses 

Mains fuse sizes are 250mA anti surge for 220-240V operation and 500mA anti surge for 110-120V operation. 

It is 

important for safety reasons that the correct fuse sizes are always used.

 

Internal 

There is a ground/Earth lift located by the mains transformer towards the back and side of the unit. Removing this 
may be necessary in some installations. A skilled audio system specialist should determine if this is necessary, 
otherwise this should be left in the factory supplied or normal position. 

N.B. Internal settings should be undertaken by skilled personnel only

.

 

DISCONNECT THE UNIT FROM THE MAINS SUPPLY 

Remove the top case cover by removing 6 screws located at the sides of the unit and 2 screws located on the top of 
the unit. (Re-assemble in the reverse order) 

DAMAGE MAY RESULT IF THE UNIT IS CONNECTED TO THE WRONG SUPPLY VOLTAGE

 

THIS UNIT MUST BE EARTHED 

 
 
 
 
 

 
 
 
 

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