
POWER SWITCH: Activates the unit.
MONITOR OUT: This socket should be used to connect an unpowered
monitor when the AMP MODE SWITCH is set to MAIN/MONITOR. Total
monitor impedance must not be lower than 4 Ohms.
BRIDGED: Socket for connecting speakers when the AMP MODE SWITCH is
set to BRIDGED MODE. Total impedance should not be less than 8 Ohms.
MAIN OUT: Sockets for connecting main front of house speakers.
Minimimum impedance 4 Ohms each side.
30
34
31
0
!!
CAUTION
RISK OF ELECTRIC SHOCK - DO NOT OPEN
Warning
To reduce the risk of fire or electric shock do not
expose this appliance to rain or moisture.
Caution
F
or continued protection against risk of fire replace
only with same type and rated fuse
Power
BRIDGED
MONITOR
MAIN OUT
Concept
CD640 Features - REAR PANEL
FEATURES CD640
34
35
36
37
33
AMP MODE SELECTOR SWITCH: This selects the functions of the two
power amp modules within the unit, whether bridged together as one mono
amp (set switch to ‘Bridge’), running in dual mono mode, as two separate
front-of-house amps (set switch to ‘Main-Main’), or running as two
independent amps, one for the front-of-house mix, and one for the monitors
(set switch to ‘Main-Mon’).
PHANTOM POWER: 48V phantom power, provided for condenser mics. and
active DI boxes. It is globally switched to all of the mic. inputs, when the
switch is set to ‘48V’. It is vital to ensure that phantom power is switched ‘Off’
when using passive mics., DI boxes, etc., in the mic. inputs, otherwise the
source may be damaged. All connections should be made before switching
phantom power on.
MASTER VOLUME: Determines the overall level sent to the monitor out.
32
32
35
33
8
CD640 CD850S Manual