DC Fuse Receptacle
Located on the rear panel is the DC fuse receptacle. Access the DC fuse by turning the cap counter-clockwise with a
screwdriver. The value of the fuse is 10 Amps. Please ensure that the AC power switch is in the ‘off’ position
and that the mains power cord is disconnected before attempting to check or replace this fuse
Cooling Fan (Air Intake)
The cooling fan is temperature sensitive and will only switch on when the temperature of the DCM120 had reached a pre-
determined range. The fan will stay on and only switch off again once the temperature of the DCM120 has fallen below
a pre-determined level. If the DCM120 is operating continually at conservative levels and proper load conditions, it is
possible that the cooling fan will not switch on at any time during normal operation. When operating, the fan works with
air flow from the front to the rear of the DCM120.
Fuse Sizes
Mains, 240VAC: 4 Amperes Slow Blow.
XLR Audio Input and Parallel Output
The input to the DCM120 is transformer balanced @ 10K ohms. When signal is connected to one XLR, the other
XLR becomes a line level output allowing the input signal to be distributed (split) to other amplifiers. In some
projects, the same input may be looped through to multiple amplifiers using this method. Up to 6 amplifiers can be
looped together without any noticeable loss in level. A distribution amplifier should be used when more than 6
amplifiers need to be looped.
The XLR’s are wired as follows: Pin 1: Shield. Pin 2: Hot, +, Positive. Pin 3: Cold, -, Negative