Twin DC Fuse Receptacles
Located on the rear panel are two DC fuse receptacles. Access each DC fuse by turning the cap counter-clockwise
with a screwdriver. The value of the fuse is 35 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 fans are temperature sensitive and will only switch on when the temperature of the DCM500 had reached a
pre-determined range. The fan will stay on and only switch off again once the temperature of the DCM500 has fallen
below a pre-determined level. If the DCM500 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 DCM500.
Fuse Sizes
Mains, 240 VAC: 10 Amperes Slow Blow.
XLR Audio Input and Parallel Output
The input to the DCM500 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
