C45 User Guide Version 1.0 5
Warning: To reduce the risk of fire or electric shock, do not expose this apparatus to rain
or moisture. To avoid electrical shock do not remove covers. Refer all servicing
to qualified personnel. Do not use this unit if the electrical power cord is frayed
or broken.
The power supply cords should be routed so that they are not likely to be walked on or pinched by
items placed upon or against them, paying particular attention to cords and plugs and the point
where they exit from the appliance.
Always operate the unit with the AC ground wire connected to the electrical system ground.
Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.
Do not remove the lid. Removing the lid will expose you to potentially dangerous voltages. There are
no user serviceable parts inside.
Mechanical
To ensure that this equipment performs to specification, it should be mounted in a suitable rack or
enclosure as described below. Like all high power amplifiers, it should be kept away from other
equipment which is sensitive to magnetic fields. Also, this amplifier may suffer a substantial reduction
in performance if it is subjected to, or mounted close to equipment which radiates high RF fields.
When mounting the amplifier in a rack or enclosure, ensure that:
1. The rear of the unit is adequately supported. The brackets which are supplied fit standard 19
inch (483mm) rack mounting systems. The front panel is not capable of supporting the
front panel is not capable of supporting the unit on its own.
2. There is adequate ventilation. The cooling fans suck cool air in through the front and blow
hot air out at the rear of the unit through the ventilating grills. If the air is not allowed to
escape, overheating will occur. Take care when mounting other equipment in the same
rack.
3. The rack unit has a separate earth connection (technical earth).
Also see maintenance section page 9.
EMC (RF Emissions)
The high frequency resonant converters in the C Series amplifiers have been designed to have very
low radio frequency (RF) emissions, which can cause interference with other equipment. In order for
this to be optimised, the amplifier should be mounted in a metal rack enclosure, which should have a
separate (technical) Earth. Alternatively a separate earth should be attached to the amplifier at the
rear rack mounting bracket.
General Information
Your C45 power amplifier utilises a proprietary designed progressive switching rail output, which
enables the extremely high voltage swings and peak power without compromising the sonic quality.
Fan speed is varied as required to keep the amplifier within its temperature limits. Signal limiters are
included to protect speakers from clipped signals. The amplifiers include full DC and short circuit
protection to ensure trouble-free service even in ‘harsher’ environments.
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