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Upon unpacking, inspect the amplifier. If you find any damage, notify your
supplier immediately. Only the consignee may institute a claim with the
carrier for damage incurred during shipping. Be sure to save the carton
and all packing materials. Should you ever need to ship the unit back to
Crest Audio, one of its offices, service centers or the supplier, use only the
original factory packing. If the shipping carton is unavailable, contact Crest
Audio to obtain a replacement.
The CM
Series power amplifiers will mount in standard 19" racks.
The CM Series power amplifiers use a forced-air cooling system to maintain
a low, even operating temperature. Air is drawn into the amplifier via a
fan located in the front of the unit and courses through the cooling fins of
the heat sink. The air then exits through the sides of the chassis. If the heat
sinks get too hot‚ a sensor circuit will activate the protective muting system
to protect the amplifier. When the internal temperature reaches a safe level‚
the amplifier will automatically return to normal operation. It is important
that both the front and the side of the unit have adequate space to allow
the cooling air to enter and escape. If the amp is rack mounted, do not use
doors or covers on the front of the rack; the intake air must flow without
resistance. If you are using racks with closed backs, make sure that there
is one (1) standard rack space opening for every three mounted power
amplifiers. If not rack mounted‚ allow 6" of clearance on all sides.