p. 8
installation
2
Make certain that there
is enough space
around the front and
rear of the amplifier to
allow the heated air to
escape. When mount-
ing in a rack, try to
avoid using doors or
covers on the front and
rear of the enclosure;
the exhaust air must
not be impeded
suggestion
In racks with closed
backs allow at least
one standard-rack-
space opening for
every four amps.
INSTALLATION
CPX professional power amplifiers are designed for durability in com-
mercial installations and provide the quality performance required in
studio and home applications. They are 2-rack-space units of 16" (406
mm) depth designed to mount in a standard 19" rack. Rear mounting
ears are provided for additional support. The minimum rack depth
required from the mounting surface is 17" (432 mm) to allow adequate
connector clearance.
cooling and ventilation
CPX amplifiers use a forced air cooling system to maintain a low, even
operating temperature.
Air is drawn in by a DC fan on the rear panel, flows through the cool-
ing fins and then exhausts through the front panel vent.
Heatsink temperature is monitored and controls the variable speed
fan. Fan speed increases only as required, keeping fan noise to a min-
imum.
If the heatsink surpasses it’s maximum allowed temperature, the ther-
mal protection circuit will activate and open the output relays allowing
the amplifier to cool to a safe temperature. Thermal protect activation
only occurs under extreme thermal conditions and is not part of nor-
mal operation.
CPX owner’s manual
