Owner`s manual

Installation
Make certain that there
is enough space around
the front and rear of the
amplifier to allow the
heated air to escape.
suggestion: In racks
with closed backs
allow at least one
standard-rack-space
opening for every four
amps.
a
Always turn off and
disconnect the amplifier
from mains voltage
before making audio
connections. Also, as an
extra precaution, turn
the attenuators down
during power-up.
a
+
Ci Power Processing amplifiers are 2 rack space units of 17 1/8” (437mm) depth
that mount in a standard 19-inch rack. On all amplifiers, four front panel-mount-
ing holes are provided. Rear mounting ears are also provided on all amplifiers for
additional support, which is essential in non-permanent installations like mobile
or touring sound systems, and recommended for permanent installations as well.
(Distance from the back of the front rack ear to the center of the rear mounting ear
holes is 16 5/8” / 422mm) Because of the cables and connectors on the rear panel,
a right-angle or offset screwdriver or hex key will make it easier to fasten the rear
mounting ears to the rails. Dimension drawings are included on page 4.
Requirements And Considerations
Circuit Size Requirements
Ci Power Processing amplifier power requirements are rated at “idle,” 1/8th power
(“typical” music conditions), 1/3rd power, and maximum rated power. The maxi-
mum power current draw rating is limited by the amplifier’s circuit breaker. Consult
Appendix A for the current that each amplifier will demand. AC mains voltage must
be the same as that indicated on the rear of the amplifier. Damage caused by con
-
necting the amplifier to improper AC voltage is not covered by any warranty.
Note: Always turn off and disconnect the amplifier from the mains voltage before
making audio connections. If possible, as an extra precaution, have the attenuators
turned down during power-up.
Cooling Requirements
Ci Power Processing amplifiers use a forced-air cooling system to maintain a low,
even operating temperature. Air drawn by a fan mounted behind the front panel
enters through the front grill and cools the amplifier’s power transistors. Heated
exhaust air exits through the side panel ports. The fan will remain inactive until the
unit is “Active”. Make sure that there is enough space around the front of the ampli
-
fier to allow air to enter, and around the sides to allow the heated air to exit. See
page 4 for intake and exhaust locations.
Note: If the amplifier is rack-mounted, do not use doors or covers on the front or
rear without pressurizing the rack. Whatever type of rack you are using, make sure
that heated air can escape freely, and that there is no resistance to the intake of
cool air through the front grill. Intake and exhaust air must flow without resistance.
Ensure that fan filters are regularly cleaned and periodically replaced. (No tools are
required for filter removal)
Thermal Emissions
System cooling needs must be considered before installation, and the system
installer/designer should specify appropriate countermeasures, such as ventilation,
air conditioning, etc. Refer to Appendix ??? at the back of this manual for specific
thermal emissions figures.