Input; Power; Output - Crest Audio CKI Owner's Manual

5
Unless otherwise specified when ordered, CKi Series amplifiers are shipped
from the factory set to one of following voltage options:
Option 1
US domestic
Nominal 120Vac 60Hz for rated power output (safe operating range
100 - 132Vac )
Option 2
Export
Nominal 230Vac 50Hz for rated power output (safe operating range
200 - 264Vac )
All CKi series amplifiers use 3-Pin Phoenix connectors for attaching input sig-
nals. Each connector is configured (from left to right) positive, negative,
ground.
Input Phoenix Connectors
+ +
Direct
Direct (speaker) outputs are connected to CKi series amplifiers via the
rear-panel terminal strips. Be sure to properly calculate the total
impedance of all speakers connected to a direct output and to not
exceed the minimum impedance rating of your CKi amplifier
Constant Voltage
For CKi-v and CKi-x models constant voltage (distributed) lines are
connected to via the same rear-panel terminal strips. Be sure to prop-
erly calculate the total wattage demand of each constant voltage line
and to not exceed the maximum output rating of your CKi amplifier.
Output Barrier Strip
+
+ +
See — the wiring diagrams on the next two pages for more information on
connecting your CKi amplifier.
+
In situations where an
UNBALANCED sig-
nal is fed to the amp,
it's important to ground
the unused input. If the
inverting (-) input of an
amp channel is left float-
ing, the gain will drop
by 3 dB.
a
Very high current is
available at the outputs.
Please connect your
output cable to the +
and - terminals of each
section precisely as
shown.