Peavey CKS Series - Manual (Page 6)

Page 4 Crest Audio CK Power Processing Amplifiers
Rear Panel.
Module Bays & Modules.
The rear panel of CK Power Processing amplifiers provides three
bays (Input, Network and Output/Power) configured to accept inter-
changeable plug-in modules. Your amplifier may have been factory-
configured with some of the optional modules. In this case, info on
the relevant modules will be enclosed in the amplifier box, or in a
separate binder. If all required information is not included, please
call Crest Audio’s Customer Service department or your local Crest
Audio representative.
About CC Modules and NC Modules.
CC modules fit into the Power/Output or Input module bays in the
rear panel of CK Power Processing amplifiers. These "basic" analog
modules are non-programmable and non-NexSys
® compatible; only
the STO function can be controlled (through hardwiring).
NC Modules can be controlled, programmed and/or monitored. They
fit into the rear panel of the amplifiers. NC Input Modules can be
controlled and/or programmed over the NexSys network or via the
N-Coder (Hand-Held) or N-Coder/PC software. (NexSys is Crest
Audio’s hardware and software package that offers network connec-
tion of Crest Audio amplifiers and associated devices.). NC Input
and NC Output/Power Modules are NexSys-compatible. Using
NexSys with the appropriate NC Network Module, NC Input and
Output/Power Modules can be controlled, programmed and/or moni-
tored remotely. NexSys also offers a number of diagnostic facilities.
On the NC Input Modules, the individual channel attenuators offer
manual level adjustment and removable knobs for additional securi-
ty. Except for the STO feature, NC Modules are “tamper-proof” in
that there are no user-accessible setup controls.
9. Circuit Breaker.
A re-settable, protective AC circuit breaker is located at the upper
left of the amplifier rear panel. Two and three rack space amplifiers
have a push-type breaker fitted, while four rack space units have a
throw-switch style breaker. If the breaker has tripped, push it back in
(or, in the case of four rack space units, flip the breaker up) to return
the amplifier to operating condition. If the breaker trips repeatedly,
the amplifier needs servicing.
10. IEC Power Connector with removable Power Cord or
Captive Power Cord.
On two rack space amplifiers, a standard IEC power connector is
located at the lower left corner of the amplifier rear panel. An AC
mains cord having an appropriate AC plug for the intended operating
voltage is included. Three and four rack space units have a captive
power cord.
11. Power/Output Bay.
All Power/Output modules (CC-STL module is shipped standard)
provide a ground lift jumper, barrier strip output connectors, and
connections for sequential turn-on /off (STO) activation.
A barrier strip is provided for connection of loudspeakers with bare
wire or spade lug connectors. A signal ground lift jumper permits the
audio ground to be lifted from the chassis ground. For more informa-
tion see the sections on Signal Ground Lift Jumper, Module
Removal, and Sequential Turn-On/Turn-Off.
12. Network Bay.
The CC-BLK (blank panel) comes standard with all amplifiers. See
the section on Replacing or Installing a Network Module for more
information.
13. Input Bay.
CK Power Processing amplifiers come standard with a CC-IPB Input
module. Barrier strip input connectors and individual channel rotary
attenuators are provided. All Input modules have an internal voltage
gain/input sensitivity jumper that is factory-set for X40 gain. See the
sections on Input module Connections and Removing or Replacing
an Input module for more information.
Operation.
Connecting Power/Circuit Size Requirements.
CK Power Processing amplifier power requirements are rated at
“idle”, 1/8th power (“typical” music conditions), 1/3rd power, and
maximum rated power. The maximum power current draw rating is
limited by the amplifier's circuit breaker. Consult the specifications
at the end of this manual 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 connecting 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.
CK Power Processing amplifiers use a forced-air cooling system to
maintain a low, even operating temperature. Drawn by a continuous-
ly-variable-speed fan mounted behind the front panel, air enters
through the front grill and courses through the cooling fins of the
heat sink, (which dissipates power transistor heat), before exiting
through the side panel ports. The fan will remain inactive until oper-
ating temperature rises above 45° C. Make sure that there is enough
space around the front of the amplifier 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 periodi-
cally replaced. (No tools are required for filter removal).
Com
Out
In
+8 to +18VDC
20 mA
Model
CC-STL
NEC
CLASS 2 ONLY
CLASS 2 WIRING MAY BE USED
Output
A
B
+
+
–
–
Signal
Ground
Lift
Jumper
Model
CC-BLK
Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
Model
Name
CKS 100
CKS 200
CKS 400
CKS 800
CKS 800-2
CKS 1200-2
CKS 1600-2
Output Power
@8 Ω /Ch.
50W
100W
200W
400W
400W
600W
800W
Model
Name
CKV 100
CKV 200
CKV 400
CKV 800
CKV 1600
CKV 2400
Output Power
@70.7V
50W
100W
200W
400W
800W
1200W
LISTED 8B42
COMMERCIAL POWER
AMPLIFIER
120V~60 Hz 15A
Input A Input B
+ + – –
7
8
9
5
2
0
1
3
4 6
10
7
8
9
5
2
0
1
3
4 6
10
Model
CC-IPB
Level
B
Level
A
11 12 13 10 9
Rear
View