CKi Series
Power Amplifiers
CKi
SERIES
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CKiS Series
Designed to drive low impedance loads
Stereo
Bridged
Model
CKi100s
CKi200s
CKi400s
CKi800s
CKi800-2s
CKi1200s
CKi1600s
8 Ω
4 Ω
90W
2 Ω
N/A
8 Ω
4 Ω
N/A
Class
AB
AB
AB
AB
H
RMS
22V
32V
56V
64V
64V
78V
90V
Maximum
31V
60W
120W
255W
440W
420W
630W
815W
180W
350W
510W
880W
880W
1880W
2260W
175W
320W
670W
670W
940W
1130W
N/A
N/A
45V
N/A
N/A
64V
N/A
N/A
90V
870W
1130W
1440W
1740W
2260W
2880W
90V
H
110V
127V
H
power ratings are Watts per channel, both channels driven, 1kHz, 0.02% THD+N
Model
CKi100s
CKi200s
CKi400s
CKi800s
CKi800-2s
CKi1200s
CKi1600s
1/8 power
612
1/3 power
780
Rack U
Weight
Idle (120V)
.5A
1/8 Power
1.65A
3.0A
1/3 Power
2.3A
Maximum*
3.5A
6.5A
12A
2
2
2
3
3
4
4
26.63 / 12.09
29.44 / 13.37
30.44 / 13.82
50.20 / 22.80
70.65 / 32.08
70.65 / 32.08
1100
1380
.6A
4.2A
2120
2820
.7A
5.8A
8.6A
3584
4700
.7A
10.0A
4.2A
14.8A
12.1A
17.3A
22.6A
15A
1210
3600
.7A
20A
3164
5040
1.3A
1.3A
9.6A
26A
3154
6525
70.65 / 32.08
lbs / kg
10.0A
30A
* circuit breaker rating, 120V / 4 Ω
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CKiV Series
Designed specifically for 70 Volt distributed applications
Model
70.7Volt
50W
140Volt*
100W
Class
AB
AB
AB
AB
H
RMS
92V
92V
92V
92V
92V
92V
Maximum
130V
CKi100v
CKi200v
CKi400v
CKi800v
CKi1600v
CKi2400v
100W
200W
400W
800W
1200W
200W
130V
400W
130V
800W
130V
1600W
130V
2400W
H
130V
70.7Volt power rating is Watts per channel, both channels driven, 20Hz -20kHz, 0.02% THD+N
*bridged mono operation
Model
1/8 power
269
1/3 power
304
Rack U
Weight
Idle (120V)
.5A
1/8 Power
.76A
1/3 Power
1.02A
2.83A
5.1A
Maximum*
2.5A
CKi100v
CKi200v
CKi400v
CKi800v
CKi1600v
CKi2400v
2
2
2
3
4
4
25.26 / 11.47
27.20 / 12.35
30.66 / 13.92
50.20 / 22.80
70.65 / 32.08
816
932
.5A
2.2A
4.2A
1304
2540
2600
3100
1634
3263
5000
6500
.6A
3.6A
7.0A
.8A
7.0A
10.1A
17.0A
23.0A
15A
1.3A
1.3A
8.0A
30A
70.65 / 32.08
lbs / kg
10.0A
30A
* circuit breaker rating, 120V
4
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CKiX Series
Engineered for 100 Volt transformer isolated systems
Stereo
Bridged
Model
50Volt*
70.7Volt*
75W
100Volt
75W
200Volt
150W
300W
500W
800W
Class
AB
RMS
105V
105V
105V
105V
Maximum
150V
CKi150x
CKi300x
CKi500x
CKi800x
75W
150W
250W
400W
150W
250W
400W
150W
250W
400W
AB
150V
AB
150V
AB
150V
50, 70.7, and 100Volt power rating is Watts per channel, both channels driven, 40Hz -20kHz, 0.1% THD+N
*50 and 70.7Volt units are options that must be specified at time of order
Model
1/8 power
363
1/3 power
427
Rack U
Weight
Idle (240V)
.25A
1/8 Power
.57A
1/3 Power
.77A
Maximum*
1.88A
3.2A
CKi150x
CKi300x
CKi500x
CKi800x
3
3
3
3
32.00 / 14.55
35.00 / 15.91
35.00 / 15.91
555
1683
.25A
1.6A
2.1A
810
1024
.3A
2.2A
3.2A
4.4A
1195
1536
57.00 / 25.91
lbs / kg
.4A
3.5A
5.2A
7.5A
*circuit breaker rating, 240Volt
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NxCobraNet Module
Optional Module for NexSys Control and CobraNet Digital Audio
The NxCobraNet® module supports all NexSys control and monitoring functions
as well as delivering two channels of CobraNet digital audio to the amplifier on one eth-
ernet cable. Supported computer controlled NexSys functions include gain, sequential
power, and real time load monitoring.Amplifier monitoring includes input and output level
(VU), DC protect, thermal protect, IGM, clip status, power state,AC mains, heatsink tem-
perature, gain selection, ground lift status, and audio return.
The LED display allows easy in rack readout and monitoring of temperature,
gain,AC voltage, IP address, amplifier ID, as well as CobraNet bundle and channel status.
Individual indicators display fault and mute status by channel as well as ethernet link and
data indicators.
The NxCobraNet module requires no other additions to make it network ready.
The module has an RJ-45 ethernet connection that is made through a Category 5 com-
pliant Neutrik EtherCon connector to ensure a secure connection.
Both the NxCobraNet and the NxEthernet modules can be ordered with CKi
amplifiers or easily installed in the field with two screws and a ribbon cable connection.
NxEtherNet Module
Option Module for NexSys Control of CKi Amplifiers
The CrestAudio NxEthernet module is designed for clients who need the control of
NexSys but do not need the digital audio delivery that the NxCobraNet module provides.
6
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NxDSP
Optional DSP for NExSys Control and CobraNet Digital Audio
The Crest Audio NxDSP plug in board
for NxCobraNet and NxEthernet performs
various functions depending on which module
it is used with.
NxEthernet module: provides speaker
processing including limiting, equalization,
speaker alignment, delay and gain.
NxCobraNet module: in addition to
speaker processing the DSP installed in the
NxCobraNet module provides 8 channels of
CobraNet audio decoded to analog outputs
on the back of the module
Input Transformers
Optional Plug-in Input Transformers
Input isolation transformers are avail-
able for all CKi amplifiers.The plug- in module
can be specified with Sescom or Jensen isola-
tion transformers.The modules can be installed
in the amplifier if ordered with the amplifiers or
easily added in the field.
FA-CKiXFMRJ-ZZ Jensen transformers
FA-CKiXFMRS-ZZ Sescom transformers
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Crest Audio reserves the right to make improvements in manufacturing or design which may affect
specification. Crest Audio specification literature is available in electronic form to qualified users.
Contact Crest Audio Inc. for more information.
Crest Audio Inc.
16-00 Pollitt Dr. Fair Lawn NJ 07410 USA
TEL: 201.909.8700 FAX: 201.909.8744
©2004 Crest Audio Inc.
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