Crest Audio CKI - Technical Specifications

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Specifications
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CKi Series S Models
All power measurements made at 120 VAC.2 Ohm sine wave power is time-limited by magnetic circuit breaker and internal protection circuit.
CKi 100S CKi 200S CKi 400S CKi 800S CKi 800-2S CKi 1200S CKi 1600S
Stereo Power per channel
(both channels driven) 2Ω
N/A N/A N/A N/A 800W 1100W 1100W
4Ω
75W 150W 300W 600W 600W 900W 1100W
8Ω
50W 100W 200W 400W 400W 600W 800W
Bridge Power 4Ω
N/A N/A N/A N/A 1600 2200 2800
8Ω
100 200 400 800 800 1800 2200
Minimum Load Impedance
Maximum output RMS
Voltage Swing
22V 32V 45V 64V 64V 78V 90V
Frequency Response 1W @ 8Ω
Power Bandwidth @
rated 4Ω power
Damping Factor (8Ω)
300:1 300:1 300:1 400:1 400:1 400:1 400:1
Input cmrr
>60dB
Input sensitivity 4Ω rated
output power (40x)
0.5V 0.70V 1.0V 1.41V 1.41V 1.73V 1.87V
Input sensitivity 4Ω rated
output power (20x)
1.0V 1.41V 2.0V 2.82V 2.82V 3.46V 3.74V
Input impedance
Hum and noise “A” weighted,
rated power @ 8Ω
105dB,A-weighted
Crosstalk 1kHz at rated power,8Ω
>60dB @ 1kHz
Class
AB AB AB AB H H H
T.H.D.+N (2x4Ω) 1kHz
<0.01% <0.01% <0.01% <0.01% <0.02% <0.02% <0.02%
2.3A 4.2A 8.6A 14.8A 12.1A 17.3A 22.6A
Current draw 1/8 power, 120Vac
1.65A 3.0A 5.8A 10.0A 4.2A 9.6A 10.0A
Current draw 1/3 power, 120Vac
Cooling
Connectors
Controls
LED indicators
3.5 x 19 x17.3 3.5 x 19 x 17.3 3.5 x 19 x 17.3 5.25 x 19 x 17.3 5.25 x 19 x 17.3 7.0 x 19 x 17.3 7.0 x 19 x 17.3
Protection
89 x 483 x 435 89 x 483 x 435 89 x 483 x 435 134 x 483 x 435 134 x 483 x 435 178 x 483 x 435 178 x 483 x 435
Construction
Imperial Dimensions
26.63/12.09 29.44/13.37 30.44/13.82 50.20/22.80 50.20/22.80 70.65/32.08 70.65/32.08
Metric Dimensions
Net Weight (lbs./kg.)
31.63/14.36 34.44/15.64 35.44/16.09 58.20/26.42 58.20/26.42 78.65/35.39 78.65/35.39
Gross Weight (lbs./kg.)
10Hz-20kHz,+0/-0.2dB
10Hz-20kHz,-2dB @ 148 kHz
>20kΩ balanced,>10kΩ unbalanced
Variable speed, front panel mounted,front-to-side airflow
Steel chassis,16 guage. Double thickness in rack ear areas.
Signal,ACL (one per ch.),Protect,Active
On/Off/Remote switch (front panel),two attenuators,AC mains circuit breaker, mode, gain,ground lift switches (rear panel)
3-pin euro style for input,fault I/O,sequential turn on/off,barrier strip for output
ACL (active clip limiting),IGM (instantaneous gain modulation),thermal,load,DC voltage