Crest Audio CKd Series, Руководство пользователя

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CKd 1208
Rated Power @ 4 ohms (1kHz single channel driven) 1,250 watts per channel at <0.15%
Rated Power @ 8 ohms (1kHz single channel driven) 1,250 watts per channel at <0.15%
Rated Power @ 70.7 volts (1kHz single channel driven) 1,250 watts per channel at <0.15%
Rated Power @ 100 volts (1kHz single channel driven) 1,250 watts per channel at <0.1%
Rated Power @ 4 ohms (all ch driven 50% duty cycle*) 1,250 watts per channel at 1kHz
Rated Power @ 8 ohms (all ch driven 50% duty cycle*) 1,250 watts per channel at 1kHz
Rated Power @ 70.7 volts (all ch driven 50% duty cycle*) 1,250 watts per channel at 1kHz
Rated Power @ 100 volts (all ch driven 50% duty cycle*) 1,250 watts per channel at 1kHz
Minimum Load Impedance 4 ohms
Frequency Response ( ‐ .5 dB @ 1 watt (8 ohm load) 10 Hz ‐ 20 kHz
Damping Factor (8 ohms) >200:1 @ 20 Hz ‐ 1 kHz
Input CMRR < ‐ 75 dB at 1kHz
Voltage Gain (Low Z) x 40 (32.0 dB)
Voltage Gain (70v/100v) x 50 (34.0 dB)
High Pass Filter 70 Hz, 3rd order HPF
Input Sensitivity (Low Z) 1.9V for 1 kHz 4 ‐ ohm rated power
2.55V for 1 kHz 8 ‐ ohm rated power
Input Sensitivity (70v/100v) 1.4V for 1 kHz (70V) 4 ‐ ohm rated power
2.5V for 1 kHz (100V) 8 ‐ ohm rated power
Input Impedance 20K Ohms balanced, 10K Ohms unbalanced
Noise and Hum
> ‐ 95dB, "A" weighted reference to rated power @ 8 ohms
Current Consumption all Channels
Idle: 200 watts, 400VA
1/8 Power 8 ohms / 4 ohms: 1.6kW, 2.45kVA / 1.72kW, 2.7kVA
1/3 Power: 4kW, 6kVA / 4.4kW, 6.6kVA
Thermal Emission all Channels (btu/hour)
Idle: 677 btu/hr
1/8 Power 8 ohms / 4 ohms: 1060 / 1170
1/3 Power 8 ohms / 4 ohms: 2115 / 2330
Cooling
Controls
Front:
Rear:
Indicator LEDs
Front panel:
Rear panel:
Channel Protection (per channel fault)
Power Supply Protection (PS1 channels 1 ‐ 4, PS2 channels 5 ‐ 8)
Unit Protection (device fault)
Connectors
Input:
Output:
Construction
Dimensions
Height: 3.48" (8.84 cm), 2 EIA rack spaces
Width (front): 19.00" (48.26 cm)
Width (rear): 17.25" (43.82 cm)
Overall depth: 20.30" (51.56 cm)
Mounting depth: 19.70" (50.04 cm) behind front rack ears
Gross Weight 29.6 lbs (13.43 kg)
Net Weight 34.6 lbs (15.7 kg)
Power Requirements
Warranty
* repetitive 1kHz cycles 50ms onset of clip and 50ms at 1/8 power
CREST AUDIO CKd SERIES POWER
Temperature dependent variable speed 80mm DC fan
On/Standby/Remote AC Switch, two independent 20A circuit breakers (one per 4 channels)
8 channel input signal attenuators, 8 channel 100V/70V/LowZ selection switches, two 3 ‐ position connectors for
STO In and STO Out, 8 Fault Relay outputs, 8 Control Voltage inputs, NexSys module bay
8 Mute, 8 Fault, 8 ACL/IGM, 8 Signal, 8 Active, 2 Power Supply, 1 ACV Present
8 Mute, 8 Fault, 8 ACL/IGM, 8 Signal, 8 Active, 2 Power Supply, 1 ACV Present
Over ‐ temperature, incorrect loads, short ‐ circuit, over ‐ current, therma
DC, subsonic, Rail Voltage, Bias Voltage
Eight 3 ‐ position Euro ‐ style detachable terminal blocks
5 Years
Over/Under AC Voltage, Fan operation, DC Voltage Fault
Four 4 ‐ position barrier strip terminal blocks with screws
14 ‐ gauge aluminum reinforced chassis with 12 ‐ gauge steel rack ears
120 VAC 60 Hz or 230 VAC 50 Hz
CKd Series Owners Manual v1e Page 26