Crest Audio CKi 800v Cobranet NxDSP Amplifier

Crest Audio CKi 800v Amplifier with Cobranet and NxDSP

Crest Audio, the first company to offer computer controlled amplification now raises the bar. With the introduction of the CKi series of amplifiers, Crest Audio has added many standard features that other manufactures either charge additional for or don’t offer at all.Whether your requirements are simple or extremely complex, CKi series amplification systems are perfect for permanent installations of any size. As with all Crest Audio amplifiers, reliability and sonic performance are the most important factors in the amplifiers design.

CKi 800V :

• Legendary overbuilt power supply
• Rear-mounted attenuators with removable knobs
• Euro-style connection block, input and output
• Front panel labeling area
• Signal present, active, protect and ACL. LEDs (on front and rear of amplifier)
• PowerSave and sequential turn off (hardwired STO standard on all models)
• Fault I/O for connection to other monitoring systems

Specifications :

• Output Power, 70.7V: 400 Watts
• Max RMS Output Voltage (each channel): 92 Volts
• Peak Output Voltage (each channel): 130 Volts
• Frequency Response (+0 / -0.3dB, 1W/70.7V): 10Hz-20kHz, -3dB @148kHz
• Power Bandwidth (full power, 1% THD+N): 10Hz – 20kHz, +0/-0.2 dB
• TourClass® Protection ACL, IGM, AutoRamp, short circuit, DC voltage, turnon/off transient, current inrush, sub/ultrasonic input.
• THD+N (rated power, 1kHz): <0.1% @ 70.7V out
• SMPTE IMD (rated power, 60Hz & 7kHz): <0.1% @ 70.7V out
• Input CMRR (1kHz): >60 dB
• Input Sensitivity (rated power): 1.77V @ 70.7V out
• Standard Voltage Gain X40 (jumper-selectable for X20 or .775V sens.)
• Input Impedance (balanced/unbalanced) >20k Ohms / >10k Ohms
• Hum and Noise (“A” weighted, rated power): -105 dB
• Crosstalk (“A” weighted, rated power): >-60dB
• Class: AB
• Input Connectors (per channel): Rear-panel barrier strip input, 4-pin Phoenix sequential turn-on/off connector on standard CC-STL module
• Output Connectors (per channel): Rear-panel barrier strip output
• Filter Storage: 11,200 μF
• Power Supply (factory configured): 100V-240V, 50-60Hz
• Idle Current Draw 120V: 0.8A (PowerSave active)
• 1/8 Power Curr. Draw (typical music, 120V/70.7V): 7.0 A
• 1/3 Power Curr. Draw (cont. music, 120V/70.7V): 10.1 A
• Max Curr. Draw (breaker rating, 120V/70.7V): 15.0A
• Thermal Emissions (1/8 Power, 70.7V): 2540 BTU/hr
• Thermal Emissions (1/3 Power, 70.7V) 3263 BTU/hr
• Country of manufacture: United States
• Cooling: Variable speed, front panel mounted fan, front-to-side airflow
• Controls: 3-position front panel On/Remote/Off switch, two rearpanel channel attenuators, AC mains circuit breaker
• Indicators: Signal, ACL (one per ch.) Protect, Active
• Construction: Steel chassis, 16 guage. Double thickness in rack ear areas.

NxCobraNet Module :

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 ethernet 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 temperature, 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 compliant Neutrik EtherCon connector to ensure a secure connection.

NxDSP Module :

The Crest Audio NxDSP plug in board for NxCobraNet and NxEthernet performs various functions depending on which module it is used with.
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.