Crest Audio CKi 2400V Professional Installation Amplifier

With their proven track record, CKi amplifiers are designed for the most demanding contractor applications. With the ability to deliver audio, via CobraNet, and control on one CAT5 cable, the CKi series enables contractors and system designers to perform functions that other amplifier manufacturers simply cannot. By using Ethernet technology directly to the amplifier, the CKi series becomes an ultra scaleable system capable of economically powering anything from the smallest building to the largest theme park or stadium. FeaturesLegendary overbuilt power supply Rear-mounted attenuators with removable knobsEuro-style connection block, input and outputFront panel labeling areaSignal 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 systemsOptional input isolation transformers availableFive-year warrantyPowerSaveAll CKi amplifiers come standard with PowerSave circuitry.This effectively reduces currentdraw and thermal emissions to a minimum when the amplifier is at idle. PowerSave operates by cutting off the bias current to the output stage after absence of signal is sensed at the input.When signal presents itself, PowerSave instantly restores the bias current after the first positive-going waveform. Current draw specifications while PowerSave is active are included in specifications under "Idle Current Draw."

Specifications

• Output Power, 70.7V: 1200 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, Auto
• Ramp, 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 dBInput 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 OhmsHum and Noise ("A" weighted, rated power): -105 dB
• Crosstalk ("A" weighted, rated power): >-60dBClass: HInput 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: 37,000 μF
• Power Supply (factory configured): 100V-240V, 50-60Hz
• Idle Current Draw 120V: 1.3 A (PowerSave active)
• 1/8 Power Curr. Draw (typical music, 120V/70.7V): 10.0 A1/3 Power Curr. Draw (cont. music, 120V/70.7V): 23.0 AMax Curr. Draw (breaker rating, 120V/70.7V): 30.0 A
• Thermal Emissions (1/8 Power, 70.7V): 3100 BTU/hr
• Thermal Emissions (1/3 Power, 70.7V) 6500 BTU/hr
• Country of manufacture: United States
• Cooling: Variable speed, front panel mounted fan, front-to-side airflowControls: 3-position front panel On/Remote/Off switch, two rearpanel channel attenuators, AC mains circuit breaker
• Indicators: Signal, ACL (one per ch.) Protect, Active
• Power connector: 30 amp twist lockConstruction: Steel chassis, 16 guage. Double thickness in rack ear areas.
• Dimensions: 89 mm x 483 mm x 435 mm (3.5" x 19" x 17.3)