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Crest Audio Ci 30x4 4 Channel Amplifier
Part # 03001180
Model # Ci 30x4

The Crest Audio Ci 30x4 amplifier is designed to drive low-impedance or 70V speaker loads without bridging between channels. Bridged operations are supported for additional power into 8 ohm loads or 140V operation.


Availability: Usually arrives in 5-9 business days.

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Description

Details

The Ci™ Series amplifiers are designed to drive low-impedance or 70V speaker loads without bridging between channels. Bridged operations are supported for additional power into 8 ohm loads or 140V operation.

As with all Crest Audio products, sonic performance is of primary importance. In addition, high-efficiency, comprehensive load protection, and compact packaging have been achieved in the Ci design.

The Ci Series amplifiers incorporate Crest Audio’s tried-and-true modular approach to intelligent amplifier configuration. Through the provision of a single module bay, these amplifiers come with a module that facilitates load monitoring, digital audio delivery, and Crest Audio’s NexSys networking.

A full complement of features and options makes this series very versatile, whether powering airport systems, restaurant audio or a myriad of other applications.

Features

Features

  • Four channels (100V isolated outputs with optional accessories)
  • Individual channels may be selected as low impedance or 70V
  • Tour Class® protection
  • Front and rear panel indicators for amplifier status
  • Variable-speed fan
  • Sequential turn-on standard
  • Euro-style input connectors
  • Barrier strip output connectors
  • One controlled-voltage input per channel standard
  • One fault relay per channel standard
  • Module bay provided to input Nx module bay accessories for full amplifier control and monitoring via NexSys® 4 software or MediaMatrix® product and digital audio distribution
  • EN60849 and ANSI60849 compliant with optional accessories
Specification
Frequency Response 1W @ 8Ω5 Hz to 20 kHz, +/-1 dB
Power BW Rated Power @ 4Ω, 1% THD+N20 Hz to 20 kHz, +/-1 dB
THD + N<0.02% @ rated power (@ 70 volt, 1kHz)
Damping Factor200:1 @ 8 ohms (20 Hz to 100 Hz)
Input CMRR>60 dB @ 1kHz
Gain / Input Sensitivity @ 70V1.14 volts for full rated output power (70 volt switch selected)
Gain / Input Sensitivity @ 8Ω1.0 volts for full rated output power (Low Z switch selected)
Input Impedance>20 kohms balanced, >10 kohms unbalanced
Hum and Noise> -97 dB, A-weighted below rated power @ 8 ohms
Crosstalk> -60 dB below max rated power (1 kHz)
Power SupplyLinear with toroid transformer
Circuit Breaker Rating (120V/230V)6A / 3A
Current Draw (120VAC) 1/8 Power, 70V3A
1/3 Power, 70V6A
At Idle<1.0A
Thermal Emissions 1/3 Power, 70V btu/hr621
CoolingFront to side via variable speed fan
Input ConnectorsBalanced three-pin Euro-style (rear panel)
Output ConnectorsBarrier strips (rear panel)
Power Sequence Connectors2 x three-pin Euro-style (rear panel)
Fault ConnectorsThree-pin Euro-style (rear panel)
Control Voltage ConnectorsTwo-pin Euro-style (rear panel)
ControlsFront panel: three-position On / Off / Remote power switch
Rear panel: stepped attenuators, 70V/Low Z switch, dual/bridged switch, circuit breaker
LED IndicatorsFront and rear panels: Signal, ACL/IGM, Protect, Active, Power Present
Construction16-gauge steel chassis, double thickness in rack ear areas
Dimensions (H x W x D)3.5" (88.9 mm) x 19" (482.6 mm) x 17.3" (439.42 mm)
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