Crest Audio

Crest Audio Ci 20x8 Multi-Channel Power Processing Amplifier

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Crest Audio Ci 20x8 Multi-Channel Power Processing Amplifier
Crest Audio Ci 20x8 - IMG01
Ci 20x8
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The Ci Series is the next generation family of elevated efficiency amplification from Crest Audio. Ci amplifiers are designed to drive low-impedance or 70-volt speaker loads without bridging between channels. Bridged operations are supported for additional power into 8-ohm loads or 140-volt 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-andtrue modular approach to intelligent amplifier configuration. Through the provision of a single module bay, these amplifiers comes 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. The Ci Series amplifiers bring a new generation of amplification to Crest Audio.
  • Four and eight-channel versions available (100-volts  isolated outputs with optional accessories).
  • Individual channels may be selected as low impedance or  70 volt
  • 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
  • 100- and 50-volt operation supported with external accessories
  • EN60849 and ANSI60849 compliant with optional accessories
  • Frequency response 1W @ 8 ohms: 5 Hz to 20 kHz, +/-1 dB
  • Power bw rated power @ 4 ohms, 1% THD+N: 20 Hz to 20 kHz, +/-1 dB
  • THD + N: <0.02% @ rated power (@ 70 volt, 1kHz)
  • Damping factor: 200:1 @ 8 ohms (20 Hz to 100 Hz)
  • Input cMRR: >60 dB @ 1kHz
  • Gain / input sensitivity @ 70 volts: 1.14 volts for full rated output power (70 volt switch selected)
  • Gain / input sensitivity @ 8Ω: 1.0 volts for full rated output power (Low Z switch selected)
  • Inputimpedance: >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 supply: Linear with toroid transformer
  • Circuit breaker rating (120V/230V): 12A / 6A
  • Current draw (120VAC) 1/8 power, 70 volts: 4.0A
  • 1/3 power, 70 volts: 8.0A
  • At idle: <2.0A
  • Thermal emissions 1/3 Power, 70 volts btu / hr: 947
  • Cooling: Front to side via variable speed fan
  • Input connectors: balanced three-pin Euro-style (rear panel)
  • Output connectors: barrier strips (rear panel)
  • Power sequence connectors: 2 X three-pin Euro-style (rear panel)
  • Fault connectors: three-pin Euro-style (rear panel)
  • Control voltage connectors two-pin Euro-style (rear panel)
  • Controls: front panel: three-position On / Off / Remote power switch rear panel: stepped attenuators, 70V/Low Z switch, dual/bridged switch, circuit breaker
  • LED indicators: front and rear panels: Signal, ACL/IGM, Protect, Active, Power Present
  • Construction: 16-gauge steel chassis, double thickness in rack ear areas
  • Dimensions (h x w x d): 3.5" x 19" (front panel) 17" (chassis) x 17.3" (18.55" to rack ears)

Tech Specs


Delivery & Returns

At Gear Club Direct, we want you to be happy with your purchase. We understand that there are times when once a product is received, it may not be what you needed or wanted after all. So, we will gladly accept your qualifying return within 15 days of the delivery date. After 15 days of the delivery date, all sales are final. 


The Return Process
Customers are required to obtain a Pre-Authorization to return any product. To submit a request for a return, simply log in to your account and request a return and one of our sales representatives will contact you within 24-48 business hours. If you do not have an account with us, please open a help ticket, providing as much detail as possible and whether you are requesting a refund or an exchange.  READ MORE

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