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User Manual for Crest Audio Ci 20 x 8 Multi-Channel Power Processing Amplifier Click to enlarge the picture
Contents of the user manual for the Crest Audio Ci 20 x 8
- Product category: Power Amplifiers Crest Audio
- Brand: Crest Audio
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Crest Audio Power Amplifiers
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User manual for the Crest Audio Ci 20 x 8 contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Crest Audio product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Crest Audio user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Crest Audio product will considerably shorten its lifespan!
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Product description The 2RU Ci 20 x 8 Multi-Channel Power Processing Amplifier from Crest Audio is designed to drive low-impedance or 70V speaker loads without bridging between channels. Bridged operations are supported for additional power into 8Ω loads or 140V operation. This amplifier features 8 channels. Channels may be selected as low impedance or 70V individually. The 20 x 8 amplifier is protected by Tour Class protection. It has front and rear panel indicators for amplifier status. There is one controlled-voltage input per channel standard, and one fault relay per channel standard. This amplifier has a sequential turn-on standard, Euro-style input connectors, and barrier strip output connectors. The module bay is provided to input Nx module bay accessories for full amplifier control and monitoring via NexSys 4 software or MediaMatrix product and digital audio distribution. - Individual channels may be selected as low impedance or 70V
- Front and rear panel indicators for amplifier status
- 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
In the Box Crest Audio Ci 20 x 8 Multi-Channel Power Processing Amplifier (2RU) Limited 5-Year Warranty Table of Contents
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Technical parametersCrest Audio 3001220 Specs | Power Rating | Dual:
8 Ω: 200 W
70 V: 200 W
Bridged:
16 Ω: 400 W
140 V: 400 W | | Damping Factor | 200:1 @ 8 Ω (20 - 100 Hz) | | Input CMRR | > 60 dB @ 1 kHz | | Input Sensitivity | @ 70 V: 1.14 V for full rated output power (70 V switch selected)
@8 Ω: 1.0 V for full rated output power (Low Z switch selected) | | Input Impedance | Balanced: > 20 kΩ
Unbalanced: >10 kΩ | | Hum & Noise | > -97 dB, A-weighted below rated power @ 8 Ω | | Crosstalk | > -60 dB below max rated power, 1 kHz | | Frequency Response | 5 Hz to 20 kHz, ± 1 dB | | Power Bandwidth | 20 Hz to 20 kHz, ± 1 dB @ 4 Ω, 1% THD | | Total Harmonic Distortion/Noise | <0.02% @ rated power @ 70 V, 1 kHz | | Connectors | 1 x RJ45 neutrik, CobraNet data port
1 x 4-pin Euro-style, channel 1 & 2 CV input
1 x 4-pin Euro-style, channel 3 & 4 CV input
1 x 4-pin Euro-style, channel 5 & 6 CV input
1 x 4-pin Euro-style, channel 7 & 8 CV input
1 x 6-pin Euro-style, channel 1 & 2 Fault output
1 x 6-pin Euro-style, channel 3 & 4 Fault output
1 x 6-pin Euro-style, channel 5 & 6 Fault output
1 x 6-pin Euro-style, channel 7 & 8 Fault output
8 x 3-pin Euro-style, channel 1 to 8 balanced input
8 x 2-pin speaker terminal, channel 1 to 8 speaker output
1 x 3-pin Euro-style, power sequence input
1 x 3-pin Euro-style, power sequence output
1 x EIC 3-prong power connector, input | | Controls | Front Panel:
1 x On/Off/Remote power switch
Rear Panel:
8 x Stepped attenuators
1 x 70 V/Low Z switch per channel
1 x Dual/Bridged switch per channel pair
1 x Circuit breaker
1 x Edit pushbutton
1 x Select pushbutton
1 x Function pushbutton
1 x Up pushbutton
1 x Down pushbutton | | Indicators | Front Panel:
8 x Signal
8 x ACL/IGM
8 x Fault
8 x Mute
1 x Active
1 x Low battery
Rear Panel:
8 x Signal
8 x ACL/IGM
8 x Fault
8 x Mute
1 x Data
1 x Link
6 x Function
1 x Active
1 x Low battery | | Cooling | Front to side via variable speed fan | | Current Draw | Circuit Breaker Rating (120 / 230 VAC): 12 A / 6 A
1/8 Power, 70 V: 4.0 A
1/3 Power, 70 V: 8.0 A
Idle: < 2.0 A
BTU/hr @ 1/3 Power, 70 V: 947 | | Dimensions (H x W x D) | 3.5 x 19.0 x 17.3" (8.9 x 48.3 x 43.9 cm)
+ 1.25" (3.18 cm) rack ears | | Weight | 48.0 lb (21.8 kg) | | | | Package Weight | 42.0 lb | | Box Dimensions (LxWxH) | 24.5 x 24.5 x 6.0" |
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