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User Manual for Crest Audio CM 2204 Professional Installation Amplifier Click to enlarge the picture
Contents of the user manual for the Crest Audio CM 2204 Professional Installation
- 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 CM 2204 Professional Installation 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 CM 2204 Professional Installation Amplifier from Crest Audio drives 4 independent channels into low impedance or 70V loads. Each channel can drive 4Ω, and up to 4 channels are allowed. A switch allows selection of 0.775 Volt sensitivity or x40 gain. A high-pass filter is selectable per channel. The on-board protection suite includes Crest Audio's proprietary ACL (Automatic Clip Limiting) circuitry, which prevents the amplifier from sending potentially damaging clipped signals to the loudspeakers. It also features 4 Clip, 4 Signal, 4 Protect, and Active safeguards for each channel, all referenced on the front panel with LED indicators along with the power indicator. The Instantaneous Gain Modulation (IGM) circuit adjusts the channel gain to a safe level. The featured AUTORAMP signal control attenuates the signal while the speakers are disconnected. This unit is cooled by a variable speed fan with front-to-side airflow. - ACL (Automatic Clip Limiting) protection
- Instantaneous Gain Modulation (IGM) circuit adjusts the channel gain to a safe level
- AUTORAMP signal control attenuates the signal while the speakers are disconnected
- Cooled by a variable speed fan with front-to-side airflow
- Recessed, stepped attenuators
- 16-gauge steel-reinforced with 12-gauge rack ears
UPC: 875866006226 In the Box Crest Audio CM 2204 Professional Installation Amplifier (2RU) Limited 5-Year Warranty Table of Contents
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Technical parametersCrest Audio 01000540 Specs | Power Rating | Bridge 8 Ω: 320 W
Bridge 140 V: 440 W
1 channel x 4 Ω: 160 W
1 channel x 8 Ω: 245 W
70.7 V, 24 Ω: 220 W
4 channel x 4 Ω: 155 W
4 channel x 8 Ω: 240 W
4 channel x 70.7 V: 180 W | | Damping Factor | >200:1 @ 20 Hz - 1 kHz @ 8 Ω | | Input Sensitivity | 0.775 V (0 dBu setting) | | Input Impedance | Balanced: 20 kΩ
Unbalanced: 10 kΩ | | Minimum Load Impedance | 4 Ω | | Voltage Gain | x40 or 0 dBu (x90) | | Crosstalk | > -60 dB @ 1 kHz at rated power @ 8 Ω | | Hum and Noise | > -97 dB, below rated output, 22 Hz - 22 kHz | | Frequency Response | 5 Hz - 20 kHz, -1 dB @ 1 W (8 Ω load) | | Total Harmonic Distortion (THD) | <0.02% @ rated power, 1 kHz (70.7 V) | | Input CMRR | > -60 dB @ 1 kHz | | Connectors | 4 x 3-position Euro-style detachable terminal block, input (1 per channel)
4 x 2-position Euro-style detachable terminal block, output (1 per channel)
1 x 3-pin IEC, power input | | Controls | 4 x Channel input signal attenuator (1 per channel)
4 x Channel HPF selection switch (1 per channel)
4 x Channel gain selection switch (1 per channel)
1 x On/Off switch | | LED Indicators | 4 x Clip (1 per channel)
4 x Signal (1 per channel)
4 x Protect (1 per channel)
1 x Active | | Cooling | Variable speed, front panel mounted, front-to-side airflow | | Current Draw | 2.8 A @ 1/8 power
4.4 A @ 1/3 power
< 1 A @ idle | | Emission | Thermal @ 1/8 Power: 473 BTU/hour
Thermal @ 1/3 Power: 621 BTU/hour | | Class | D | | Power Requirements | 120 VAC 60 Hz (AB), 230 VAC 50 Hz (DV) | | Dimensions | 3.5 x 19.0 x 17.05" (8.8 x 48.3 x 43.3 cm) | | Weight | 34.0 lb (15.4 kg) | | | | Package Weight | 44.2 lb | | Box Dimensions (LxWxH) | 23.0 x 21.5 x 7.0" |
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