Crest Audio CM 2204 Professional Installation Amplifier (2RU)

Crest Audio CM 2204 Professional Installation Amplifier (2RU)

Crest Audio CM 2204 Professional Installation Amplifier (2RU)

B&H # CRCM2204 MFR # 01000540
Crest Audio CM 2204 Professional Installation Amplifier (2RU)

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  • 1Description

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
2RU rackmountable
Made in the USA
In the Box
Crest Audio CM 2204 Professional Installation Amplifier (2RU)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description
    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)

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