The Crown CT475 4-Channel Power Amplifier delivers professional-grade sound in a sleek, compact 1RU chassis, making it easy to install in virtually any equipment rack. With 75W per channel into 8 ohms, it provides clear, powerful audio with minimal distortion. Powered by DriveCore™ technology, the CT475 achieves over 90% efficiency, eliminating the need for a cooling fan and enabling ultra-quiet operation.
DriveCore technology integrates the amplifier drive stage into the power output stage on a single chip, combining Class D efficiency with the sonic quality of a highly evolved Class AB design. The amplifier features a four-stage universal power supply with Normal, Green, Sleep, and Deep Sleep modes, delivering peak efficiency while minimizing power consumption.
Designed for flexibility and reliability, the CT475 includes flexible input routing, convection cooling, integrated life-safety features, and patented protection circuits. It supports 2–16 ohm loads and 70V/100V applications with external transformers, making it ideal for houses of worship, retail spaces, bars, lounges, and other medium-to-large installations.
Crown CT475 4-Channel Key Features:
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Flexible Input Routing: Send any input to any of the four outputs.
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Convection-Cooled Design: Fanless operation for ultra-quiet performance.
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Universal Power Supply: Four-stage design for peak efficiency and global voltage compatibility.
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Integrated Life-Safety Features: Protects both the amplifier and connected equipment.
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High Power Output: Up to 75W per channel at 8 ohms, stable for 2–16 ohm loads.
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DriveCore™ Technology: Over 90% efficiency with no compromise in sound quality.
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Patented Feedback & Protection Circuits: Safeguards against short circuits, overloads, and thermal issues.
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Compact 1RU Chassis: Easily fits in any standard rack.
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70V/100V Support: External transformers enable high-voltage applications.
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Energy-Saving Modes: Normal, Green, Sleep, and Deep Sleep reduce power consumption to under 1W when idle.
Crown CT475 4-Channel Specifications:
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Power Rating
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75W/Channel @ 8 Ohms.
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Channels
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4.
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Damping Factor
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Not Specified by Manufacturer.
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Input Sensitivity
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1.4V.
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Frequency Response
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20Hz - 20kHz ±0.5dB.
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Signal-to-Noise Ratio
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110dB.
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Total Harmonic Distortion (THD)
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< 0.05%.
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Intermodulation Distortion (SMPTE)
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< 0.05%.
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Crosstalk
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> 70dB.
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Common Mode Rejection Ratio
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> 55dB, > 70dB Typical.
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Connectors
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4 x 3-Pin Phoenix Inputs. 4 x 2-Pin Phoenix Outputs. 1 x Power Input.
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Controls
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4 x Input Attenuator Knobs. 1 x Set of Amp Control DIP-Switches. 1 x Power Switch.
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Indicators
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1 x Power LED. 4 x Signal LEDs. 4 x Clip LEDs. 4 x Thermal LEDs. 4 x Fault LEDs.
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Cooling
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Convection.
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Power Consumption
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Not Specified by Manufacturer.
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Power Requirements
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Universal Power Supply.
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Crown CT475 4-Channel Power Amplifier Dimensions (HxWxD)
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1.75 x 19 x 14.25" (44 x 483 x 362mm)
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Crown CT475 4-Channel Power Amplifier Weight
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10 lbs (4.54kg)
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