Crown Audio NCT475A-U-EU Professional Power Amplifiers

Crown CT475 four-channel power amplifier

The Crown CT475 is a professional four-channel power amplifier engineered for installed sound, recording, and broadcast applications that require efficient operation, reliable performance, and flexible system integration. Built on Crown’s innovative DriveCore technology, the amplifier delivers high-quality audio while maintaining a compact 1RU rackmount form factor suitable for space-conscious installations.

At the heart of the CT475 is DriveCore technology, which integrates the amplifier drive stage and power output stage into a highly compact architecture. This advanced design maximizes the efficiency advantages of Class-D amplification while preserving the refined sonic performance associated with premium amplifier designs. The result is a highly efficient amplifier platform capable of delivering consistent audio quality with minimal energy consumption.

The amplifier provides 75 watts per channel into both 4-ohm and 8-ohm speaker loads, making it suitable for a variety of commercial and professional audio environments. Flexible input routing allows signals to be assigned across output channels as required, simplifying installation and system configuration. The convection-cooled design eliminates the need for internal fans, ensuring silent operation and reducing maintenance requirements in noise-sensitive environments.

To support long-term reliability, the CT475 incorporates integrated Life-Safety functionality along with patented feedback and protection circuitry that helps safeguard both the amplifier and connected loudspeakers. The amplifier remains stable with speaker loads ranging from 2 to 16 ohms, offering additional installation flexibility. A universal power supply enables worldwide operation across different power standards, making the CT475 a practical solution for global deployments. Combining efficient DriveCore technology, compact installation, and dependable operation, the Crown CT475 is designed to meet the demands of modern professional audio systems.

Features of CT475

• Four-channel Class-D amplifier
• DriveCore amplification technology
• 75W output per channel
• Greater than 90% efficiency
• Compact 1RU rackmount design
• Flexible input routing
• Fanless convection cooling
• Silent operation
• Universal power supply
• Integrated Life-Safety features
• Patented protection circuitry
• Patented feedback circuitry
• Stable with 2–16 ohm loads
• Professional installed audio solution
• Recording and broadcast ready
• Low-distortion audio performance
• Energy-efficient amplifier design
• Global power compatibility
• Reliable long-term operation
• Supports transformer-based 70V/100V systems

Specifications of CT475