Crown Audio CT4150 Four-Channel 125W Power Amplifier

Crown Audio CT4150 Four-Channel 125W Power Amplifier

The CT4150 delivers compact, efficient amplification in a single rack unit with virtually silent operation—no cooling fan means clean audio in noise-sensitive environments. DriveCore™ technology fuses the drive stage directly into the power output stage, achieving over 90% efficiency while maintaining the sonic character of a refined Class AB design. Built for professional installations requiring four independent channels of transparent, reliable amplification.

Audio Performance & Efficiency

Each of the four channels produces 125W @ 4 ohms and 125W @ 8 ohms, with a Signal-to-Noise Ratio of 110 dB and distortion specifications of <0.05% THD and <0.05% IMD. The amplifier maintains ±0.5 dB frequency response with >70 dB crosstalk rejection, ensuring clean channel separation and transparent audio reproduction across the full spectrum.

Design & Connectivity

The 1 RU chassis (1.75" × 19" × 15.19") integrates four independent channels into a compact footprint weighing just 10 lbs, with inputs and outputs via 3-pin and 2-pin Phoenix Connectors. Convection cooling eliminates fan noise, while the universal power supply and 15A IEC connector support international use; the amplifier remains stable across 2–16 ohm loads.

Key Features

• 125W per channel @ 4 ohms and 8 ohms (4 channels total)
• DriveCore™ technology with >90% efficiency
• Signal-to-Noise Ratio: 110 dB
• THD <0.05%, Intermodulation Distortion <0.05%
• Frequency Response: ±0.5 dB
• Crosstalk >70 dB, Common Mode Rejection >70 dB
• 4x 3-pin Phoenix Connectors (inputs), 4x 2-pin Phoenix Connectors (outputs)
• Input Sensitivity: 1.4V, Voltage Gain: 27 dB
• 1 RU rack format; 1.75" × 19" × 15.19"; 10 lbs
• Fanless convection cooling for silent operation
• Universal power supply; 15A IEC connector
• LED indicators: Power, Signal, Clip, Thermal, Fault

The CT4150 combines professional-grade specs, compact integration, and proven DriveCore™ efficiency—an ideal choice for installed sound systems, live reinforcement, and studio monitoring requiring four independent channels without compromise.