Crown Audio CT4150 Four-Channel 125W Power Amplifier
In stock
- SKU
- NCT4150A-U-US
Description
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.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The Crown Audio CT4150 is a compact four-channel 125W power amplifier built for live reinforcement, installed sound systems, and professional AV—delivering transparent, clean amplification in a single rack unit with fanless operation ideal for noise-sensitive venues. Sound operators and system installers rely on its DriveCore™ efficiency (over 90%), ultra-low distortion (<0.05% THD), and rock-solid channel separation for dependable multi-zone deployment in theaters, churches, venues, and touring rigs. Choose it when you need four independent channels of professional-grade amplification that runs silent, stays cool, and integrates seamlessly into larger audio systems.
Who This Is For
Great for
- ✓ Live reinforcement
- ✓ Installed sound systems
- ✓ Studio monitoring
- ✓ Professional AV installations
Not the best pick for
- – Instrument amplification
- – Portable performance
- – Consumer home audio
Frequently Asked Questions
What does fanless convection cooling mean for my setup?
The CT4150 has no cooling fan, eliminating electrical noise and hum—essential in recording studios, mastering suites, and noise-sensitive venues where even subtle fan noise can ruin takes or live events. The amplifier stays cool through passive convection, so it remains completely silent during operation.
How many speakers or zones can I power with this amp?
The CT4150 has four independent channels, each delivering 125W at both 4 and 8 ohms, allowing you to power up to four separate speaker systems or zones. Each channel has its own input and output connectors, giving you full flexibility in system design.
What kind of connectors does it use, and will my gear match?
The amplifier uses 3-pin Phoenix Connectors for inputs and 2-pin Phoenix Connectors for outputs—standard in professional installed sound and studio monitoring systems. Make sure your signal sources and speakers are wired with matching Phoenix connectors or use adapters if needed.
How does the CT4150 compare to similar models like the QSC GXD4 or Behringer NX3000?
The CT4150 uses Crown's proprietary DriveCore™ technology for exceptional efficiency and a refined Class AB character, with a 110 dB signal-to-noise ratio and <0.05% THD that rivals or exceeds comparable four-channel models. Its fanless design and compact 1 RU footprint make it ideal for installations where silence and space are priorities.
Is this amplifier suitable for powering instrument speakers or guitar rigs?
No—the CT4150 is designed for professional sound reinforcement, installed systems, and studio monitoring, not for instrument amplification or guitar cabinets. Use a dedicated guitar or bass amplifier for instrument-driven playback.
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