Crown Audio CT4150 Four-Channel 125W Power Amplifier
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 studio 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 recording studios and production facilities requiring four independent channels of transparent, reliable amplification for monitor mixes, powered speakers, or subwoofer management.
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—critical for accurate monitoring and mixing decisions.
Studio Integration & 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 studio setups; 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 rack integration, and proven DriveCore™ efficiency—ideal for home studios, project spaces, and control rooms needing four independent channels for monitor distribution, headphone sends, or powered speaker management without thermal noise or sonic compromise.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The Crown Audio CT4150 is a four-channel 125W studio monitoring and mastering amplifier that delivers transparent, artifact-free amplification for accurate mixing and playback in professional recording environments. Engineers and producers value its ultra-low noise floor (110 dB SNR), vanishingly low distortion (<0.05% THD), and fanless cooling—ensuring clean, interference-free monitoring without the hum or hiss that can mask mixing decisions. Pick it when you're building a multi-zone studio setup or monitor system that demands clinical accuracy and silent operation for critical listening.
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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