Crown Audio CT875 Eight-Channel 75W Power Amplifier
Description
Crown Audio CT875 Eight-Channel 75W Power Amplifier
The CT875 delivers remarkably clean amplification in an extraordinarily compact 1RU chassis with no cooling fan required. Built on Crown's proprietary DriveCore™ technology, this eight-channel amplifier achieves over 90% efficiency while maintaining the sonic character of a Class AB design. Its convection-cooled construction and light 10 lb weight make it ideal for studio monitoring systems and live recording setups where rack space and thermal management are critical constraints.
Amplification & Power Delivery
Each of the eight channels produces a rated 75W output at both 4 and 8 ohms, with exceptionally low distortion of less than 0.05% THD and intermodulation distortion. The amplifier remains stable across 2–16 ohm load impedances, providing reliable performance across a wide range of monitor speaker configurations and headphone distribution systems without requiring external transformers for standard applications.
Design & Connectivity
The CT875 features balanced 3-pin barrier block-type line inputs for professional audio routing and 4-pin Phoenix-type speaker outputs for secure, field-serviceable connections. Its universal power supply accommodates international voltage standards, while the 15A IEC connector and idle power consumption of just 23.0W reflect its efficient, low-footprint design philosophy—critical for home and project studio environments where power and heat dissipation impact workspace comfort.
Key Features
- Eight channels of 75W amplification per channel at 4 and 8 ohms
- DriveCore™ technology with greater than 90% efficiency
- 1RU chassis with convection cooling and no fan
- THD less than 0.05%; Intermodulation Distortion less than 0.05%
- Signal-to-Noise Ratio of 110 dB (A-Weighted)
- Balanced 3-pin barrier block inputs; 4-pin Phoenix speaker outputs
- Voltage gain of 25 dB; Input sensitivity 1.4V
- Stable operation across 2–16 ohm load impedances
- Universal power supply for international use with 15A IEC connector
- Patented feedback and protection circuitry for integrated life-safety features
- Compact dimensions: 1.75" × 19" × 15.19"; Weight 10 lbs
- Frequency response ±0.5 dB with idle power consumption of 23.0W
The CT875 combines professional-grade audio performance with exceptional efficiency and reliability, delivering transparent amplification for studio monitoring, headphone distribution, and multi-channel recording applications where compact sizing and fanless operation are essential.
More Information
| Condition | New |
|---|---|
| Country of Manufacture | China |
Reviews
At a Glance
The CT875 is a ultra-compact, fanless eight-channel power amp that delivers transparent, low-distortion amplification across eight independent channels—perfect for home-studio monitors, multi-zone playback systems, or small live recording setups where rack space is at a premium. Its 90%+ efficiency and passive cooling keep your studio quiet and cool while maintaining the sonic clarity of Class AB design, and the flexible load impedance range lets you dial in the exact speaker configuration your mix needs.
Frequently Asked Questions
What does 75W per channel mean, and is that enough power for live sound or studio use?
Each of the eight channels outputs 75W at both 4 and 8 ohms, giving you stable amplification across a wide range of speaker impedances. For live applications, 75W per channel works well for small to mid-sized venues, monitors, or distributed speaker systems; for studio use, it's ideal for compact monitor setups or multi-zone playback where space is limited.
Why is the fanless design important?
The CT875 uses convection cooling instead of a fan, meaning it operates silently and requires no airflow management—critical for installations in tight racks, portable rigs, or studio environments where fan noise would be picked up by microphones or compromise recording quality. It also reduces moving parts that can fail on the road.
What speaker impedances does this amp support?
The CT875 is stable across 2–16 ohm load impedances, so you can safely connect any standard speaker configuration without external transformers or impedance matching gear. This flexibility makes it simple to adapt to different venues, monitor systems, or studio speaker setups.
What are the input and output connectors?
It features balanced 3-pin barrier block-type line inputs for professional audio routing and 4-pin Phoenix-type speaker outputs for secure, field-serviceable connections. Both connector types are industry-standard for pro touring and installed sound, ensuring reliable hookup in any environment.
How efficient is this amp, and why does that matter?
The CT875 achieves over 90% efficiency and draws only 23.0W of idle power, thanks to Crown's proprietary DriveCore technology. Higher efficiency means less heat generation, quieter operation, and lower power draw—saving you money on venue electrical budgets and keeping your touring rig cooler and lighter.
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