Crown CDi 4|300 - 300W 4-Channel Analog Input 70V/100V Power Amplifier

The Crown CDi 4|300 is a highly efficient 300W 4-channel analog input power amplifier designed to provide versatile, high-performance audio amplification for small to medium-sized installations such as restaurants, retail stores, and similar venues. Part of the CDi DriveCore series, this amplifier is powered by Crown's proprietary DriveCore technology, which streamlines the internal design by eliminating hundreds of components, thereby increasing reliability and ensuring high-quality audio output. With its sleek black finish, the CDi 4|300 not only delivers powerful audio performance but also offers the flexibility and durability required for long-term professional use.

Each of the four output channels on the CDi 4|300 is capable of delivering 300W at 4 ohms or for high-impedance 70V/100V systems, making this amplifier ideal for distributed audio applications that require consistent power across multiple zones. Its ability to drive up to 100Vrms speaker loads without the need for an external transformer simplifies installations, while the amplifier's support for bridge mono mode allows it to deliver up to 600W per channel. This flexibility ensures that the CDi 4|300 can handle a wide range of audio setups with ease, making it a valuable tool for integrators and installers.

The CDi 4|300 features an integrated Digital Signal Processor (DSP) for enhanced audio control and configuration. The onboard DSP includes features such as input routing, 8-band parametric EQ on both input and output, crossovers, input delay (up to 1000ms), output delay (up to 100ms), and LevelMAX limiting for speaker protection. These features allow users to fine-tune the system for optimal performance in any environment. Additionally, the amplifier comes pre-loaded with JBL speaker tunings, providing quick and easy setup, especially when paired with JBL speakers, ensuring optimized audio right out of the box.

Designed with ease of use in mind, the CDi 4|300 includes an intuitive front-panel interface that allows for complete configuration of the amplifier without the need for external software. However, for more advanced control and monitoring, the amplifier is compatible with Harman's HiQnet Audio Architect software, which enables remote management via a standard TCP/IQ network. This feature is ideal for installations that require networked control, allowing users to monitor amplifier performance and make adjustments from a central location. Additionally, the GPIO/AUX port provides the ability to recall presets, mute channels, power on/off the amplifier, and monitor system faults for further integration into automated systems.

For cooling, the CDi 4|300 utilizes a continuously variable speed forced-air system that moves air from front to back, ensuring efficient temperature management even under heavy use. Despite its powerful output, the amplifier maintains low fan noise (51dBA), making it suitable for environments where quiet operation is essential, such as in retail stores or restaurants. The amplifier's robust power supply is compatible with 100V-240V mains power, ensuring it can be used in installations around the globe, while the heavy-duty IEC power connector ensures a reliable connection to the power source.

Weighing just 16.13 lbs and with dimensions of 19 x 13.55 x 3.5 inches, the CDi 4|300 is designed for easy integration into standard 19-inch rack systems, maximizing space efficiency. Its high signal-to-noise ratio (>104dB) and low total harmonic distortion (0.35%) ensure crystal-clear audio quality with minimal interference, making it an ideal choice for professional audio applications that demand precision and reliability.

Features

• 300W 4-channel analog input power amplifier for small/medium installations
• DriveCore technology for enhanced reliability, efficiency, and high-quality audio performance
• Supports 70V/100V high-impedance speaker loads without external transformers
• Advanced DSP with input/output EQ, crossovers, delays, and LevelMAX limiting
• Pre-loaded JBL speaker tunings for quick setup and system optimization
• Network control and monitoring via Harman's HiQnet Audio Architect software
• Intuitive front-panel interface for easy configuration and control
• Bridge mono mode for up to 600W per channel for higher power applications
• Low fan noise (51dBA) for quiet operation in environments where sound is critical
• Compatible with 100V-240V mains power for global installations
• Compact and lightweight design (19 x 13.55 x 3.5 inches, 16.13 lbs) for easy rack integration
• High signal-to-noise ratio (>104dB) and low distortion (0.35%) for clear, precise sound

Specifications

• Output Power (Dual Mode): 150W (2 Ohm), 300W (4 Ohm), 300W (8 Ohm), 150W (16 Ohm), 300W (70Vrms), 300W (100Vrms)
• Output Power (Bridge Mono Mode): 300W (4 Ohm), 600W (8 Ohm), 600W (16 Ohm), 600W (140Vrms), 600W (200Vrms)
• Digital Signal Processing: 96kHz, 32-bit floating point
• Voltage Gain: 34dB
• Frequency Response: +/-0.5dB
• Analog Input Signal to Noise Ratio: >104dB
• Total Harmonic Distortion: 0.35%
• Intermodulation Distortion: ≤0.35%
• Damping Factor: >1000
• Crosstalk: >80dB
• Common Mode Rejection: >70dB
• DC Output Offset: ±10mV
• Input Impedance: 20 kOhm balanced, 10 kOhm unbalanced
• Maximum Input Level: +20dBU
• Required AC Mains: 100V-240V, 50/60Hz
• Cooling: Continuously variable speed forced air, front-to-back airflow
• Power Supply Connector: Standard IEC type 320 inlet for detachable connector 100-240V
• Load Impedance (Stereo/Dual Mode): 2 Ohm to 16 Ohm; 70Vrms and 100Vrms
• Load Impedance (Bridge Mono): 4 Ohm to 16 Ohm; 140Vrms and 200Vrms
• Maximum Fan Noise: 51dBA
• Weight: 16.13 lbs
• Dimensions: 19 x 13.55 x 3.5 inches