Crown DCi 4|300 - 300W 4-Channel at 4-Ohm 70V/100V Analog Power Amplifier

The Crown DCi 4|300 is a highly efficient 4-channel analog power amplifier, delivering 300W per channel at 4 ohms, and is designed for professional installed sound applications. Built on Crown's proprietary DriveCore technology, the DCi Series is known for its robust performance, energy efficiency, and flexibility, making it ideal for medium-sized installations such as restaurants, retail spaces, houses of worship, and more. Its compact 2U rackmount design houses the power and flexibility needed to drive low-impedance and constant voltage systems (70V/100V), making it a versatile solution for both distributed audio and high-performance sound systems.

The DCi 4|300 stands out with its Direct Drive capability, allowing each channel to be individually configured for either low-Z or high-Z operation. This eliminates the need for transformers, providing better audio quality, reduced wiring complexity, and lower installation costs. With the ability to drive 70V/100V speaker loads directly, the amplifier is well-suited for distributed audio applications, enabling more speakers to be driven per output while maintaining consistent performance.

Crown's DriveCore technology is a key feature of the DCi 4|300, integrating hundreds of discrete components into a single chip. This technology reduces power consumption and improves overall reliability, ensuring efficient performance in any installed sound application. The amplifier also includes Power Factor Correction (PFC) in its power supply, allowing it to maintain maximum efficiency while reducing the overall current draw, regardless of fluctuating input voltage. This makes the DCi 4|300 ideal for installations that require consistent performance even in areas with unstable power grids.

Energy efficiency is a cornerstone of the DCi 4|300, with multiple power-saving modes. The amplifier consumes less than 1W of power in sleep mode, and the auto-standby feature powers the unit down after 30 minutes of no input signal, making it an eco-friendly solution for long-term installations. The unit can also be remotely powered on or off via the AUX port, enabling easy integration into automation and control systems. This makes the DCi 4|300 a smart choice for venues where energy efficiency and environmental responsibility are priorities.

Protection circuitry is built into the amplifier to safeguard both the unit and connected speakers. Crown's patented TLC (Total Linear Control) protection monitors the amplifier's temperature and intelligently reduces gain if necessary to prevent overheating. The advanced protection circuits also protect against shorted outputs, DC offset, mismatched loads, overheating, and over- or under-voltage conditions, ensuring continuous operation in demanding environments. This makes the DCi 4|300 a highly reliable amplifier, capable of handling the toughest installations.

In terms of audio performance, the DCi 4|300 delivers crystal-clear sound with a signal-to-noise ratio greater than 108dB, ensuring precise and clean audio reproduction across all channels. The frequency response is exceptionally flat, with a variation of just ±0.25dB, guaranteeing accurate sound without coloration. The total harmonic distortion (THD) is rated at 0.35%, ensuring high-fidelity audio output. With a damping factor greater than 1000, the amplifier provides tight, controlled bass response, making it ideal for music and voice applications where clarity and precision are essential.

The cooling system in the DCi 4|300 uses a continuously variable-speed forced air fan, directing airflow from front to back. This efficient cooling design ensures that the amplifier remains cool during operation, minimizing the risk of thermal shutdowns, even in challenging installation environments. The fan noise is kept to a maximum of 45 dB, making the amplifier suitable for environments where low noise is essential, such as conference rooms, retail spaces, or houses of worship.

The amplifier is housed in a 2U rackmount chassis, measuring 19 x 14.24 x 3.5 inches and weighing 20.1 lbs. Its compact and lightweight design makes it easy to install in standard racks, saving space while delivering high-performance audio. The DCi 4|300 offers flexible connectivity, with barrier strip outputs for both low-Z and high-Z speaker systems and removable Phnix-style inputs for easy installation. The AUX port provides additional flexibility for monitoring amplifier faults and controlling power remotely, making it ideal for integrators looking to integrate the amplifier into complex control systems.

With its combination of power, efficiency, and reliability, the Crown DCi 4|300 is a versatile and robust amplifier that is perfect for medium-sized installations where high-quality audio and energy efficiency are paramount. Whether used in distributed audio systems or conventional low-impedance speaker setups, the DCi 4|300 offers the flexibility and performance that professional audio integrators demand.

Features

• 300W per channel at 4 ohms, with support for both low-Z and high-Z (70V/100V) systems
• Direct Drive capability eliminates the need for transformers, providing superior audio quality
• Power-saving modes include auto-standby and remote power-off for energy efficiency
• Advanced protection circuits guard against overheating, short circuits, DC offset, and more
• High signal-to-noise ratio (>108dB) for clear and accurate sound reproduction
• Compact 2U rackmount design (19 x 14.24 x 3.5 inches) weighing 20.1 lbs
• Continuously variable-speed forced air cooling with low noise (45 dB max)
• Advanced PFC universal power supply ensures consistent power delivery even in unstable power conditions
• Output Power (Dual Mode): 300W (4, 8 Ohm), 150W (16 Ohm), 300W (70V/100V)
• Output Power (Bridge Mono Mode): 600W (8 Ohm), 600W (140V/200V)
• Frequency Response: ±0.25dB, Total Harmonic Distortion: 0.35%, Damping Factor: >1000

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)
• Frequency Response: ±0.25dB
• Signal to Noise Ratio: >108dB
• Total Harmonic Distortion: 0.35%
• Voltage Gain: 34dB
• Damping Factor: >1000
• Input Impedance: 10kOhm, 5kOhm
• Maximum Input Level (Before Compression): +20dBu
• Maximum Input Level (Before Clipping): +26dBu
• 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
• Cooling: Continuously variable speed forced air, front to back airflow
• Maximum Fan Noise: 45 dB
• Required AC Mains: 100V-240Vrms, 50/60Hz
• IEC Power Connector: 15A IEC
• Weight: 20.1 lbs
• Dimensions: 19 x 14.24 x 3.5 inches