Crown CDi DriveCore 4|300BL – 4-Channel Commercial Amplifier with BLU Link & DSP
The Crown CDi DriveCore 4|300BL is a 4-channel commercial amplifier engineered for professional installed sound systems. Powered by Crown’s proprietary DriveCore technology, it delivers high-efficiency performance, network control, and exceptional sound fidelity in a compact 2U design.
Ideal for restaurants, retail stores, offices, and houses of worship, the 4|300BL provides 300 watts per channel and supports direct-drive 70V/100V outputs for high-impedance speakers—no transformers required. Built-in DSP (Digital Signal Processor) offers advanced configuration with 8-band parametric EQ, crossover, delay, and LevelMAX™ limiting to protect your system.
Through HARMAN HiQnet Audio Architect software, you can remotely configure, monitor, and control the amplifier over a standard TCP/IQ network. The BLU link interface lets you send and receive audio channels over HARMAN’s 256-channel fault-tolerant digital BUS, simplifying multi-amp installations.
A convenient front-panel LCD interface allows easy setup and system adjustments, while the GPIO/AUX port enables external control—recall presets, mute channels, monitor faults, and manage power. Each unit comes pre-loaded with JBL speaker tunings for faster integration and consistent audio quality across Crown/JBL systems.
With its powerful DSP, network monitoring, and BLU link connectivity, the Crown CDi DriveCore 4|300BL delivers reliable performance for any small-to-medium installed sound application.
Key Features of the Crown CDi 4|300BL
DriveCore Technology
Crown’s proprietary DriveCore technology reduces hundreds of components inside the amplifier, improving reliability, consistency, and efficiency while delivering exceptional audio fidelity.
Network Control and Monitoring
Through HARMAN’s HiQnet Audio Architect software, the amplifier can be controlled, configured, and monitored over standard TCP/IP networks, giving installers and system managers complete oversight of their audio system.
Advanced DSP Capabilities
The on-board Digital Signal Processor (DSP) enables highly customizable configurations:
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Input Router – Easily manage multiple sources
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Input Delay – Up to 1000ms
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Input Parametric EQ – 8-band
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Crossover – Precision frequency management
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Output Parametric EQ – 8-band
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Output Delay – Up to 100ms
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LevelMAX™ Limiter – Protects speakers and system integrity
BLU link (BL Models Only)
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Send and receive audio channels over HARMAN’s 256-channel, fault-tolerant digital BUS
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Simplifies multi-amplifier setups and reduces cabling complexity
Direct Drive 70/100Vrms Output
Front-Panel Interface
GPIO/AUX Port
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Allows preset recall, muting, fault monitoring, and power control, streamlining installation and operation.
Why Choose the Crown CDi DriveCore 4|300BL?
The 4|300BL is perfect for integrators and installers who need:
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High reliability and consistent audio performance
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Flexibility in small and medium commercial spaces
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Advanced DSP for precise sound management
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Seamless network monitoring and control
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Pre-loaded JBL speaker tunings for faster setup
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BLU link for multi-amplifier audio routing
With its combination of power, efficiency, and ease of use, the Crown CDi DriveCore 4|300BL is an ideal solution for restaurants, retail environments, offices, houses of worship, and professional audio installations.
Crown CDi 4|300BL Specifications
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BLU link
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Channels
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4
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Sensitivity (for full rated power at 8 ohms)
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0.7V RMS
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Rated Power Output (per channel @ 4 ohms)
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300W
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Analog Input Signal to Noise Ratio (ref. rated power, 100V, 20Hz - 20kHz) at 8 ohms)
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> 104dB
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THD (full rated power, 20 Hz - 20 kHz)
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0.35%
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Damping Factor (20 Hz to 100 Hz)
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> 1000
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Frequency Response (8Ω, 20 Hz - 20 kHz)
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+/-0.5dB
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Crosstalk (below rated power) 20 Hz to 1 kHz
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> 80dB
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Input Impedance (nominally balanced, nominally unbalanced)
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20 kΩ balanced, 10 kΩ unblanced
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Dimensions (inches) (W x H x D) (depth not including 1.3 inch front panel protrusion)
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19 x 3.5 x 12.25
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Weight
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16.13 lbs (7.31 kg)
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Power Supply Connector
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"Standard IEC type 320 inlet for detachable connector 100 – 240V~"
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