Crown CDi 4|300BL Power Amplifier

The Crown CDi DriveCore 4|300BL offers streamlined functionality to work in almost any small/medium sized installation such as restaurants, retail stores, and more. 

Designed for ease-of-use in a variety of applications, the 4|300BL is a 4-channel amp that includes network control/monitoring, high-level DSP, front-panel interface, and support for driving up to 100Vrms speaker loads without requiring a transformer. 

The 4|300BL also comes with BLU link, adding the ability to send and receive channels over HARMAN’s digital audio BUS.

The entire CDi DriveCore line comes pre-loaded with JBL speaker tunings to help make installations quicker and easier.

Features:

• Exclusive multi-patented DriveCore™ Technology
• BLU link digital audio transport – Up to 256 Channels of digital audio over Category 5e cabling
• Supports configuration and control using HiQnet® Audio Architect™
• Monitoring and control over TCP/IP
• Colour LCD and front panel user interface for amplifier configuration, control, and monitoring
• Programmable GPIO (general purpose input/output) control port
• Digital signal processing (Input/output EQ filters, crossover, input/output delay, LevelMAXTM limiters)
• Support for importing of FIR filter coefficients
• 20 device presets – 1 factory and 19 user
• 96kHz/32-bit floating-point signal processing
• Universal power supply with PFC for reduced current draw and industry-leading efficiency
• Power saving modes
• Remote power off – Sleep mode activated via AUX port
• 70Vrms/100Vrms direct drive
• Each channel independently configurable for low z or high z operation
• Advanced protection circuits – Amplifier and loads are protected against shorted outputs, DC, mismatched loads, overheating, over/under-voltage, and high-frequency overload
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Specification:

General

• Digital Signal Processing 96kHz, 32-bit floating point
• Voltage Gain (at maximum level setting) 4/8Ω, 70Vrms and 100Vrms Operation: 34dB
• Frequency Response (8Ω, 20Hz - 20kHz): ±0.5dB
• BLU link Signal-to-Noise Ratio (ref. rated power, 100V, 20Hz - 20kHz): >108dB
• Total Harmonic Distortion (at full rated power, from 20Hz - 20kHz): 0.35%
• Analog Input Signal to Noise Ratio (ref. rated power, 100V, 20Hz - 20kHz): >104dB
• Intermodulation Distortion (60Hz and 7kHz at 4:1, from - 30dB to full rated power): ≤0.35%
• Damping Factor (20Hz to 100Hz): >1000
• Crosstalk (below rated power, 20Hz to 1kHz): >80dB
• Common Mode Rejection (20Hz to 1kHz, typical): >70dB
• DC Output Offset (with inputs shorted): ±10mV
• Input Impedance (Nominally balanced, nominally unbalanced): 20 kΩ balanced, 10 kΩ unbalanced
• Maximum Input Level (Low Amp Gain Mode): +20dBU
• Required AC Mains (±10%): 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 – 240 V~
• Load Impedance Stereo/Dual Mode: 2Ω - 16Ω; 70Vrms and 100Vrms
• Load Impedance Bridge Mono: 4Ω - 16Ω; 140Vrms and 200Vrms
• Maximum Fan Noise (re dB SPL @ 1M): 51dBA

Physical & Dimensions

• Height: 3.5inch
• Width: 19inch
• Depth: 12.25inch
• Weight: 7.31kg