Description
Audio professionals in search of a cost-effective professional audio amplifier will be impressed with the Crown Audio CDi 4|300BL, a 4-Channel DriveCore Series power amplifier that utilizes technology derived from the flagship Crown DriveCore Install series amplifiers, providing an impressive mix of high-performance, rich feature set, and competitive cost. The CDi 4|300BL offers streamlined functionality for most small- to medium-sized installations such as restaurants, retail stores, and more.
The CDi 4|300BL comes with BLU link, adding the ability to send and receive channels over HARMAN’s digital audio BUS. The amplifier is capable of driving up to 70/100 Vrms speaker loads without requiring a transformer and comes pre-loaded with JBL speaker tunings to help make installations quicker and easier. The CDi 4|300BL features an Ethernet port for using HARMAN’s HiQnet Audio Architect software for configuration and operation over a standard TCP/IQ network. The rear panel includes terminal block inputs and barrier strip outputs.
At a Glance
Patented DriveCore integrated circuit combines hundreds of discrete circuits into one chip for better performance, lower power consumption, and improved reliability
Supports configuration and control using HiQnet Audio Architect
Monitoring and control over TCP/IP
Color 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, LevelMAX limiters)
Support for importing of FIR filter coefficients
20 device presets—1 factory and 19 user
96 kHz/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
70/100Vrms 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/undervoltage, and high-frequency overload
Three-year, no-fault transferable warranty—your investment is fully protected
Complies with GreenEdge by HARMAN—environmentally friendly practices in design, manufacturing, and packaging complement energy-efficient operation
Support for BSS Audio Soundweb Contrio Ethernet wall controllers
Included speaker tuning for various JBL speaker models
Network Control and Monitoring
Through HARMAN’s HiQnet Audio Architect software, the CDi DriveCore can be controlled, configured, and monitored through standard TCP/IQ network.
DSP
Onboard Digital Signal Processor in each amplifier allows for custom configuration and includes these integrated features:
Input Router
Input Delay—up to 1000ms
Input Parametric EQ—8 band
Crossover
Output Parametric EQ—8 band
Output Delay—up to 100ms
LevelMAX Limiter
BLU link
Both receive and send channels over Harman’s 256 channel, fault-tolerant audio BUS, BLU link.
Direct Drive 70/100 Vrms Output
Each output channel is capable of providing either 70 or 100V for high-impedance applications.
Front-Panel Interface
Completely configure the amplifier using an intuitive front-panel interface.
GPIO / Aux Port
Recall presets, mute channels, monitor faults, power on/off the amplifier, and more through a combined GPIO/AUX Port.
Pre-Loaded Speaker Tunings
For quicker and easier setup and installation.
Amplifier
Number of Channels 4
Power Rating
4 Ohms / 8 Ohms / 70 V / 100 V:
300 W per Channel
2 Ohms / 16 Ohms:
150 W per Channel
2 Ohms:
300 W Bridged
4 Ohms / 8 Ohms / 140 V / 200 V:
600 W
Load Impedance / Voltage
Stereo:
2 / 4 / 8 / 16 Ohms per Channel
70 / 100 V per Channel
Bridged:
4 / 8 / 16 Ohms
140 / 200 V
Performance
Protections DC Fault, Low Impedance, Open Circuit, Overcurrent, Overvoltage, Ultrasonic, Undervoltage
Frequency Response 20 Hz to 20 kHz ±0.5 dB (8 Ohms)
Damping Factor > 1000
Input Sensitivity
Line:
0.7 Vrms to 2.5 Vrms / -.8 dBu to 10.2 dBu (at 8 Ohms)
1 Vrms to 3.5 Vrms / 2.2 dBu to 13.2 dBu (at 70 V)
1.4 Vrms to 5 Vrms / 5.2 dBu to 16.2 dBu (at 100 V)
Input Impedance
20 Kilohms (Balanced)
10 Kilohms (Unbalanced)
Max Gain 34 dB (at 4 Ohms, at 8 Ohms, at 70 V, at 100 V)
Max Input Level +20 dBu
SNR > 104 dB
THD 0.35% (at Rated Power)
Intermodulation Distortion ≤ 0.35%
Crosstalk > 80 dB (Below Rated Power)
CMRR > 70 dB
Signal Processing
DSP 32-Bit Floating Point DSP at 96 kHz
Audio Delay Adjustable Up to 1000 ms per Channel
Crossover
High-Pass:
16 to 20 kHz, 12/24/48 dB/Octave Bessel
High-Pass:
16 to 20 kHz, 6/12/24/48 dB/Octave Butterworth
High-Pass:
16 to 20 kHz, 12/24/48 dB/Octave Linkwitz-Riley
Low-Pass:
16 to 20 kHz, 12/24/48 dB/Octave Bessel
Low-Pass:
16 to 20 kHz, 6/12/24/48 dB/Octave Butterworth
Low-Pass:
16 to 20 kHz, 12/24/48 dB/Octave Linkwitz-Riley
EQ 8-Band Parametric EQ per Channel
Limiting Yes
Connectivity
Analog Audio I/O
2 x Block 6-Pin Balanced Line Input
2 x Barrier Strip 4-Pin Speaker Output
Digital I/O
1 x RJ45 Ethernet Input/Output (Control)
2 x RJ45 BLU-Link Input/Output (Control, I/O, Link, Network)
USB None
Mobile App Compatible
Yes
*As of December, 2022: Check with manufacturer for the most up-to-date compatibility
Power
AC Input Power
Universal:
100 to 240 VAC, 50 / 60 Hz
AC Power Connector 1 x IEC 15 A / NEMA 5-15
Current Consumption
120 VAC:
1.8 to 2.6 A (1/8 Power)
3.5 to 5 A (1/3 Power)
230 VAC:
1 to 1.4 A (1/8 Power)
1.8 to 2.8 A (1/3 Power)
Power Consumption
120 VAC:
127 to 160 W (1/8 Power)
166 to 239 W (1/3 Power)
230 VAC:
141 to 173 W (1/8 Power)
180 to 239 W (1/3 Power)
Physical
Display & Indicators
Front Panel:
1 x Multi-Color Graphic LCD
Rackmount Size 2 RU
Cooling Fan (Variable Speed)
Thermal Dissipation 814 BTU/hr (Maximum)
Dimensions 19.0 x 3.5 x 12.2″ / 48.3 x 8.9 x 31.1 cm
Weight 16.1 lb / 7.3 kg
