Crown CDi 4000 Power Amplifier

The Crown CDi series includes three models which are identical except for output power: CDi 1000, CDi 2000 and CDi 4000. All three are rugged and lightweight, and offer unmatched value in their class.
''CDi'' stands for Contractor Digital Intelligence - geared with contractors in mind for commercial installed sound applications.


Proven Crown performance, for installed systems :
The Crown® CDi 4000 power amplifier is a professional tool designed and built for installed sound applications. Rugged and lightweight, it offers incredible value in its class. It features an intuitive front-panel LCD screen to guide installers through configurations, and also offers onboard DSP for loudspeaker signal processing. Other features include a switch-mode universal power supply, useful function indicators, proportional-speed fan-assisted cooling, removable Phoenix-style inputs, barrier strip outputs for low-Z or 70V/140V loads, short-circuit protection and more. Your investment in a Crown CDi-Series power amplifier is backed by Crown's Three-Year, No-Fault, Fully Transferable Warranty.


Crown CDi 4000 CDi Series Power Amplifier - 1,600 Watts per channel at  2 Ohms

Output  Power :
2 Ohm Stereo (Per Channel): 1,600W
4 Ohm Stereo (Per Channel): 1,200W
8 Ohm Stereo (Per Channel): 650W
4 Ohm Bridged-Mono: 3,200W
70V Stereo (Per Channel): 1,000W
140V Bridged-Mono: 2,000W


Crown CDi 4000 CDi Series Power Amplifier Features :

• Accurate, uncolored sound with very low distortion for the best in music and voice reproduction
• Extremely versatile; rated for 2, 4, 8 ohm loads and 70V and 140V outputs
• Advanced protection circuitry guards against: shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency overloads and internal faults
• Intuitive front-panel LCD screen for quick, easy configuration
• Switch-mode universal power supply
• Onboard digital signal processing includes crossovers, EQ filters, delay, and output limiting
• Up to 20 user defined DSP presets are available
• Fills 2U rack spaces and weighs under 19 pounds
• Barrier strip outputs for low-Z or 70V/140V loads, removable Phoenix-style inputs
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications

Crown CDi 4000 CDi Series Power Amplifier Specifications :

• Voltage Gain at 1kHz, 8 Ohm rated output:
•       CDi 1000: 30.5 dB
•       CDi 2000: 32.9 dB
•       CDi 4000: 34.2 dB
• Frequency Response: ±0.25 dB from 20 Hz to 20 kHz at 1 Watt into 4 Ohms.
• Phase Response (at 1 Watt, 20 Hz to 20 kHz): ±15°.
• Load Impedance: Safe with all types of loads. Rated for 2 to 8 Ohms in Stereo mode, 4 to 16 Ohms in Bridge-Mono mode.
• Sensitivity: 1.4V.
• Signal to Noise Ratio (below rated 8-Ohm power at 1 kHz): 105 dB (A weighted).
• Damping Factor: Better than 500 from 20 Hz to 500 Hz.
• Crosstalk: > 80 dB below rated power, 20 Hz to 1 kHz.
• Common Mode Rejection (CMR): > 45 dB from 20 Hz to 1 kHz.
• Input Stage: Input is electronically Balanced and employs precision 1% resistors.
• Input Impedance (nominal): 20 k Ohms, Balanced;10 k Ohms, Unbalanced.
• Maximum Input Signal: +22 dBu typical.
• AC Line Voltage and Frequency Configurations Available: 100V, 120V-240V, 50/60 Hz.
• AC Line Current:
•       CDi 1000: 11.50A
•       CDi 2000: 11.93A
•       CDi 4000: 11.75A
•       At Idle: Draws no more than 90 Watts.
•  Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing).

DSP Section :

• Input EQ: 6 parametric filters per channel with adjustable Q, ±15 dB boost/cut. Also adjustable high and low shelving filters. This 8-Filter EQ section can be bypassed.
• Crossover Filters: Highpass and Lowpass per channel. Butterworth 6/12/18/24 dB per octave and Linkwitz-Riley 24/48 dB per octave. Also includes ±15 dB bandpass Gain and polarity control.
• Output EQ: 8 parametric filters per channel with adjustable Q, ±15 dB boost/cut. This 8-Filter EQ section can NOT be bypassed. Filters are enabled individually.
• Delay: Up to 50 msec total delay per channel.
• Output Limiter: Prevents Clipping and protects loudspeakers. Choice of –3, –6, or –12 dB threshold per channel.
• Presets: 20 presets. 19 are user-definable.

Front Panel Controls and Indicators :

• Level: Detented rotary level control, one per channel.
• Power Switch: On/off switch applies AC power to the Amplifier.
• Sel/Prev/Next Buttons: Three buttons near the LCD screen are used to access menu items.
• LCD Screen: Backlit Liquid Crystal Display shows speaker presets and signal processing.
• Signal Indicator: Green LED, one per channel, flashes when a very low-level signal is present at input.
• –10 Indicator: Green LED flashes when output signal exceeds –10 dB below clip.
• –20 Indicator: Green LED flashes when output signal level exceeds –20 dB below clip.
• Ready Indicator: Green LED, one per channel, illuminates when the Amplifier is ready to produce audio.
• Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion.
• Temp/Fault Indicator: Red LED, one per channel, illuminates under Fault or excessive temperature conditions.
• Power Indicator: Blue LED illuminates when the Amplifier has been turned on and has power.

Rear Panel Controls and Connectors :

• AC Line Connector: NEMA 5-15P (15A).
• Input Connector: Two 3-pin removable Phoenix-type connectors each accept a Balanced Line-Level input signal.
• Output Connectors: 4-position barrier strip with connectors for dual loudspeakers or bridge-Mono loudspeaker. Dual connectors work with 2-8 Ohm or 70V loads. Bridge-Mono connectors work with 4-8 Ohm or 140V loads.
• HiQnet USB Connector: Type B, connects to a HiQnet network.

Protection :

• CDi-Series amplifiers are protected against shorted, open or mismatched loads; overloaded power supplies; excessive temperature; chain destruction phenomena; excessive output current, and input overload damage. They also protect loudspeakers from input/output DC, large or dangerous DC offsets and turn-on/turn-off transients.

Crown CDi 4000 CDi Series Power Amplifier Construction :

• Chassis : Steel.
• Cooling : Proportional speed fan with front-to-rear airflow.
• Dimensions : 19" width x 3.5" high x 12.25" deep.
• Net Weight : 19 lbs
• Shipping Weight : 22 lbs