Crown Audio CDi 4000 instruction

CDi 4000

C D i S E R I E S

Architectural & Engineering Speciﬁcations

CDi 4000

The Crown® CDi 4000 power ampliﬁer shall be a solid-state two-channel model with a switch-mode universal power supply.

The outputs shall be usable as dual or bridged-mono modes of operation. The bridged-mono mode shall bridge the outputs to provide increased output voltage.

Front panel controls and indicators shall include the following: 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 shall be used to access menu items and front panel lockout.

LCD Screen: Backlit liquid crystal display shows speaker presets and signal processing.

Signal Indicator: Green LED, one per channel, illuminates 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 Indicator: Red LED, one per channel, illuminates under excessive tem- perature conditions.

Power Indicator: Blue LED illuminates when the ampliﬁer has been turned on and has power.

Rear panel controls and connectors shall include the following: 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 louspeak- ers or bridge-mono loudspeaker. Dual connectors shall work with 2-8 ohm or 70V loads. Bridge-mono connectors shall work with 4-8 ohm or 140V loads.

HiQnet USB Connector: Type B, connects to a USB port on a PC.

The ampliﬁer shall have the following speciﬁcations:

Output Power with 0.5% THD: 2 ohm Dual (per channel): 1,600W with 1% THD,

4 ohm Dual (per channel): 1200W, 8 ohm Dual (per channel) 650W, 4 ohm

Bridge-Mono: 3,200W with 1% THD, 70V Dual (per channel): 1,000W, 140V

Bridge-Mono: 2,000W.

Voltage Gain at 1kHz, 8 ohm rated output: 34.2 dB.

Frequency Response: +0/–1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Dual mode, 4 to 16 ohms in Bridge-Mono mode.

Sensitivity: 1.4V.

Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 100 dB (A weighted).

Damping Factor: Better than 500 from 20 Hz to 400 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.

Input Stage: Input is electronically balanced and employs precision 1% resis- tors.

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, 220-240V, 50/60 Hz.

AC Line Current: 11.75A.

At Idle: Draws no more than 45 watts.

Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condens- ing).

The DSP section shall have the following speciﬁcations:

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.

Protection shall include the following:

CDi-Series ampliﬁers shall be 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

The chassis shall be steel. Cooling shall be by a proportional speed fan with front-to-rear airﬂow.

Dimensions shall be EIA Standard 19-in. rack mount width (EIA RS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mounting surface.

Net weight shall be 19 lb (8.6 kg). Shipping weight shall be 22 lb (10.0 kg).

The ampliﬁer shall be designated the Crown CDi 4000.

Crown International 1718 W. Mishawaka Rd. Elkhart, IN 46517-9439 TEL: 574-294-8200 FAX: 574-294-8FAX www.crownaudio.com

Speciﬁcations subject to change without prior notice. Latest information available at www.crown- audio.com.

Crown and Crown Audio are registered trademarks of Crown International, Inc. Printed in U.S.A.

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CDi 4000 specifications

Crown Audio, a well-respected name in professional audio equipment, has made a significant mark with its CDi 4000 amplifier. Designed for a variety of applications, the CDi 4000 is renowned for its reliability, sound quality, and innovative features. It caters to live performances, installations, and commercial audio needs, establishing itself as a versatile solution for audio professionals.

At the heart of the CDi 4000 lies its powerful amplifier design. It delivers a substantial output of 4000 watts, providing ample power for driving large speakers in demanding environments. The amplifier is built to handle varying loads with ease, boasting a robust architecture that ensures optimal performance even under high stress. This makes it an ideal choice for venues such as theatres, concert halls, and various event spaces.

One of the standout features of the CDi 4000 is its advanced DSP (Digital Signal Processing). Users can access a broad range of processing options, including EQ, crossover, delay, and limiting. This flexibility allows for precise sound optimization tailored to specific environments and requirements. The user-friendly interface makes it easy to navigate through settings, ensuring that audio professionals can quickly adjust configurations as needed.

The Crown CDi 4000 incorporates a lightweight yet durable design, making it easy to transport while remaining rugged enough to withstand the rigors of touring and permanent installations. Additionally, its efficient cooling system minimizes overheating, ensuring uninterrupted performance during long sessions.

Connectivity is another key feature of the CDi 4000. The amplifier offers multiple input and output options, including XLR connectors, making it compatible with a wide range of audio sources and speakers. This versatility streamlines the integration process, allowing users to connect various devices without the need for extra adapters.

Furthermore, the amplifier includes built-in network capabilities for remote monitoring and control. This feature enhances operational efficiency, allowing sound engineers to manage their equipment from a distance, monitor performance levels, and make real-time adjustments during events.

In summary, Crown Audio’s CDi 4000 is a powerful and adaptable amplifier that excels in performance and durability. With its advanced features, efficient design, and user-friendly interface, it meets the demands of audio professionals across diverse applications, ensuring exceptional sound quality and reliability in any setting.