Crown Audio CDi 1000 instruction

CDi 1000

C D i S E R I E S

Architectural & Engineering Speciﬁcations

CDi 1000

The Crown® CDi 1000 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): 700W with 1% THD,

4 ohm Dual (per channel): 500W, 8 ohm Dual (per channel) 275W, 4 ohm

Bridge-Mono: 1,400W with 1% THD, 70V Dual (per channel): 500W, 140V

Bridge-Mono: 1,000 W.

Voltage Gain at 1kHz, 8 ohm rated output: 30.5 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 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): 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: 11.5A.

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 1000.

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.

2/07

139681-1D

CDi 1000 specifications

The Crown Audio CDi 1000 is a versatile power amplifier designed to meet the demanding needs of professional audio applications. It is well-regarded for its reliability, flexibility, and performance, making it ideal for installation in a variety of contexts, including live sound, theater productions, and fixed installations.

One of the standout features of the CDi 1000 is its robust power output. It delivers up to 1000 watts of power per channel at 8 ohms and 1500 watts per channel at 4 ohms, ensuring that it can drive a wide range of loudspeakers effectively, even in larger venues. This high output capability does not come at the expense of sound quality; the amplifier is engineered to provide clean and accurate audio reproduction, essential for professional sound applications.

The Crown Audio CDi 1000 incorporates advanced technologies that enhance both its performance and usability. One significant feature is its integrated digital signal processing (DSP), allowing users to tailor the audio signal to suit their specific requirements. This DSP section includes customizable equalization, crossover settings, and delay adjustments, making it easier for users to optimize their sound systems for different environments and applications.

In terms of connectivity, the CDi 1000 offers a range of options to ensure compatibility with various audio sources. It features both XLR and 1/4-inch TRS inputs, allowing for flexibility in connecting to mixers and other audio equipment. Furthermore, the amplifier includes both balanced and unbalanced outputs, making it easier to integrate into existing sound systems.

Another characteristic that sets the CDi 1000 apart is its user-friendly interface. The front panel includes LED indicators for power, signal, and clipping, providing a clear visual reference for the amplifier's status during operation. Additionally, the amplifier is housed in a sturdy rack-mountable chassis, designed for easy installation in professional audio racks.

Crown has also prioritized thermal management in the design of the CDi 1000. It features a highly efficient cooling system, ensuring that the amplifier operates coolly during extended use. This design consideration enhances the longevity and reliability of the unit, providing peace of mind for sound professionals who rely on consistent performance.

In conclusion, the Crown Audio CDi 1000 is a powerful, feature-rich amplifier that combines high output, advanced technologies, and robust construction. Whether for live sound venues or fixed installations, its performance and versatility make it a preferred choice for audio professionals seeking a reliable solution for their amplification needs.