Crown CDi2000 800W Commercial Power Amplifier with DSP 70V / 4 Ohm The Crown CDi2000 800 watt commercial power amplifier delivers an outstanding output while providing the ultimate installation flexibility. With a variety of speaker impedances down to 2 ohms and a 70V mode, the CDi2000 is perfect for almost any install application. In addition, the CDi2000 also features DSP, circuitry protection, a switching power supply, and bridged mode operation.
In a compact 2U chassis, the CDi2000 is able to deliver up to 800 watts per channel at 4 ohms while producing a crisp, clean sound. The amp not only features low impedance configurations, down to 2 ohms, but also has the ability to be used in 70V constant voltage systems. With a commercial audio friendly design, the CDi2000 is perfect for almost any install for restaurants, stores, bars, offices, and warehouses. With Euroblock inputs and barrier strip outputs, the CDi2000 can be easily integrated into a variety of systems.
Featuring protection circuitry against shorts, mismatched loads, DC, open circuits, and overheating, the CDi2000 ensures safe operation. Integrated DSP includes control over adjustable crossovers, EQ, limiting, compression, delay, and subharmonic synthesis.
The CDi Series amplifiers are professional tools designed and built for installed sound applications. The CDi series is rugged and lightweight, while offering unmatched value in their class.
Specifications:
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Channels: 2
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Sensitivity (for full rated power at 8 ohms): 1.4V
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Rated power output: 1000 WPC @ 2 ohms, 800 WPC @ 4 ohms, 475 WPC @ 8 ohms, 800 WPC @ 70V, 1600W @ 8 ohms bridged
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Signal to noise ratio (below rated 1 kHz power at 8 ohms): 100 dB (A-weighted)
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THD:< 0.5%
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Damping factor (20 Hz to 400 Hz): >500
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Frequency response (at 1W, 20 Hz - 20 kHz): + 0 dB, -1 dB
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Crosstalk (below rated power) 20 Hz to 1 kHz: >70 dB
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Input impedance (nominal):20 kohms balanced, 10 kohms unbalanced
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IEC power connector: 15A
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Dimensions: 3.5" H x 19" W x 12.25" D
Constant Voltage (70-Volt) Audio Systems
Audio distribution systems, especially those commonly used in department stores, warehouses, restaurants, etc., require that many loudspeakers be driven from a single audio amplifier over long runs of speaker wire. The "constant voltage" or "high impedance distribution" audio systems can be complex to understand at first, however, provides many advantages. Learn how to design your own 70-volt or 25-volt loudspeaker system.
Crown CDi2000 Manual 
California Prop 65