CROWN CDi 4000 - Two-channel power amplifier, 1200W @ 4Ω, 70V/140V

CROWN CDi 4000 – Two-channel power amplifier, 1,200 W @ 4 Ω, 70 V/140 V

The CROWN CDi 4000 is a professional installation amplifier in a 2U format, delivering 1,200 W per channel into 4 Ω and directly supporting 2 Ω, 8 Ω loads and 70 Vrms and 140 Vrms constant voltage systems without external transformers. It incorporates a universal switching power supply, an intuitive front-facing LCD display for quick setup and an integrated DSP with crossovers, EQ filters, delay and output limiters. With up to 20 customizable presets , the CDi 4000 provides power, flexibility and advanced control, ideal for commercial, corporate and PA environments.

Main features

• Channels: 2
• Power per channel: 1,200 W @ 4 Ω; 650W @ 8Ω; 1600 W @ 2 Ω dual; 3 200 W bridged mono @ 4 Ω
• Constant voltage: 1,000 W per channel at 70 Vrms; 2,000 W bridged mono at 140 Vrms
• LCD display: front panel configuration and diagnostics
• Power supply: universal 100 – 240 VAC switched
• Integrated DSP: crossovers, input/output EQ, delay and output limiters
• User Presets: Up to 20 savable configurations
• Protections: thermal, overcurrent, short circuit
• Dimensions: 482.6 × 88.9 × 311 mm (W×H×D)
• Net weight: approx. 10 kg.

Product benefits

• Quick start-up: LCD display and presets make setup easy without software.
• Installation flexibility: a single amplifier covers low impedance and constant voltage.
• Sound Quality: High-resolution DSP ensures clarity in music and voice.
• Efficiency and reliability: switching power supply and integrated protections for continuous operation.
• Minimal maintenance: lightweight chassis, internal fan cooling and robust design.

Use cases

• Sound reinforcement in shops, restaurants and offices.
• Public address and voice evacuation networks in educational centers and public facilities.
• Audio distribution in auditoriums, conference rooms, and convention centers.

Frequently Asked Questions

• Can it be used in bridge mode? Yes; in bridged mono it delivers 3,200 W at 4 Ω or 2,000 W at 140 Vrms.
• How do you adjust DSP presets? Using the front panel LCD display.
• Do I need transformers for 70V/140V? No; the output is native constant voltage for both ranges.

Description for projects

2U rack amplifier, 2 channels of 1,200 W @ 4 Ω, DSP with crossovers, EQ, delay and limiters, 20 user presets, front LCD, 100–240 VAC switching power supply, dual output for 70 V/140 V, internal cooling, integrated protections, dimensions 482.6 × 88.9 × 311 mm, weight 10 kg.