Crown CDi4000 Two-Channel Commercial Amplifier

High-Power Commercial Amplifier for Installed Audio Systems

The Crown CDi 4000 is a professional two-channel power amplifier built for demanding installed sound environments that require high output, system flexibility, and long-term reliability. Delivering 1200 watts per channel at 4 ohms, this amplifier is designed to drive large speaker arrays in commercial spaces such as warehouses, retail centers, houses of worship, offices, and hospitality venues with consistent, low-distortion audio performance.

Flexible Speaker Compatibility for Complex Installations

Supporting low-impedance speaker systems as well as 70V and 140V constant-voltage configurations, the CDi 4000 adapts easily to a wide range of installation requirements. It can operate in standard dual-channel mode or be configured for bridge-mono operation when higher output power is needed. This versatility allows installers to power multiple speakers efficiently without external transformers.

Integrated Digital Signal Processing for Precise Control

Onboard DSP gives system designers the tools needed to fine-tune performance directly at the amplifier. Adjustable crossover points, equalization, compression, limiting, delay, and subharmonic synthesis allow precise optimization for both music and speech applications. A clear backlit LCD provides real-time feedback and simplifies setup, monitoring, and adjustment during installation.

Advanced Protection for Continuous Operation

The CDi 4000 includes comprehensive protection circuitry to safeguard the amplifier and connected loudspeakers. Protection systems monitor for shorted outputs, open circuits, DC faults, impedance mismatches, thermal overload, and high-frequency stress. These safeguards help ensure dependable operation in commercial installations that run for extended periods.

Rugged Rackmount Design with Global Power Support

Housed in a durable steel chassis, the amplifier occupies 2RU of rack space and is designed for professional equipment racks. A switch-mode universal power supply allows safe operation across worldwide voltage standards, making the CDi 4000 suitable for international projects without additional power conversion hardware.

Installer-Friendly Connections for Clean System Integration

Removable Euroblock inputs and barrier strip speaker outputs provide secure, professional-grade connectivity that supports clean cable management and easy servicing. These connection options make the CDi 4000 straightforward to integrate into both new and existing installed sound systems.