CROWN DCi 4|600U - Four-channel analog power amplifier, 600W @ 4Ω, 70V/1

CROWN DCi 4|600U – Four-channel analog power amplifier, 600 W @ 4 Ω, 70 V/100 V

The CROWN DCi 4|600U is a four-channel, independent analog installation amplifier rated at 600W per channel into 4Ω and capable of directly driving 2Ω, 8Ω, and 70Vrms or 100Vrms constant voltage loads without the need for external transformers. Based on DriveCore™ technology, it delivers over 90% efficiency in a 2U chassis for maximum rack-mount power density. Its universal power supply with active Power Factor Correction (PFC) and variable speed forced cooling ensure reliable, quiet operation, while rear DIP switches allow independent selection of Hi-Z/Lo-Z mode per channel. Additionally, channel pairs are bridgeable for subwoofer applications or higher power loads.

Main features

• Power per channel: 600 W @ 4 Ω; 600W @ 8Ω; 300W @ 2Ω; 600W @ 70Vrms; 600W @ 100Vrms
• Mono bridge mode: 1200 W @ 8 Ω; 1200 W @ 16 Ω; 1200 W @ 140 Vrms; 1 200 W @ 200 Vrms
• Hi-Z/Lo-Z Selection: Independent rear DIP switches per channel for 2 Ω–16 Ω or 70 V/100 V
• True Rack Density: four high-power channels in just 2U of rack space
• Cooling: Variable-speed front-to-back forced ventilation; maximum noise 45 dBA @ 1 m
• Power supply: Universal 100–240 VAC, 50/60 Hz with active PFC; IEC 15 A connector
• LED indicators: power, signal, clip and fault on the front panel
• Protections: thermal, overcurrent, short circuit and output limiting

Product benefits

• High power density: 2U configures four 600W channels for compact racks.
• Installation versatility: direct outputs in low impedance or constant voltage without transformers.
• Independent configuration: Hi-Z/Lo-Z selection and bridgeable channels via DIP switches.
• Efficiency and reliability: DriveCore™ with active PFC reduces consumption and dissipated heat.
• Quiet Operation: Variable speed ventilation minimizes noise in critical environments.

Use cases

• Public address and background music installations in hotels, shops, and airports.
• Audio systems in auditoriums, conference rooms, and convention centers.
• Reinforcement of high-performance subwoofers and speakers with bridged channels.

Frequently Asked Questions

• How do you select 70V/100V? Using the rear DIP switches on a channel-by-channel basis, without additional transformers.
• Can I bridge channels? Yes; combine channel pairs for up to 1,200 W in bridged mono mode.
• What is the operating noise level? Maximum 45 dBA at 1 m thanks to variable-speed forced ventilation.

Description for projects

2 U rack amplifier, four 600 W @ 4 Ω channels (300 W @ 2 Ω; 600 W @ 8 Ω; 600 W @ 70 V/100 V), 1 200 W @ 8 Ω bridge mode, Hi-Z/Lo-Z selection, DIP switches, front-to-back cooling, active PFC, LED indicators, dimensions 483 × 89 × 362 mm, weight 9.12 kg.