CROWN DCi 4|300 - Four-channel analog power amplifier, 300W @ 4Ω, 70V/100V

CROWN DCi 4|300 – Four-channel analog power amplifier, 300 W @ 4 Ω, 70 V/100 V

The CROWN DCi 4|300 is a four-channel analog installation amplifier delivering 300W per channel into 4Ω and directly handling constant voltages of 70Vrms and 100Vrms without external transformers. Designed with patented DriveCore™ technology, it offers over 90% efficiency and a 2U form factor for maximizing rack power density. Each channel can be independently configured in Hi-Z or Lo-Z mode via rear DIP switches, and channel pairs are bridgeable for subwoofer or higher power applications.

Main features

• Power per channel: 300 W @ 4 Ω; 150W @ 2Ω; 300W @ 8Ω; 300W @ 70Vrms; 300W @ 100Vrms
• Mono bridge mode: 600 W @ 8 Ω; 600W @ 16Ω; 600W @ 140Vrms; 600W @ 200Vrms
• Frequency response: ± 0.25 dB from 20 Hz to 20 kHz
• Total Harmonic Distortion (THD): 0.35% at full power (20 Hz–20 kHz)
• Damping factor: > 1000 (20 Hz–100 Hz)
• Hi-Z/Lo-Z selection: Channel-by-channel DIP switches for low impedance or constant voltage
• Bridgeable channels: Channel pairs can be combined even in 100 Vrms subwoofer mode
• Cooling: Variable speed forced ventilation, front-to-back flow; maximum noise 45 dBA @ 1 m
• Power supply: Universal 100–240 VAC, 50/60 Hz with active power factor correction (PFC); IEC 15 A connector

Product benefits

• High power density: four 300W channels in just 2U of rack space, optimizing space and infrastructure.
• Installation versatility: direct output in low impedance or constant voltage without additional transformers.
• Independent configuration: Hi-Z/Lo-Z modes and bridgeable channel to accommodate various speaker loads.
• Energy efficiency: DriveCore™ technology and active PFC reduce consumption and dissipated heat.
• Quiet Operation: Variable speed ventilation minimizes noise in critical environments.

Use cases

• Audio distribution in conference rooms, auditoriums, and convention centers.
• Public address and voice evacuation systems in hotels, airports, and hospitals.
• Corporate and commercial installations with multiple zones and audio presets.

Frequently Asked Questions

• How do you select constant voltage? Via rear DIP switches, channel by channel, without the need for external transformers.
• Can I bridge channels? Yes; combine output pairs to achieve 600 W @ 8 Ω or 140 Vrms.
• What is the noise level of the fans? Maximum 45 dBA at 1 m, thanks to variable-speed forced cooling.

Description for projects

300W @ 4 Ω (150W @ 2 Ω; 300W @ 8 Ω; 300W @ 70/100 Vrms) four-channel 2U rack amplifier, Hi-Z/Lo-Z selectable, bridgeable channels, front-to-back cooling, active PFC, 483×89×362 mm, 9.12 kg.