Flexible Power Distribution: The D 20:4L provides 2,000 watts across four output channels. Rational Power Management allows reallocating power as needed, giving designers unmatched system flexibility. This ensures maximum performance without oversizing equipment or wasting capacity.

Advanced Lake DSP: Integrated Lake processing delivers precise crossover filters, EQ, delay, and LimiterMax limiters. These tools allow optimal loudspeaker management, consistent sound clarity, and industry-leading protection. Raised Cosine MESA EQ filters give installers detailed control over system tuning.

Dante Networking with AES67: The amplifier features 8×8 dual redundant Dante networking with AES67 support. Automatic failover ensures uninterrupted audio distribution in mission-critical systems. Dante Controller and Lake Controller software simplify configuration and remote monitoring.

Multi-Format Audio Inputs: The D 20:4L supports analog, AES3 digital, and Dante inputs. Four Iso-Float analog inputs guarantee clean signals, while four AES digital inputs support up to 192 kHz at 24-bit resolution. Input redundancy secures audio reliability.

Energy Efficiency and Protection: Energy-saving features include power factor correction, regulated switch-mode supply, auto power-down, and adaptive rail control. Breaker Emulation Limiter safeguards mains systems, while Under-Voltage Limiting maintains performance during unstable power conditions. Protection systems extend amplifier lifespan and reduce operational costs.

System Monitoring and Integration: Built-in load monitoring and surveillance support voice alarm and mass notification systems. The CAFE software suite predicts energy usage, heat, and required amplifier quantities. Integration with third-party control systems like Q-Sys and MediaMatrix expands system compatibility.

Rugged, Installer-Friendly Design: The slim 1U chassis simplifies rack installation. Phoenix connectors, dual RJ-45 Dante ports, and detachable IEC mains plugs provide flexible connectivity. A removable dust grille improves airflow and allows easy maintenance. Front-panel mute buttons with LED indicators provide quick, direct control.

Specifications:

• Channels: 4

• Total Power: 2000 W (RPM scalable per channel)

• Output Power (per channel): 500 W @ 2–8Ω, 425 W @ 16Ω, 250–500 W Hi-Z (25/70/100V)

• Max Single Channel Output: Up to 1600 W @ 4Ω

• DSP: Lake processing with EQ, crossover, delay, LimiterMax peak and RMS limiters

• Networking: Dual redundant Dante (8×8) with AES67 support

• Inputs: 4 analog Iso-Float, 4 AES digital, 8 Dante

• Redundancy: Automatic failover and dual input redundancy

• Protection: BEL, UVL, current limiting, temperature regulation, short circuit, DC protection

• Software: CAFE with ESP for system planning and configuration

• Chassis: 1U rackmount, removable dust grille, Phoenix connectors, detachable IEC mains cable

• Weight: 7.9 kg (17.3 lbs)

• Dimensions: 483 × 44 × 425 mm (W × H × D)