Silent Knight EVS-50W Intelligent 50W Amplifier

Designed to deliver clear, reliable emergency voice messages where they matter most, the Silent Knight by Honeywell EVS-50W Intelligent 50W Amplifier is a purpose-built fire voice evacuation component for commercial and institutional security systems. As a self-contained distributed amplifier, the EVS-50W provides 50 watts of audio power and onsite battery backup to maintain evacuation messaging during power outages, improving occupant safety and minimizing downtime in emergency scenarios.

Installers and system designers benefit from reduced wiring runs and flexible mounting (surface or flush) while security and facilities teams gain supervised operation that meets fire alarm monitoring and notification requirements. The unit supports four supervised speaker circuits out of the box and can be expanded to eight circuits with the EVS-CE4 module, making it ideal for multi-zone applications in schools, hospitals, office buildings, and other critical environments. The EVS-50W integrates directly with Silent Knight voice evacuation panels such as the 5820XLEVS and 6820EVS, simplifying setup and ongoing monitoring within your fire and security infrastructure.

For reliable emergency notification and streamlined installation across your security, surveillance, and monitoring systems, specify the EVS-50W — contact your Silent Knight distributor or add it to your next fire voice evacuation design.

• Boosts emergency audio intelligibility with a dedicated 50W amplifier placed near the hazard zone, improving occupant safety and evacuation response
• Reduces installation time and wiring costs by providing a self-contained, distributed amplifier that can be surface- or flush-mounted
• Ensures reliable operation with supervised circuitry and battery-backed power for continuous emergency notification during power loss
• Flexible zoning with four speaker circuits expandable to eight using the optional EVS-CE4, allowing precise coverage for buildings of any size
• Seamless integration with Silent Knight voice evacuation panels (5820XLEVS, 6820EVS) for simplified system configuration and monitoring
• Scalable design — up to four EVS-50W units can be deployed on a single voice evacuation system to extend coverage across large facilities