Silent Knight EVS-125W Intelligent 125W Amplifier

The EVS-125W Intelligent 125-Watt Fire Alarm Voice Evacuation Amplifier is a professional emergency communication component designed to amplify and distribute voice evacuation messages throughout compatible fire alarm systems. Featuring 125 watts of audio output power, four onboard speaker circuits, and intelligent supervision, this amplifier supports dependable emergency voice announcements in commercial, institutional, and large-building installations.

Designed as a self-contained distributed amplifier, the EVS-125W can be installed near the areas requiring emergency voice coverage. This configuration helps reduce speaker wiring distances, simplify system layout, and support efficient installation across larger facilities.

The amplifier provides four integrated speaker circuits that can be expanded to eight using an optional EVS-CE4 audio circuit expansion module. Up to four EVS-125W amplifiers can be installed within a supported voice evacuation system, providing a combined nominal amplifier capacity of up to 500 watts.

Each amplifier communicates through an addressable SBUS interface and is supervised by the main fire alarm control panel for supported trouble conditions. This helps system operators identify amplifier faults and maintain visibility into the emergency communication infrastructure.

The EVS-125W features an integrated power supply with battery backup capability to support emergency operation during a loss of primary power, subject to the installed battery configuration and system requirements.

Its red enclosure supports both surface-mounted and flush-mounted installation, offering flexibility for different building layouts.

Designed for compatibility with the 6820EVS and 5820XL-EVS fire alarm control panels, the EVS-125W provides scalable audio amplification for emergency voice evacuation and fire alarm communication systems.

10 Key Features

1. 125-Watt Audio Output: Provides 125 watts of amplifier power for compatible emergency voice evacuation speaker systems.

2. Four Onboard Speaker Circuits: Includes four integrated audio circuits for distributing emergency voice messages.

3. Expandable to Eight Speaker Circuits: Supports an optional EVS-CE4 expansion module for additional speaker circuit connections.

4. Intelligent SBUS Addressing: Provides addressable communication with compatible fire alarm control panels.

5. Multi-Amplifier System Support: Allows up to four compatible 125W amplifiers per supported voice evacuation system.

6. Distributed Amplifier Design: Enables installation closer to protected areas to reduce speaker wiring requirements.

7. Supervised Operation: Supports monitoring of amplifier trouble conditions through the main control panel.

8. Integrated Power Supply: Includes an internal power supply designed for supported emergency voice system applications.

9. Battery Backup Capability: Supports standby battery operation when configured with the required batteries.

10. Flexible Mounting Options: Supports flush-mounted or surface-mounted installation.