Silent Knight Intelligent 125W Amplifier EVS-125W
Voice evacuation, amplified in place.
The EVS-125W is an intelligent 125 watt amplifier for the 5820XLEVS or 6820EVS. It amplifies the audio message for distribution throughout the facility.

Your voice message has to reach the whole facility.
A voice evacuation system depends on its amplifiers to carry the audio message. The EVS-125W is designed as a self-contained distributed amplifier.
Built for voice evacuation systems
The EVS-125W adds supervised amplifier capacity to a compatible Silent Knight panel.
SBUS addressable
Connects over the SBUS, with up to four EVS-125w per system.

Amplifier output
An intelligent 125 watt amplifier for the 5820XLEVS or 6820EVS.
Supervised operation
Each EVS-125W is supervised.
Four audio circuits
Four onboard audio circuits can be expanded to eight with the EVS-CE4.
Wire harness connection
An easy to install wire harness connects the ECS-CE4 audio circuit expander.
Everything you need to know.
| Brand | Silent Knight |
| Model | 125W |
| Product Type | Fire Amplifier |
| Compatibility | 6820EVS 5820XL-EVS |
| Input Voltage | 120V AC |
| Power Source | Battery |
| Mount Type | Flush Mount |
| Height | 26.3" |
| Width | 16.0" |
| Depth | 4.1" |
| Color | Red |
| Country of Origin | US |
Silent Knight Intelligent 125W Amplifier EVS-125W
The Silent Knight EVS-125W is a Intelligent 125W Amplifier. It is made for fire alarm, security and facility professionals who need dependable fire alarm control panel component equipment.
Key Features
- SBUS addressable, up to four EVS-125w per system
- Each EVS-125W is supervised and has four onboard audio circuits expandable to eight with the EVS-CE4
- EVS-125W uses an easy to install Wire harness to connect the ECS-CE4 audio circuit expander
- For use with the 5820XLEVS or 6820EVS
Specifications
- Brand: Silent Knight
- Model: EVS-125W
- Product Model: EVS-125W
- Product Series: EWS
- Product Type: Distributed Audio Amplifier
- Application/Usage: Battery, Fire Alarm Control Panel, Power Supply, Speaker, Voice Evacuation System
- Depth: 4.1"
- Form Factor: Flush Mount, Surface Mount
- Height: 26.3"
- Product Color: Red
- Width: 16"
- Input Voltage: 120V AC
- Power Source: Battery
- Compatibility: 6820EVS 5820XL-EVS
- Shipping weight: 24.9 lb
Typical Uses
- Commercial fire alarm system installation and expansion
- Service and replacement on existing fire alarm systems
Please confirm that the EVS-125W matches your system, panel, mounting and finish requirements before ordering. Contact us with the model of your existing equipment if you need help checking compatibility.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Silent Knight 125W, ready to order.
- Product Type: Fire Amplifier
- Compatibility: 6820EVS 5820XL-EVS
- Input Voltage: 120V AC
- Power Source: Battery
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