Product Overview

The EVS-INT50W Silent Knight Amplifier is a compact, intelligent 50-watt audio amplifier engineered for installations that require integrated voice evacuation capabilities without the need for external amplification hardware. Designed to mount directly inside the 6820EVS cabinet, the EVS-INT50W delivers a streamlined solution for small to mid-sized emergency voice applications.

This internal amplifier provides 50 watts of supervised audio power on a single Class A or Class B speaker circuit. Because it is powered and supervised entirely by the 6820EVS, no additional AC power source, battery backup module, or auxiliary expander is required, significantly simplifying system design and installation.

Its internal mounting design reduces wiring distances, enhances reliability, and maintains a clean system layout, making it an efficient and cost-effective choice for localized voice evacuation needs.

Key Features

Provides 50 watts of supervised audio power
Internal amplifier designed to mount within the 6820EVS cabinet
Ideal for small voice evacuation installations
Does not require a separate AC source, battery backup, or NAC expander
One Class A or Class B speaker circuit
Supports System Sensor® speakers
Complies with UL 864 (10th Edition) and UL 2572 (2nd Edition)
Meets NFPA emergency communication standards
UL-listed for 520 Hz low-frequency signaling when used with compatible speakers
SBUS addressable; six-wire connection to the EVS system:
- Two wires for Voice Bus
- Two wires for SBUS
- Two wires for 24VDC auxiliary power from a constant NAC output

Compatibility

Fully compatible with the Silent Knight 6820EVS
Mounts internally within the FACP/EVS cabinet

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Warranty Terms

TELGUARD TG-7FM

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