EVS-100W | Silent Knight Intelligent 50/100W Voice System Amplifier with Backup Power
Silent Knight · Industrial Automation & Electrical
Description The Silent Knight EVS-100W is an intelligent 50/100-watt distributed audio amplifier designed for use with Version 14.0 or newer 5820XL-EVS or 6820EVS fire alarm control panels. It amplifies audio messages for building-wide distribution and supports up to 100 watts of total audio power with an optional 50-watt backup configuration. The unit ensures reliable emergency voice communication performance and full system supervision in critical applications. Technical Specifications Condition New/Never Used Surplus Brand Silent Knight Category Fire Alarm Equipment Part Number EVS-100W Subcategory Voice System Amplifier Output Power 100 W total; configurable as 50W+50W backup or 100W single channel Speaker Circuits 8 supervised outputs Operating Voltage 120 VAC 60 Hz or 240 VAC 50 Hz Audio Output Voltage 25 Vrms or 70.7 Vrms Backup Battery Support 7–35 Ah; up to 18 Ah inside cabinet Wiring Requirement 6 conductors (2 for voice bus, 4 for SBUS) Mounting Distance Up to 6,000 ft from EVS control panel Audio Bandwidth 400 Hz to 4,000 Hz Standards Compliance UL 864, UL 2572, NFPA 72 Compatibility 5820XL-EVS and 6820EVS systems (Version 14.0 or newer) Enclosure Red metal cabinet Operating Temperature 32°F to 120°F (0°C to 49°C) Dimensions 16.10 × 26.50 × 4.10 in Weight 15 lbs Information About EVS-100W The EVS-100W is part of the Silent Knight Emergency Voice System (EVS) series by Honeywell, built to deliver high-performance audio amplification within life safety and fire communication systems. It provides up to eight supervised speaker circuits and includes its own power supply with battery backup for continuous operation during power loss. The amplifier can operate in several configurations, including 50W+50W backup or a single 100W channel, ensuring flexibility for system design. Fully supervised by the control panel, the EVS-100W maintains communication integrity and compliance with NFPA 72 and UL 864 standards for emergency voice signaling. Key Features: High Output Power: Delivers up to 100 watts of audio power at 25 Vrms or 70.7 Vrms for clear message distribution. Flexible Configuration: Operates as 50W+50W backup, 100W single channel, or 100W with 50W backup (when used with EVS-100WBU). Integrated Power Supply: Includes a built-in power source with battery backup for continuous reliability. Eight Speaker Circuits: Provides eight supervised NAC outputs for multiple audio zones. Extended Mounting Distance: Can be installed up to 6,000 feet from the control panel for remote deployment. Compliant Design: Meets UL 864, UL 2572, and NFPA 72 low-frequency tone requirements for sleeping areas. Backup Amplifier Test: Allows physical testing of backup amplifier functionality for maintenance assurance. Wide Bandwidth: Supports 400 Hz to 4,000 Hz frequency range for high-quality audio transmission. The EVS-100W delivers the reliability and precision required for emergency communication, life safety, and voice evacuation systems in commercial and institutional environments.
Brand: Silent Knight · Category: Industrial Automation & Electrical
Key features
- High Output Power: Delivers up to 100 watts of audio power at 25 Vrms or 70.7 Vrms for clear message distribution.
- Flexible Configuration: Operates as 50W+50W backup, 100W single channel, or 100W with 50W backup (when used with EVS-100WBU).
- Integrated Power Supply: Includes a built-in power source with battery backup for continuous reliability.
- Eight Speaker Circuits: Provides eight supervised NAC outputs for multiple audio zones.
- Extended Mounting Distance: Can be installed up to 6,000 feet from the control panel for remote deployment.
- Compliant Design: Meets UL 864, UL 2572, and NFPA 72 low-frequency tone requirements for sleeping areas.
- Backup Amplifier Test: Allows physical testing of backup amplifier functionality for maintenance assurance.
- Wide Bandwidth: Supports 400 Hz to 4,000 Hz frequency range for high-quality audio transmission.
Specifications
| Manufacturer part number | EVS-100W |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Silent Knight |
| Category | Fire Alarm Equipment |
| Part Number | EVS-100W |
| Subcategory | Voice System Amplifier |
| Output Power | 100 W total; configurable as 50W+50W backup or 100W single channel |
| Speaker Circuits | 8 supervised outputs |
| Operating Voltage | 120 VAC 60 Hz or 240 VAC 50 Hz |
| Audio Output Voltage | 25 Vrms or 70.7 Vrms |
| Backup Battery Support | 7–35 Ah; up to 18 Ah inside cabinet |
| Wiring Requirement | 6 conductors (2 for voice bus, 4 for SBUS) |
| Mounting Distance | Up to 6,000 ft from EVS control panel |
| Audio Bandwidth | 400 Hz to 4,000 Hz |
| Standards Compliance | UL 864, UL 2572, NFPA 72 |
| Compatibility | 5820XL-EVS and 6820EVS systems (Version 14.0 or newer) |
| Enclosure | Red metal cabinet |
| Operating Temperature | 32°F to 120°F (0°C to 49°C) |
| Dimensions | 16.10 × 26.50 × 4.10 in |
| Weight | 15 lbs |
| Product type | Voice System Amplifier |
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