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EVS-INT50W | Silent Knight Intelligent 50W Voice Evacuation Amplifier for EVS Systems
- Regular price
- $1,039.00
- Sale price
- $1,039.00
- Regular price
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Product Description P/N: EVS-INT50W
Description
The Silent Knight EVS-INT50W Intelligent 50W Amplifier is a high-performance voice evacuation amplifier designed for use with Silent Knight’s EVS fire alarm systems. It delivers 50 watts of supervised audio power across one speaker circuit, ensuring clear and reliable emergency communication. Compact and easy to mount within compatible panels, the EVS-INT50W provides dependable operation for small to medium voice evacuation installations.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Silent Knight |
| Category | Fire Alarm Systems |
| Part Number | EVS-INT50W |
| Subcategory | Voice Evacuation Amplifiers |
| Product Type | Intelligent 50W Internal Amplifier |
| Mounting | Internal, cabinet-mount (5820XL-EVS / 6820EVS) |
| Audio Output Power | 50 Watts |
| Speaker Circuit Type | 1 Class A or Class B |
| Operating Voltage | 24V DC constant auxiliary power |
| Line Voltage Options | 25V or 70.7V RMS |
| Communication Interface | SBUS and VBUS (six-wire connection) |
| Compatibility | 5820XL-EVS, 6820EVS systems |
| Certifications | UL 864, UL 2572 |
| Tone Support | UL listed for 520Hz signaling (with compatible speakers) |
| Supervision | Full supervision via host panel |
| Form Factor | Cabinet Mount |
| Dimensions (H × W × D) | 10" × 4.5" × 1.8" |
| Country of Origin | United States |
| Weight | 2.8 lbs |
Information About EVS-INT50W
The EVS-INT50W is part of the Silent Knight IntelliKnight® Emergency Voice System (EVS) series, engineered to enhance voice evacuation functionality within integrated fire alarm networks. It is designed to mount directly inside the 5820XL-EVS or 6820EVS control panel cabinet, simplifying installation and reducing external power requirements. The amplifier operates on 24V DC auxiliary power and supports both 25V and 70.7V speaker line configurations, accommodating a wide range of building applications. With addressable SBUS connectivity and full supervision through the control panel, the EVS-INT50W ensures consistent audio output and reliable emergency messaging performance.
Key Features
- 50W Audio Power Output: Provides 50 watts of supervised audio power for clear and consistent evacuation messaging.
- Compact Internal Design: Mounts directly in the 5820XL-EVS or 6820EVS cabinet to save space and simplify system layout.
- Class A or B Speaker Circuit: Supports one fully programmable Class A or Class B speaker circuit for flexible wiring options.
- Dual Voltage Operation: Compatible with 25V or 70.7V RMS configurations for diverse system requirements.
- SBUS Addressable: Communicates directly with the control panel via the SBUS for seamless integration.
- 520Hz Signaling Support: UL-listed for low-frequency tone output when used with approved speakers.
- Simplified Installation: Six-wire connection design—Voice BUS, SBUS, and 24V DC—reduces setup time.
- Full Supervision: Continuously monitored by the host panel for power, connection, and performance integrity.
The EVS-INT50W delivers the reliability and precision required for professional-grade fire alarm voice evacuation systems.
Description
The Silent Knight EVS-INT50W Intelligent 50W Amplifier is a high-performance voice evacuation amplifier designed for use with Silent Knight’s EVS fire alarm systems. It delivers 50 watts of supervised audio power across one speaker circuit, ensuring clear and reliable emergency communication. Compact and easy to mount within compatible panels, the EVS-INT50W provides dependable operation for small to medium voice evacuation installations.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Silent Knight |
| Category | Fire Alarm Systems |
| Part Number | EVS-INT50W |
| Subcategory | Voice Evacuation Amplifiers |
| Product Type | Intelligent 50W Internal Amplifier |
| Mounting | Internal, cabinet-mount (5820XL-EVS / 6820EVS) |
| Audio Output Power | 50 Watts |
| Speaker Circuit Type | 1 Class A or Class B |
| Operating Voltage | 24V DC constant auxiliary power |
| Line Voltage Options | 25V or 70.7V RMS |
| Communication Interface | SBUS and VBUS (six-wire connection) |
| Compatibility | 5820XL-EVS, 6820EVS systems |
| Certifications | UL 864, UL 2572 |
| Tone Support | UL listed for 520Hz signaling (with compatible speakers) |
| Supervision | Full supervision via host panel |
| Form Factor | Cabinet Mount |
| Dimensions (H × W × D) | 10" × 4.5" × 1.8" |
| Country of Origin | United States |
| Weight | 2.8 lbs |
Information About EVS-INT50W
The EVS-INT50W is part of the Silent Knight IntelliKnight® Emergency Voice System (EVS) series, engineered to enhance voice evacuation functionality within integrated fire alarm networks. It is designed to mount directly inside the 5820XL-EVS or 6820EVS control panel cabinet, simplifying installation and reducing external power requirements. The amplifier operates on 24V DC auxiliary power and supports both 25V and 70.7V speaker line configurations, accommodating a wide range of building applications. With addressable SBUS connectivity and full supervision through the control panel, the EVS-INT50W ensures consistent audio output and reliable emergency messaging performance.
Key Features
- 50W Audio Power Output: Provides 50 watts of supervised audio power for clear and consistent evacuation messaging.
- Compact Internal Design: Mounts directly in the 5820XL-EVS or 6820EVS cabinet to save space and simplify system layout.
- Class A or B Speaker Circuit: Supports one fully programmable Class A or Class B speaker circuit for flexible wiring options.
- Dual Voltage Operation: Compatible with 25V or 70.7V RMS configurations for diverse system requirements.
- SBUS Addressable: Communicates directly with the control panel via the SBUS for seamless integration.
- 520Hz Signaling Support: UL-listed for low-frequency tone output when used with approved speakers.
- Simplified Installation: Six-wire connection design—Voice BUS, SBUS, and 24V DC—reduces setup time.
- Full Supervision: Continuously monitored by the host panel for power, connection, and performance integrity.
The EVS-INT50W delivers the reliability and precision required for professional-grade fire alarm voice evacuation systems.