TOA Electronics VX-3000 Digital Amplifier Module 105W@70V - VX-015DA AMQ

Overview

The TOA VX-015DA is a single-channel Class-D digital amplifier module for the VX-3000 Voice Evacuation System, delivering 150 W at 100 V and certified to the EN 54 European Standard for fire alarm and voice alarm systems. Its modular plug-in format enables fast replacement without system downtime in life-safety installations.

Description

The VX-015DA slides into the VX-3000 frame units (VX-3004F, VX-3008F, or VX-3016F) and connects via a 15-pin DA control link — no audio wiring at the module level. Operating on 31 VDC from the VX-3000DS power supply unit, the Class-D design achieves 150 W output at 100 V with under 1% THD (A-weighted) and a signal-to-noise ratio of 100 dB(A). Output voltage is selectable between 50 V, 70 V, and 100 V to match the installed speaker system. The module features a standby mode that reduces idle consumption to 1.3 W, supporting the system's energy efficiency in non-emergency periods. A dust filter protects the module and is accessible for cleaning without removing the unit, and fuse access from the rear simplifies maintenance.

Key Features

• 150 W rated output at 100 V; 50 V / 70 V / 100 V output selectable
• EN 54 compliant for fire alarm and voice alarm systems
• Class-D amplifier: <1% THD, 100 dB(A) S/N ratio
• Frequency response: 40 Hz – 20 kHz
• Modular design — removable and replaceable without tools
• 1.3 W standby power; 14 W idle; 190 W at rated output
• 31 VDC power input (20–33 VDC range) from VX-3000DS
• Dust filter with easy front access; rear-accessible fuse
• Compatible with VX-3004F, VX-3008F, VX-3016F frame units

Typical Applications

• EN 54-certified voice evacuation systems in public buildings
• Fire alarm voice announcement in offices, hospitals, and schools
• Multi-zone emergency notification systems requiring scalable amplification
• Replacement module for existing VX-3000 installations
• Life-safety public address systems in transportation and retail facilities

Technical Specifications

FAQ

Does the VX-015DA require a dedicated power supply?
Yes. The VX-015DA is powered by the VX-3000DS power supply unit and must be installed in a compatible VX-3000 frame unit. It cannot operate as a standalone amplifier.

Is the VX-015DA hot-swappable?
The modular design allows the VX-015DA to be removed and replaced without tools, simplifying maintenance in life-safety systems where minimizing downtime is critical. Consult the VX-3000 installation documentation for proper procedures.

What output voltage should be selected?
Select the output voltage (50 V, 70 V, or 100 V) to match the tapped impedance of your installed speaker system. 100 V is standard for EN 54 voice evacuation applications.

How many VX-015DA modules can be installed in one system?
The number of modules depends on the VX-3000 frame: VX-3004F (4 slots), VX-3008F (8 slots), VX-3016F (16 slots). Each module provides one amplified output channel.