All-in-one EN54-16  and EN54-4 certified Voice Alarm System with integrated  main and backup power supply, internal backup batteries, integrated charger and battery tester. Transformer coupled 300W main and spare Class D “Pure Path” ™ power amplifiers on redundant A+B 100V loudspeaker line. Full power and full performance is granted with both main and backup power sources. DSP based audiophile sound processing. Balanced and isolated background music input, general announcement isolated microphone station input with enabling contact trigger and selectable 48V phantom power; monitored input for remote emergency call stations, frontpanel monitor speaker, monitored emergency PPT microphone and line output for active sub-woofer. Audiophile grade 16bit 48Khz message player with uSD storage: 8 general purpose messages triggerable by dedicated input contacts or by embedded scheduler and 2 monitored input triggers for fire alarm emergency announcements. Comprehensive user interface with LCD dot-matrix display, navigation buttons, alarm fire alarm announcements direct activation buttons and user activation key.

Tech description



Main power source

AC mains 220V –  50/60Hz

Backup power source

48V – built-in batteries (4x 12V 7,2A/h sealed lead acid)

Backup power unit life

36h stand-by + 0.5h full power

Maximum power consumption


Rated Output power

Single zone 300W rms @ 1% THD on 100V loudspeaker line

Frequency response

100Hz – 18Khz @ -3dB

Signal to noise ratio


Redundant power amplifier


Redundant loudspeaker line

Yes (Line A, Line B)

Loudspeaker line monitoring

Line A and Line B independent 18 KhZ FFT impedance measurement +/-5% range. Detection of line cut, line short, line grounding

User interface

Status leds + dot-matrix display, menu navigation keyboard, direct access status keys (alarm, warning, silencing)

Audio processing

DSP based, 16bit-48Khz; 3-band equalizer, Compressor/expander on microphone inputs; Pre-gain and master volume controls; Chime

Audio inputs/outputs

Background music; microphone input with phantom supply and enable contact input. Subwoofer line output

Front panel loudspeaker monitor


Emergency Firemen microphone

Frontpanel PPT microphone with monitored capsule RJ14 input for WG-MTU01 desktop emergency call station

General input controls

8x dry contact inputs triggers for general announcement messages

General message scheduler


Input controls from fire alarm devices

2x monitored  input contacts against cable-cut and cable short. Alarm, warning

Output status reporting

 2x 1A 230V relay contacts (alarm, fault)


RS485, RS232 diagnostic port, RJ45 10 BASE-T/100

Battery monitoring

Internal resistance DC measurement

Certifications and compliancy

EN54-16, EN54-4, BS-EN5839-8, 60849

Access restriction

Key-locked front door, password protected access to system menu

Chassiss, dimensions and weight

Steel, powder coated – 12Kg batteries included. Width 440mm, Height 11 Rack units (490mm) – Depth 150mm