Public Address (PA) Systems & Background Music

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Public Address Systems — PA Systems in Tbilisi

Public Address Systems (PA Systems) are professional audio solutions for voice announcements, background music, and voice evacuation in shopping centers, offices, hotels, hospitals, schools, and industrial facilities in Tbilisi and throughout Georgia. These systems use 100V/70V constant voltage technology which allows connecting dozens of speakers to one amplifier over long distances (300-1000m) with minimal signal loss and ensures uniform sound throughout the facility. LAGI offers full range of PA system components: constant voltage amplifiers 60W-1500W power, ceiling speakers 3W-30W (recessed, fire-rated), wall speakers with IP65 weatherproof housing, column speakers for outdoor spaces, horn speakers 10W-50W, microphone paging consoles with zone control, audio matrices and processors, voice evacuation modules with EN54-16 certification. All systems support zone control (different music/messages in different zones), priority announcements, and integration with fire alarm systems.

Main Components of PA System

  • Constant voltage amplifiers — 100V/70V output, 60W-1500W power, 4-6 zone outputs, MIC/LINE inputs, USB/SD/FM tuner, built-in DSP.
  • Ceiling speakers — 3W-30W, with 100V transformer, recessed mounting, fire-rated housing, wide dispersion 120°-160°, ideal for offices, shops.
  • Wall speakers — 6W-30W, IP65 weatherproof, UV-resistant plastic, mounting bracket, suitable for outdoor and indoor use.
  • Column speakers — 10W-60W, IP66 aluminum housing, 360° sound dispersion, 3-10m height, for parks, streets, stadiums.
  • Microphone paging consoles — 4-16 zone control, PTT (Push-To-Talk) button, chime tone, priority announcements, LCD screen.
  • Voice evacuation modules — EN54-16 certification, automatic integration with fire panel, pre-recorded messages, battery backup 24-72 hours.

FAQ — Frequently Asked Questions

What is 100V constant voltage system and why is it needed?

100V constant voltage system is special audio technology using high voltage (100V) and low current for signal transmission. This allows: 1) connect dozens of speakers to one amplifier (50-100+ speakers), 2) use thin cables (0.75mm²-1.5mm²) over long distances (300-1000m), 3) minimal signal loss, 4) individual power adjustment of each speaker via transformer. Ideal for large facilities.

How many speakers can be connected to one amplifier?

Depends on amplifier power and speaker power. Formula: quantity = amplifier power ÷ speaker power. Example: 240W amplifier + 6W speakers = 40 speakers (240÷6=40). 500W amplifier + 10W speakers = 50 speakers. Always leave 20% reserve and consider zone distribution.

Can PA system integrate with fire alarm?

Yes, PA system must integrate with fire alarm for voice evacuation (EN54-16 standard). When fire panel activates, PA system automatically: 1) stops background music, 2) plays pre-recorded evacuation message in all zones, 3) turns all speakers to maximum volume, 4) continues message until fire panel is reset. This is life-safety critical function.