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Public Address System & Critical Communications
Every Voice Heard. Every Person Safe.
In an emergency, clear and authoritative communication can be the difference between an orderly evacuation and a catastrophic response failure. Digitech designs and installs EN 54-16 and NFPA 72-compliant Public Address and Voice Alarm systems that deliver intelligible, directed, and controlled emergency announcements to every zone of your building. Beyond emergency use, our systems integrate background music, general PA, and critical communications into a single unified platform — serving your day-to-day operational needs while remaining always ready for life safety activation.
Trusted Voice Alarm & PA Brands, Expertly Integrated
Digitech supplies and integrates the following PA and voice alarm platforms:
Honeywell
An advanced Public Address and Voice Alarm (PAVA) solution designed to broadcast clear messages for routine communication and emergency evacuation — known for reliability, zone-based control, and deep integration with fire alarm and BMS systems across buildings and campuses.
Bosch
A highly reliable, networked PAVA solution designed for clear announcements and controlled emergency evacuation in small to large-scale facilities — offering EN 54-16 compliance, full redundancy, and scalable networked audio architecture.
TSG
An advanced PA communication solution providing clear audio announcements, emergency communication, and voice evacuation across commercial, industrial, and mission-critical facilities — with centralised and zone-wise control through microphones, amplifiers, and networked audio infrastructure.
Heinrich
A specialised PAVA platform designed for emergency voice evacuation, public announcements, passenger information, and industrial communication — with particular strength in metro, railway, airport, oil and gas, and industrial PAGA/PAVA systems using IP-based and redundant architectures.
Ahuja
One of India's most recognised and widely adopted PA system brands since 1940 — delivering reliable and cost-effective audio communication for public announcements, emergency paging, and sound reinforcement across commercial, institutional, industrial, and public infrastructure environments.
Life Safety PA vs General Purpose Public Address
Digitech designs PA systems to serve both life safety and operational communication needs — ensuring EN 54 and NBC compliance while maximising the day-to-day utility of the infrastructure investment.
Voice Alarm (EN 54-16)
Dedicated life safety system with automatic fault monitoring, fire alarm trigger integration, and pre-recorded or live emergency announcements to defined zones.
General PA / BGM
Day-to-day paging, background music, and general announcements using the same loudspeaker infrastructure as the voice alarm system.
Critical Communications Integration
Commercial PA systems combining background music, paging, and emergency evacuation with extensive loudspeaker and amplifier product ranges.Integration with fire alarm, BMS, and security systems for automated multi-system responses triggered by a single alarm event.
What Your PA and Critical Communications System Can Do
- Zoned audio delivery ensuring emergency messages reach only affected areas — preventing unnecessary panic in uninvolved building zones
- Pre-recorded multilingual evacuation messages with automatic sequencing based on fire alarm zone inputs and cause-and-effect logic.
- Live microphone override allowing security or emergency coordination teams to broadcast real-time instructions across selected zones.
- EN 54-16 fault monitoring with continuous self-diagnosis of amplifiers, cabling, and loudspeakers — alerting to any fault that could impair emergency performance.
- Fire alarm integration triggering automatic zone-based evacuation announcements when specific detectors or zones activate.
- Telephone paging interface allowing reception and management teams to broadcast general announcements from standard telephone handsets.
- Amplifier redundancy ensuring that the failure of a single amplifier does not impair emergency announcement capability in any zone.