The Right Message.
The Right Zone.
The Right Time.
Multi-zone public address systems that give you independent control of every area in your facility — general announcements, zone‑specific alerts, background music, and emergency broadcasts, all managed from a single point.
What is a zone‑based PA system?
A zone‑based PA system divides a facility into independently managed audio areas. Each zone receives only the audio intended for it — a factory floor zone hears shift announcements, a reception zone hears background music, and all zones hear an emergency broadcast simultaneously. Zone boundaries and routing are configured in the DSP and controller — not determined by physical cable limits.
Who is it for?
- ✓ Multi‑floor office buildings
- ✓ Hospitals — ward‑level zoning
- ✓ Hotels — lobby / restaurant / event hall / pool
- ✓ Manufacturing — production areas, loading docks, offices
- ✓ Campuses — buildings, outdoor areas, sports grounds
- ✓ Retail — department zones, stockroom
The Problems Zone‑Based Systems Solve
One announcement disturbs everyone
A single‑zone PA broadcasts every message to the entire facility — interrupting meetings, disturbing patients, or reaching areas where the announcement is irrelevant. Zone control ends this.
Emergency announcements don't reach critical areas
Without a designed zone system with emergency priority override, there is no guarantee that an evacuation announcement reaches every part of the building. Zone‑based design makes this testable and certifiable.
Background music and PA fight each other
Without zone logic and priority routing in a DSP, background music and PA announcements compete — the result is distorted, overlapping audio that serves neither purpose.
Scope of Work
Zone Priority Hierarchy
Level 1 (Highest Priority)
Emergency / Fire Alarm Override
All zones receive simultaneously. Cannot be muted or overridden. Activated by fire panel contact.
Level 2
General PA / Paging Announcement
Operator‑selected zones. Interrupts background music. Can be zone‑selective or all‑zones.
Level 3
Scheduled / Automated Announcements
Time‑triggered — shift bells, break announcements, scheduled messages.
Level 4 (Lowest — Default)
Background Music
Plays continuously in configured zones when no higher priority source is active. Resumes automatically after announcement ends.
Zone Count by Facility Type
| Facility Type | Typical Zone Count |
|---|---|
| Small office (1 floor) | 2–4 zones |
| Multi‑floor office | 1–2 per floor |
| Hospital ward block | 1 per ward |
| Hotel | 1 per area type (lobby, F&B, event, pool, back‑of‑house) |
| Factory | 1 per production area + office + yard |
| Campus | 1 per building + outdoor zones |
Our Zone‑Based PAS Process
Site Survey & Zone Definition
Walk every area, define logical zone boundaries based on use and acoustic requirements.
DSP & Amplifier Design
Size amplifiers per zone load, design DSP routing and priority logic.
Infrastructure Prep
Coordinate cabling, conduit, power, and amplifier room layout.
Speaker & Station Installation
Mount speakers per zone, install paging stations and zone controllers.
DSP Configuration & Zone Routing
Program zone assignments, priority levels, and source routing.
Fire Integration & Handover
Test emergency override with fire panel, verify every zone, train admins.
Real Zone‑Based PAS Deployments
Every photo is from an actual Layerix zone‑based PA project — 100% in‑house.
Client Success Story
Challenge: Single‑zone PA — code blue announcements played in every ward, disturbing patients and causing confusion. Emergency override not tested.
Solution: 12‑zone DSP system, ceiling speakers per ward, zone paging stations at nursing stations, fire alarm integration.
Outcome: Code announcements restricted to relevant wards, patient complaints down 85%, emergency broadcast verified in all zones under 3 seconds.