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Every Word Heard.
Every Zone Covered.
Every Emergency Reached.

Layerix designs and installs professional public address systems — zone‑based PA, IP‑based PAS, speaker arrays, and mixer‑amplifier systems — engineered for clarity, coverage, and safety compliance, installed entirely by our certified in‑house engineers.

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Layerix technician installing ceiling speakers
3 Seconds

is the maximum acceptable delay between a fire alarm trigger and an audible evacuation announcement reaching every zone in a facility. A poorly designed PA system cannot guarantee this.

Unintelligible Audio

= No Communication. A speaker system that distorts, clips, or fails to cover dead zones does not inform — it creates confusion. Speech intelligibility (STI) is a measurable standard. Layerix designs to meet it.

One Announcement. Every Corner.

A factory floor, a hospital ward, a multi‑level office, or a campus — every facility has spaces where a single speaker cannot reach. Zone‑based PAS ensures no location is left unheard.

A public address system is not a speaker on a wall. It is a life‑safety and operational communication infrastructure that must work the first time — particularly when it matters most. Layerix designs every PAS for clarity, coverage, and compliance — with emergency priority built in from the start.

Our PAS Services

End‑to‑end public address solutions — designed, installed, and supported by our in‑house certified engineers.

🔊

Zone Based Systems

Controlled Coverage

Multi‑zone PA systems that deliver the right message to the right area — general announcements, zone‑specific alerts, and emergency broadcasts independently managed.

  • ✓ Independent zone control
  • ✓ Emergency priority override
  • ✓ Background music per zone
  • ✓ Fire alarm & evacuation system integration
Learn more →
🌐

IP Based PAS

Networked Audio

IP‑networked public address systems that distribute audio over your existing data network — eliminating dedicated audio cable runs and enabling centralised management.

  • ✓ Audio over Ethernet (AoE / Dante)
  • ✓ Centralised management dashboard
  • ✓ Remote zone control & monitoring
  • ✓ Scalable — add zones without recabling
Learn more →
📢

Speaker System

Sound Coverage

Speaker selection, placement, and installation engineered for the acoustic characteristics of your space — ceiling, wall, column, horn, and line‑array configurations.

  • ✓ Acoustic assessment per space
  • ✓ Speaker type selection by environment
  • ✓ Coverage overlap design
  • ✓ Weatherproof & industrial rated options
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🎛️

Mixer & Amplifiers

Signal Processing

The signal backbone of every PA system — mixers, amplifiers, and DSPs that drive your speakers cleanly, reliably, and at the correct power level for every zone.

  • ✓ Amplifier sizing per zone load
  • ✓ DSP configuration & EQ
  • ✓ Rack installation & wiring
  • ✓ 100V line & low impedance systems
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End‑to‑End PAS Process

1

Site Survey & Acoustic Assessment

We walk every zone — measuring floor area, ceiling height, ambient noise level, and surface materials — to understand the acoustic challenge before specifying a single speaker.

2

Zone Design & Coverage Planning

Zone boundaries, speaker placement, and coverage patterns are modelled to ensure every point in the facility is within the coverage arc of at least one speaker.

3

Hardware Specification & BOQ

Speaker type, amplifier wattage, cable gauge, and DSP platform — all specified per zone based on the acoustic assessment, not a generic template.

4

Infrastructure Preparation

Cable containment, conduit routes, amplifier room power, and speaker back boxes coordinated before installation day.

5

Installation & Wiring

100% in‑house team. Every speaker mounted, every cable pulled and terminated, every amplifier racked and connected.

6

DSP & System Configuration

Routing, EQ, compression, limiting, and zone logic configured on the DSP before any listening test.

7

Commissioning & Calibration

On‑site listening test in every zone. SPL measurement at multiple points. Speech intelligibility verified. Every zone signed off before handover.

8

Fire System Integration & Testing

Emergency priority routing tested with your fire alarm system. Evacuation announcement confirmed audible in every zone within the required response time.

Why Layerix

📐

Acoustic Design First

Speaker placement and amplifier sizing are calculated from acoustic measurements — not estimated from floor plan dimensions alone.

🚫

Zero Subcontracting

The engineer who designs your PA system installs and commissions it. No audio subcontractor. No coordination gaps.

🔌

Network + PAS as One Scope

For IP‑based PAS, Layerix handles the network configuration and the audio system from the same team — VLAN, QoS, and Dante audio all configured cohesively.

🔥

Fire Safety Integration Standard

Every PAS Layerix installs includes emergency priority override design and fire alarm interface — safety is never an optional add‑on.

📋

Full Documentation

Zone map, amplifier room layout, DSP configuration export, speaker schedule, and impedance test results — all delivered at handover.

🔄

AMC & Ongoing Support

Annual speaker inspection, amplifier health checks, DSP firmware updates, and fault response under AMC.

Industries We Serve

🏭

Manufacturing & Warehouses

Shift announcements, emergency evacuation, production floor PA

🏥

Hospitals & Healthcare

Ward‑level PA, code announcements, patient call, background music zoning

🏨

Hotels & Hospitality

Lobby, restaurant, event hall, pool area — background music & PA

🏢

Corporate Offices

All‑floor announcements, reception music, emergency evacuation

🎓

Education & Campuses

Bell systems, campus‑wide PA, sports ground announcements

🏗️

Commercial Real Estate

Multi‑tenant floor PA, lobby music, car park emergency announcement

🏬

Retail

In‑store background music, promotional announcements, PA

🚉

Transport & Infrastructure

Platform announcements, terminal PA, emergency broadcast systems

Real Engineers. Real Installations. Real Sound.

Every photo is from an actual Layerix PAS deployment — taken by our team, at a client site, with work done 100% in‑house. No stock imagery. No subcontractors.

Technician installing a ceiling speaker — fitting to ceiling grid
Technician installing a ceiling speaker — fitting to ceiling grid — Manufacturing, Pune
Engineer wiring an amplifier rack — terminations and cable management
Engineer wiring an amplifier rack — terminations and cable management — Healthcare, Bengaluru
Technician mounting a horn speaker on a wall or pole
Technician mounting a horn speaker on a wall or pole — Manufacturing, Mumbai
Engineer configuring DSP on a laptop — software UI visible on screen
Engineer configuring DSP on a laptop — software UI visible on screen — Healthcare, Mumbai
Finished amplifier rack — clean, labelled, with DSP and amplifiers
Finished amplifier rack — clean, labelled, with DSP and amplifiers — Manufacturing, Mumbai
Wide shot of server / AV room with PA rack and Layerix engineer
Wide shot of server / AV room with PA rack and Layerix engineer — Healthcare, Mumbai

Client Success Stories

ManufacturingPune

Challenge: Factory floor had no PA — shift changes and emergency announcements were by word of mouth or running the siren only.

Solution: 12‑zone IP‑based PAS, 48 ceiling speakers, 8 horn speakers, integrated with fire alarm panel.

Outcome: 100% zone coverage, 89 dB SPL achieved, evacuation announcement reaches all areas in under 3 seconds.

HospitalChennai

Challenge: Legacy PA system had dead zones in wards and corridors — code announcements often missed by nursing staff.

Solution: 8‑zone DSP‑controlled system, 64 ceiling speakers, ward‑specific paging microphones, fire integration.

Outcome: Zero dead zones, code announcement audibility improved from 67% to 100%, staff complaint dropped 92%.

Read more from the clients we've worked with → layerixnetworks.com/customer-wins

25+ enterprises. 9+ industries. Every project 100% in‑house.

View All Client Stories →

Frequently Asked Questions

What is a PAS and how is it different from a regular speaker system?▼
A Public Address System (PAS) is a managed, structured audio infrastructure designed for reliable voice communication across a facility — not just background music playback. It includes a defined signal path from microphone or audio source through a mixer and amplifier to speakers in specific zones, with the ability to override normal audio with emergency announcements. A regular speaker system typically plays music from one source. A PAS manages multiple sources, multiple zones, priority logic, and emergency integration.
What is a zone in a PA system?▼
A zone is a defined area of a facility that can receive audio independently from other areas. A hospital might have zones per ward. A factory might have zones per production area. A hotel might have zones for lobby, restaurant, pool, and event hall. Each zone can receive its own announcement, its own background music, or be silenced — while other zones continue normally. Layerix designs zone boundaries based on your operational requirements.
Do you supply the equipment or only install?▼
Both. Layerix supplies and installs, or installs hardware you have procured. We work with TOA, Bosch, Apart, Bose, QSC, Crown, and Yamaha — and recommend the right equipment for your space, zone count, and budget.
What is 100V line and why is it used in PA systems?▼
100V line (also called constant voltage or 70V in the US) is a distribution standard that allows multiple speakers to be connected in parallel on a single cable run from an amplifier — over long distances and with flexible power tapping per speaker. It is the standard for most commercial PA installations because it allows large numbers of speakers to be driven from fewer amplifier channels without complex impedance calculations. Low impedance (4–8 ohm) systems are used for short cable runs requiring high audio fidelity, such as stage monitors or studio setups.
Does the PA system integrate with our fire alarm system?▼
Yes — and it must. Every Layerix PAS installation includes a fire alarm interface that gives the fire panel priority override of all audio zones. When the fire alarm triggers, all normal PA activity stops and the emergency evacuation announcement plays in every zone automatically. This is a non‑negotiable design requirement we enforce on every project.
What is speech intelligibility and how do you measure it?▼
Speech intelligibility is a measure of how clearly spoken words can be understood in a given space. It is affected by reverb, ambient noise, speaker coverage overlap, and amplifier distortion. The standard measure is STI (Speech Transmission Index) — a score from 0 to 1, where 0.6+ is considered good for PA environments. Layerix designs speaker placement and DSP settings to achieve the required STI for your space type, and verifies it during commissioning.
What is a DSP in a PA system?▼
A DSP (Digital Signal Processor) is the processing unit that sits between your audio sources and amplifiers. It handles routing (which source goes to which zone), equalization (adjusting tone for the acoustic character of each space), compression (preventing distortion at high volumes), gating (automatically muting channels when not in use), and delay (timing speakers in large spaces to prevent echo). Without a DSP, a multi‑zone PA system cannot be properly calibrated.
What is the difference between IP‑based PAS and traditional PAS?▼
Traditional PAS uses dedicated analogue audio cabling from the amplifier room to each speaker zone. IP‑based PAS distributes audio over your existing Ethernet network using protocols such as Dante or AES67 — eliminating dedicated audio cable runs and enabling centralised management of every device. IP‑based PAS is more scalable and flexible but requires a properly configured network. Layerix handles both the audio and the network configuration as one scope.
How do you ensure every part of our facility is covered?▼
We conduct an acoustic site survey of every space before specifying speaker placement. We calculate the coverage arc of each speaker type against the ceiling height and room dimensions, and design overlapping coverage zones to eliminate dead spots. We then verify coverage with SPL (Sound Pressure Level) measurements at multiple points during commissioning.
Can background music and PA announcements share the same speakers?▼
Yes — this is the standard design for most commercial PA installations. Background music plays at a defined level across the relevant zones. When a PA announcement is made, it interrupts the music at a higher priority level. When the announcement ends, music resumes automatically. Priority levels are configured in the DSP — emergency announcements at the highest priority, general PA above background music.
Can the system be expanded if we add more floors or buildings later?▼
Yes. We design every PAS with future expansion in mind — specifying amplifiers with headroom, leaving spare zone capacity in the DSP, and documenting the cable schedule so additional zones can be added without redesigning the core system. For IP‑based PAS, adding a new zone requires an encoder or network endpoint — no additional amplifier cabling.
Do you work outside Bengaluru?▼
Yes. Layerix is operationally active across Karnataka, Tamil Nadu, Maharashtra, and Gujarat, with the capability to serve clients across all Indian states.