Over the years as a Presales Engineer, I’ve met clients across many sectors—from commercial buildings and schools to factories, Banks and hospitals. During meetings and site surveys, certain questions about Public Address (PA) and Voice Alarm (VA) systems come up time and again.

If you’ve ever wondered how these systems actually work—or why you might need one—this is for you.

Q: What’s the difference between a PA system and a VA system?

Think of a PA system as the friendly voice saying, “The store will be closing in 10 minutes.”
A VA system, on the other hand, is the calm but firm voice saying, “Please exit through the nearest door. This is an emergency.”
One is for everyday life, the other is for keeping people safe in critical moments.

Q: Why do we need a VA system if we already have a fire alarm?

Imagine the fire alarm going off in a crowded mall. Bells are ringing, people are looking around, and someone yells, “Do we go left or right?!”
That’s where a VA system steps in—it gives clear spoken instructions like,

“Attention, please. Leave the building using the exit to your right. Do not use the elevators.”

Clarity saves lives.

Q: Can one system handle both PA and VA functions?

Absolutely!
Modern integrated systems can handle daily announcements and emergency guidance. One setup, less equipment, more value.

Q: Will the system work during a power outage?

Yes. VA systems are required to have battery backup so they’ll still work when the lights go out. PA systems can also be fitted with backup power if reliability is important to you (and trust me—it is).

Q: How loud will the system be?

It won’t blast your ears off.
We calculate volume based on your building’s size, background noise, and what the system will be used for—loud enough to be clear, but never uncomfortable.

Q: What if I only want announcements in certain areas?

No problem—we can create zones. You can make an announcement to the warehouse without disturbing the offices, or call for a doctor in the ER without interrupting the entire hospital.

Q: Is the system future-proof?

Yes. Most systems are modular, meaning you can add zones, upgrade features, or expand coverage as your needs grow.

Q: How do we control the system?

From a central control panel, wall-mounted microphones, or even through software on your computer or tablet. (Yes, you can make an announcement without leaving your desk!)

Q: Can it play background music too?

Yes—many PA systems can. You can even set different music for different zones with independent volume control.

Q: What about maintenance?

VA systems legally require testing every six months to meet safety regulations. PA systems should also be checked regularly so they’re always performing at their best.

💬 Over to you:
Have you ever been in a building during an emergency and had no idea what to do?
Or maybe you’ve heard a really bad PA announcement that made you laugh instead of listen?
Share your experience in the comments—I’d love to hear your stories!