# What makes an auditorium AV system actually work?

> Sightlines, intelligibility, and operator workflow — in that order. A flagship auditorium delivers consistent sound at every seat, readable visuals from the back row, and a control surface a non-engineer can run on event day.

**Author:** Arif Khan — Security Infrastructure & Building Technology Strategist  
**Published:** 2026-01-20  
**Reading time:** 8 min  
**Category:** [Audio Video](https://arifkhanglobal.com/ask-arif/category/audio-video)  
**Tags:** AV, Auditorium, Design  
**Canonical:** https://arifkhanglobal.com/ask-arif/what-makes-an-auditorium-av-system-work

## Short answer

Sightlines, intelligibility, and operator workflow — in that order. A flagship auditorium delivers consistent sound at every seat, readable visuals from the back row, and a control surface a non-engineer can run on event day.

## Visual explanation

Plan view: speaker coverage map, sightline cones, control booth ergonomics.

## Real-world example

An institutional auditorium of 720 seats was failing intelligibility tests in the rear third. We redesigned the line array, retuned the room and shortened the operator workflow from 14 steps to 4. Speech intelligibility scores moved into the 'excellent' band.

## Lessons

- Speech intelligibility is the real KPI.
- Design for the volunteer operator, not the AV engineer.
- Lock the rigging early.

## Related projects

- 720-seat auditorium, North India

## FAQ

### Line array or point source?

Depends on seat count and room depth — both are correct in the right room.

### How long does commissioning take?

1–3 weeks for a serious auditorium.

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Source: https://arifkhanglobal.com/ask-arif/what-makes-an-auditorium-av-system-work
Site: https://arifkhanglobal.com · Altima Global