AV Systems Built for Large-Scale Venues

Main speakers deliver the primary sound coverage across most of the audience area, typically positioned left and right of the stage or flown overhead depending on the room's size and shape.

Fill speakers cover areas the main speakers can't reach evenly — front rows close to the stage, wide side seating or under-balcony areas — so intelligibility doesn't drop off in specific seats.

In some auditoriums, ceiling or wall-mounted speakers supplement the main system for specific zones — lobbies, overflow seating or areas where a distributed approach works better than additional main speakers.

Subwoofers extend low-frequency response for content that needs it — video, music or certain presentation formats — and are specified based on the auditorium's actual use, not added by default.

Amplifiers drive the speaker system with the correct power and headroom for the room size and speaker specification, matched during design rather than selected after installation.

A DSP tunes the system to the room's acoustics — equalization, time alignment between speaker groups and level control — so audio arrives at every seat consistently rather than relying on the speakers alone.

Mixers combine and manage multiple audio sources — microphones, playback, video conferencing — giving the operator control over what's heard and how it's balanced during an event.

Stage monitors let speakers and performers hear themselves clearly on stage, independent of what the audience hears through the main system.

Podium microphones and integrated audio provide reliable pickup for a fixed speaking position, commonly paired with the main system for lecterns and formal presentations.

Wireless handheld, lavalier and headset microphones give presenters and performers freedom of movement without sacrificing audio quality, coordinated with the DSP and mixer to avoid interference and feedback.

Handheld wireless microphones give a single presenter freedom to move around the stage without a cable, commonly used for keynote speakers, hosts and Q&A moderators.

Clipped to clothing, lavalier microphones keep a presenter's hands free for gestures, notes or demonstrations while staying visually unobtrusive on camera or in the room.

Headset microphones stay a fixed distance from the mouth regardless of how much a presenter moves or turns their head, giving more consistent audio than a lavalier for active presenters.

Mounted directly on a podium or lectern, these microphones suit presenters who speak from a fixed position, such as formal addresses, ceremonies or structured presentations.

Gooseneck microphones mount to a podium, table or panel surface and can be bent into position, offering a flexible middle ground between a fixed podium mic and a full wireless setup.

Table-mounted conference microphones support panel discussions and multi-speaker formats, often with individual on/off control per microphone so only active speakers are picked up.

Handheld or fixed microphones positioned in the audience — or passed by a runner — let attendees ask questions and be heard clearly by the rest of the room, important for panels, town halls and training sessions.

Brightness (measured in lumens) needs to match the room's ambient light and screen size — an auditorium with natural light or bright house lighting during presentations needs significantly more brightness than a fully darkened space.

Resolution determines how much detail the projected image can show — higher resolution matters most for detailed content like spreadsheets, technical diagrams or fine text, and less for video or simple presentation slides.

Throw distance is the distance between the projector and the screen needed to produce a given image size — it determines where the projector can physically be mounted and whether a standard, short-throw or long-throw lens is required.

Screen size needs to be large enough for the furthest seat to read content clearly, without exceeding what the projector's brightness and resolution can support at that size.

How much light is in the room — daylight, house lighting kept on for note-taking, stage lighting — directly affects how much projector brightness is actually needed to keep the image legible.

The distance from the screen to the furthest seat sets the minimum screen size and resolution needed for content to stay legible throughout the auditorium, not just in the front rows.

Laser light sources typically offer a longer service life and more consistent brightness over time than traditional lamp-based projectors, which can matter for auditoriums run on a heavy daily schedule — lamp-based projectors remain a lower-cost option for lighter use.

Fixed-frame screens are permanently tensioned in place, giving the flattest and most consistent viewing surface — a practical fit for auditoriums where the screen is a permanent fixture rather than something that needs to retract.

Motorized screens retract out of view when not in use, letting the stage area serve other purposes — performances, panel seating — without a screen permanently on display.

Large-format screens are sized specifically for bigger auditoriums and longer viewing distances, where the image needs to remain legible from the back rows without oversizing the projector requirement unnecessarily.

Beyond a single front screen, some auditoriums use projection directly onto stage elements or additional side screens to extend visibility for wider seating layouts or to support stage design.

Large-format LED walls scale to fill a main stage backdrop or side screen without being limited to the fixed panel sizes of an LCD video wall, making them a common choice for bigger auditorium stages.

Direct-view LED has no bezels between tiles, so the image reads as one continuous surface — important for a stage display the whole audience is looking at directly, not through a projected image.

Fine-pitch LED is used where the front rows sit close enough to the stage display that a wider pixel pitch would look coarse, trading some cost efficiency for a sharper close-range image.

The primary display behind or beside the stage carries the main visual content — presentation slides, speaker video, branding — and is usually the largest and most visually dominant screen in the room.

Side screens extend visibility to wider seating angles the main stage display can't cover well, particularly in wider or fan-shaped auditoriums.

Confidence monitors face the presenter rather than the audience, showing slides or notes so a speaker doesn't need to turn around to see what's on the main screen.

A stage video wall typically needs to display more than one type of content — presentation slides, live camera feeds, video, graphics — often switching between sources during a single event.

A video wall processor manages how content is distributed and windowed across the main display, side screens and confidence monitors, sized around how many sources and screens the system needs to handle at once.

One or more cameras capture the stage and presenter, ranging from a single fixed camera to multiple angles with switching between them.

Microphone and program audio feed into the recording and streaming system alongside the video, so remote viewers hear the same clear audio as the room.

Slides, video and other presentation content can be captured directly rather than relying on a camera pointed at the screen.

Events can be recorded locally for later use — training libraries, compliance records or on-demand viewing — independent of whether they're streamed live.

Live streaming sends the event to a platform or private link in real time, for viewers who can't attend in person.

Beyond one-way streaming, some setups let remote participants be seen and heard as part of the event itself, not just watch it.