“O” opened at the Bellagio in Las Vegas on 15 October 1998, “in conjunction with the opening of Bellagio”, and has run there since. Its stage is a pool holding, per Cirque du Soleil, 1.5 million gallons of water.
On 15 October 2026 — the show’s 28th anniversary to the day — Dallas Taylor published a ten-minute tour of its sound system with Matt Obernesser, the show’s Head of Audio.
The constraint
The video’s framing is the reason to watch it, and it is a constraint shared by almost every permanent installation that has sound in it:
Matt reveals how dozens of carefully concealed speakers, from the main PA and front fills to surround speakers and custom VIP sound systems, work together to create an immersive audio experience without distracting from the performance.
Two requirements that pull against each other. Coverage wants boxes where the audience can see them, aimed where the audience is. Concealment wants them somewhere else. A show that runs for 28 years in a purpose-built room gets to resolve that in architecture rather than in rigging, which is a luxury a touring rig or a gallery install never has — and is exactly why it is instructive to see how it was resolved.
The tour covers, per its own description, how the team directs sound toward the stage, delivers consistent coverage throughout the theatre, and uses spatial audio and acoustic processing to transform how the room sounds.
That third one is the part most relevant to anyone building an installation now. Processing the room is cheaper than rebuilding it, and the gap between a space that sounds like a space and one that sounds like a venue is increasingly closed in software.
Why a separate VIP system
The detail in the description that rewards a second read is the custom VIP sound systems, plural, listed as distinct from the main PA, the front fills and the surrounds.
A premium seating area with its own system is an admission that “consistent coverage throughout the theatre” has limits, and that the honest fix for some seats is a different system rather than a different aim angle. Installation artists hit the same wall in smaller rooms: there is usually one position where the piece works and a set of positions where it nearly does, and the choice is between compromising the good seat or building a second solution for the bad ones.
What we can and cannot tell you
We have verified the video, its date, its participants and the venue facts. We have not watched the full ten minutes and cannot transcribe technical specifics we have not heard, so we are not going to list cabinet models or channel counts. The tour is the primary source and it is ten minutes long; if concealed systems in permanent rooms are your problem, watch it rather than read a summary of it.
What is worth stating plainly is the lineage. The series grew out of Twenty Thousand Hertz, Taylor’s decade-old podcast about the stories behind particular sounds, and is produced and funded by Defacto Sound, his post-production house, through its client work. That is an unusual funding model for technical documentation of other people’s installations, and it is why this kind of access exists at all — nobody’s marketing department commissioned a tour of the equipment you are meant not to notice.
For installation builders
The transferable lesson is not a speaker placement. It is that in a permanent piece, concealment is a design input from the start rather than a finishing problem, and that “the audience should not notice the equipment” is a requirement you can hold alongside “every seat must hear it properly” only if you are allowed to shape the room. When you are not — a rented gallery, a festival tent, a borrowed theatre — one of those two has to give, and deciding which one in advance is cheaper than discovering it at load-in.
Sources
- How Cirque du Soleil’s “O” Makes Their Speakers Disappear — Dallas Taylor
- The Hidden Speakers of Cirque du Soleil’s “O” — Adafruit
- “O” — Cirque du Soleil
- Twenty Thousand Hertz
- Defacto Sound