Roughly 8.5 speakers per seat. And they are designed to be pointed at each of the 17,500 seats. So if you actually sat in the seat you're assigned to, you'll get an immersive audio experience.
For example. When they show a video of a jet flying from the left to the right. Each seat will hear it from the left to the right as a "personal" experience. Not just a few speakers like in a theater.
Even though they didn't talk about it, but they did show it. It would be possible to have multiple languages spoken throughout the audience without having the voice talking over each other.
