On September 29, U2 made headlines around the world with the opening night of a 25-show residency at the Sphere, a new, state-of-the-art venue in Las Vegas. Not for the first time, the band were bringing cuttingedge audio and visual technology to the art of live performance. And to call the results eye-catching would be an understatement.
Built at a cost of $2.3 billion by the owners of New York’s Madison Square Garden, the Sphere boasts something called ‘spacial sound’, using 168,000 speakers to make the audience feel as though they are
