Special acoustic diffusion panels have been added to the venue’s timber box fronts, allowing for a more balanced and true sound.The acoustic ‘petals’ have been finished in a semi-gloss magenta – the same colour as Peter Hall’s signature magenta seen in the iconic seat upholstery. 18 specially-designed acoustic reflectors have been installed above the stage, replacing the clear acrylic ‘donuts’.The multi-million-dollar project delivered extensive improvements to the venue, including: better acoustics for artists and audiences, enhanced access for people with mobility needs, new state-of-the-art theatre machinery and staging systems, and a more flexible and safer working environment for staff behind-the-scenes. In July 2022, the Opera House completed extensive upgrades to the Concert Hall.

As well as being home to the Sydney Symphony Orchestra, Australian Chamber Orchestra and Sydney Philharmonia Choirs, it stages a growing program of contemporary music and performance, talks, comedy, circus, cabaret and more. The Concert Hall is the heart of the Opera House and its largest internal venue.

Sydney opera house calender