Sydney concert venue. Locally known as the Sydney Super Dome since 1999, the 21,000-capacity Allphones Arena (formerly known as the Acer Arena) came to fruition as part of Sydney’s 2000 Olympic Games celebration – playing host to the gymnastics competition and the basketball finals. The combination of being the largest indoor venue in Australia and being located in the country’s most vibrant city makes the Allphones Arena a must-play arena for all touring artists who pass through Australia on tour.