Gong ageng

The gong ageng (or gong gedhe in Ngoko Javanese, meaning large gong) is an Indonesian musical instrument used in the Javanese gamelan. It is the largest of the bronze gongs in the Javanese and Balinese gamelan orchestra and the only large gong that is called gong in Javanese. Unlike the more famous Chinese or Turkish tam-tams, Indonesian gongs have fixed, focused pitch, and are dissimilar to the familiar crash cymbal sound.

The gong ageng is circular, with a conical, tapering base of diameter smaller than the gong face, with a protruding polished boss where it is struck by a padded mallet.