It also offers sound expansion through ROM cards, six assignable audio outputs, and a backlit LCD display.

Additionally, the DDD-1 offers five selectable dynamic envelopes, influencing volume changes based on the intensity of the pad strikes.

[1][4] The drum machine features 18 sounds, including two types of kick drums and snares, three variations of toms, a rimshot, two sets of both closed and open hi-hats, crash and ride cymbals, claps, a cowbell, tambourine, and cabasa.

The machine accommodates up to four ROM cards simultaneously, allowing their sounds to be used in conjunction with the internal ones.

[1] In 1987 Korg introduced the DDD-5 as a more affordable version of the DDD-1, featuring just seven pads, lacking the sampling capability, and equipped with a reduced number of individual sound outputs on its rear panel.