MEMORY EXTENSION: 512 Memory locations for sounds and functions.
ARPEGIATOR: very sophisticate
DELAY
SOUND STACK: 3 multitimbral stacking modes (8x2, 5x3 or 4x4) with VOLUME, COARSE TUNE and FINE TUNE settings on each voice.
SOUND CREATOR: a powerful and effective way to create your own sounds on DX7
ROLLING MODE: allows using up to 4 sounds per patch
VELOCITY CROSS-SWITCH: allows switching from one sound to other by velocity.
TEMPERAMENT: can be set on each key on the keyboard