Midi Bass plays sounds that come from audio information stored in digital memory chips called EPROMs. Each EPROM contains the sound of one particular instrument, and up to four different EPROMs can be plugged into Midi Base at once. There are essentially no limits to the types of sounds that can be stored digitally. 360 Systems has most of the world‘s best-liked bass sounds available for Midi Bass, and many new and unusual sounds are being developed, from synths to percussion to special effects.