It uses analog synthesis rather than samples to produce sound. It imitates acoustic percussion: the bass drum, snare, toms, cymbal and hi-hat (open and closed). The sounds cannot be edited.[1]MusicRadar wrote that "the snare snaps and cracks, the kick offers a satisfying thud, and the metallic hats sizzle".[1]
Sequencer
Rhythms can be programmed using the sequencer, which includes controls for accents.[1] The sequencer can hold 32 patterns in memory, and patterns can be sequenced to create songs.[1] The TR-606 was designed to be used with the Roland TB-303 bass synthesizer, and can be synchronized using DIN sync.[1]