There is something unmistakeable about the sound of drum machines produced in Japan during the 1980s - crisp, clean and full of character, each machine was to leave an indelible mark on dance, hip hop, techno, electro, acid and a host of other genres. Their legacy continues today, and we’ve captured the very best of these machines in this Geist Expander - everything you need to leave a bit of history on your productions.