DR 220a
TheBoss DR-220 Dr. Rhythmis a series of two budget-priceddigitaldrum machinesdeveloped and manufactured byBoss Corporation(a subsidiary ofRoland Corporation) beginning in 1985. The DR-220 derives from the earlierDR-110(1983) without rotary controls but the same LCD "matrix" display panel, a much simplified version of that used in devices such as theRoland TR-707.
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We're compiling the full history of the Roland DR 220a. Check back soon for production timeline, variants, notable users, and cultural significance.