Released in 1982 the Electro Harmonix DRM 15 Digital Rhythm Matrix is a versatile drum machine in a pedal format. The unit offers 4 style categories with 4 variations of each style. It also allows for some flexibility with how the user uses it or in simpler terms minimal editing by way of the delete button.
The unit also has the famous Space Drum sound found on other products from Electro Harmonix. the Space Drum sound has a dedicated on/off switch when it is not being used. The DRM-15 also offers lock IN and Clock Out for syncing with other rhythm machines and analog devices.