1985 saw the DSM8+ (Auto Tom) release, a single voice module with a programmable run generator variable in number of steps and number of beats to provide a selection of tom-tom drum rolls in increasing or decreasing pitch using just a single electronic drum pad. The DSM32x4 rack was a programmable single voice module with sound generation that included FM-type modulation, and up to 128 user programmable patch locations stored in the rack's memory.

This operating manual provides - for the first time - a guide to operate all four released DSM racks, packed with photographs and additional sourced information to enable the user to get the best out of their vintage drum synths. As an additional bonus, the manual also includes a comprehensive history of MPC Electronics featuring all the company's releases designed by the innovative Clive Button from the introduction of The Kit in 1982 through to the end of the company in 1986.