Korg DDD-1
The DDD-1 (Dynamic Digital Drums) is a sampling drum machine introduced in 1986 by Korg. It offers more features than the DDD-5, and is highly regarded for its sounds and sequencer. The unit also features a limited sampling option, for adding sounds to the drum machine. It also has fully featured MIDI implementation, six assignable outputs, and a backlit LCD screen. Sounds. Highly regarded for its sounds and sequencer, it features 18 on-board sounds. They include kicks, snares, toms, rimshot, closed hi-hats, open hi-hats, ride, crash, claps, cowbell, tambourine and cabasa. Parameters, such as decay  and tuning, can be edited. Additional sounds can be added using the four ROM expansion slots. Controls. Pitch, dynamics, decay, roll, and flam. Sampling. The sample rates are: 13.6, 23.1 kHz. For a maximum time of 3.2 seconds the optional DSB-1 sampling board installed. Sequencer. Sequencer patterns can be recorded in 2 modes Official brochure. http://www.korgforums.com/support/brochure/DDD-1_1986_Brochure.pdf Further reading. https://www.korg.com/us/support/download/manual/1/345/3700/