Seiko DS-250

The DS-250 was an electronic keyboard manufactured in 1985[3] by Seiko and was considered a commercial failure.[4] It was capable of generating both digital and additive sounds.[5] It is expandable with two expander units DS-310 and DS-320.[6]

DS-250
ManufacturerSeiko
Dates1985
Technical specifications
Polyphony8 voice
Timbrality1 part
OscillatorSine
LFO1
Synthesis typeDigital Additive
FilterNo
Storage memory4 user memory[1]
EffectsChorus
Input/output
Keyboard61 keys
Left-hand controlPitch bend wheel[2]
External controlMIDI In, out, thru

Features

The unit used additive synthesis for sound generation, chorus and ports included MIDI[7] In, Out and Through, RCA outputs( stereo), Headphones and level controls for both channels. It also has on board speakers.[8]

DS1000 sequencer

A MIDI 1000 note sequencer was also produced for use with the DS-250 in 1986[9] (and other MIDI devices) called the DS1000. It had four buttons Record, play, stop and pause, a tempo slider.[10]

Famous Users

Sounds

Mostly known for its pad and bell type sounds.

References
  1. "Seiko DS250 / DS 310 (1984) | Aerozone JMJ". aerozonejmj.fr (in French). Retrieved 2018-08-20.
  2. "Dave's Seiko crapola". www.umop.com. Retrieved 2018-08-20.
  3. "Seiko DS-250". www.matrixsynth.com. Retrieved 2018-06-05.
  4. "Jean-Michel Jarre's Time Machine". KeyboardMag. Retrieved 2018-08-20.
  5. "Seiko DS-250". www.matrixsynth.com. Retrieved 2018-06-25.
  6. "Seiko DS-250". www.99musik.se (in Swedish). Retrieved 2018-08-20.
  7. "Dave's Seiko crapola". www.umop.com. Retrieved 2018-06-25.
  8. "Dave's Seiko crapola". www.umop.com. Retrieved 2018-08-20.
  9. "Seiko DS250 / DS 310 (1984) | Aerozone JMJ". aerozonejmj.fr (in French). Retrieved 2018-08-20.
  10. "Dave's Seiko crapola". www.umop.com. Retrieved 2018-08-20.
  11. "You searched for seiko - Synthwatchers.com". Synthwatchers.com. Retrieved 2018-06-05.
  12. Inc., Equipboard. "Jean Michel Jarre's Seiko DS 250". Equipboard. Retrieved 2018-07-25.
  13. "SEIKO DS 250". www.jarrography.free.fr. Retrieved 2018-07-25.
  14. "Jean Michel JARRE | Rendez-Vous". Disques Dreyfus (in French). Retrieved 2018-07-25.
  15. "Jean Michel JARRE | Rendez-Vous". Disques Dreyfus (in French). Retrieved 2018-08-20.
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