MATRIXSYNTH: Seiko DS-320 Digital Sequencer (expansion for DS-202/250 polyphonic synthesizer) SN 32003431

Saturday, July 03, 2021

Seiko DS-320 Digital Sequencer (expansion for DS-202/250 polyphonic synthesizer) SN 32003431


SEIKO キーボード カタログ 昭和58年10月 video upload by Happy Lucky Soul チャンネル



via this auction

Note the listing is for the sequencer only, not the complete system in the video above. See this post for a demo of another system.

"The Seiko 202/250 (maybe more?) are quite rare on their own merit, so the expansions (the DS-320 and DS-310) are even rarer. Since these units didn't do very well commercially, they weren't produced for very long - hardly any were collected/kept. If you find some demo's of what these are capable of, you'll definitley be itching for one - and this sequencer adds to the madness. The whole setup was supposed to rival the Synclavier (with varying results) but really amounts to some very interesting 80's additive synthesis. JM Jarre used this on a couple of his notable compositions (but, as is the case for just about every synthesizer)..."

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