Sequential Circuits Prelude

SCI Prelude Image

The Prelude is a 4-section orchestral synthesizer consisting of Piano, Organ, Brass and String sections. Like many other similar 4-section synths of this type, all 49 keys will play simultaneously for 49-note polyphony. Two of the sections can be played at the same time. Though editability and storage are limited, it has an on-board chorus/flanger effect as well as a 7-band equalizer. The string sounds are the best feature of the Prelude, and the on-board effects and EQ are great for thickening and modulating the string sound beyond the scope of traditional orchestral sounds. The Prelude has a very appealing and intuitive Sequential-esque layout and appearance and is definitely one of the finest orchestral-type multitimbral synths among others in its class.

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4 Visitor comments
tyson griffin
October 23, 2013 @ 11:53 am
I picked one of these up a year ago and though it is mostly functioning, there are two rocker switches that are missing that are responsible for selecting the sounds (unfortunately for the string section). Is there anybody out there that is parting one of these out? I'd love to get a hold of these parts. Thanks.
bandenoire At gmail.com

btw, this is by far one of my favorite string machines due to the eq circuit! it makes it extremely versatile. flange/chorus are great - and external input as well!
micke
January 14, 2011 @ 12:45 pm
The Prelude is a rebadged SIEL Orchestra 2 with a new paint/silk-screeming job.
Alex MacLeod
February 19, 2009 @ 7:40 pm
Oh yeah, in addition to my previouse post..... the piano [beep] s on this synth, and wine country productions will NOT fix this synth. because its a SIEL.
Alex MacLeod
February 19, 2009 @ 7:19 pm
this synth is great, the flange is out of this world and the strings are to die for, very 80's B movie. on top of that the organ and horn sections hold their own even without being mixed with the strings. the organ section gets it right (at least pretty good for the money) I usually blend "pipe" and "organ 1" with the EQ set to bleed the lows to get a nice combo organ sound. the LFO can be set to mid speed and mid intensity to produce combo like vibrato and chorus can be added to the mix for a Lesleyish effect. AND (drum roll please) my prelude can play all 4 channels simultaneously! the only down sides are that you cant blend the channels, they only have preset volumes. another hindrance is that the pitch and LFO are on sliders instead of wheels which does not lend its self to modern playing styles. But on the bright side the board is encrusted with trim pots and for those with the know how and a few spare parts these provide perfect circuit bending options.
 
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  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 49 voices
  • Oscillators - 1 per voice
  • Effects - Chorus / Flanger
  • Memory - None
  • Keyboard - 49 keys
  • Control - No MIDI
  • Date Produced - 1982

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