The Official Sequential/DSI Forum

Timeline of all Sequential Circuits products - at least since the revival?

Hi folks,

I'm curious to know when each Sequential synth was introduced. For the models that are no longer in active production, I'd also be curious as to when they were last manufactured.

The internet has much of this data. I have the year of introduction for 30 products from Sequential Circuits and Dave Smith Instruments. For 11 of those, I have a year end.

This still leaves about 18 products (that I know of) where there doesn't seem to be any information online as to when the device was introduced (or discontinued).

Has anyone pieced together a definitive guide?

I'd like to include pre-DSI SCI, DSI, and modern SCI.

Brian

I suppose it would make sense if I just list the products that I don't have an original release date for...

Pro 3 SE
Pro 3
Prophet 12 LE
Prophet XL
Prophet X
Prophet Rev2 desktop
OB-6 desktop
OB-6
Prophet-6 desktop
Prophet-6
DSM03 Feedback module
Pro 2
Prophet 12 keyboard
Prophet 12 desktop
Prophet '08 desktop (let me guess, was it released in 2008?)
Mopho SE
DMS02 Character module
DSM01 Curtis Filter module

I suppose it would make sense if I just list the products that I don't have an original release date for...

Brian, it's not too difficult to find dates for many of these. It does depend on how detail you want to get. One simple source (at least without going to archives) is the News section of sequential.com (going back to 2013). Another spot to check is introduction videos.

It you want launch dates, here are some from glancing at the headers of the News section (the Pro 3 was in my head, already, since I picked up an early Pro 3 SE) and some ship dates since they were also posted:

Pro 3 SE — Jan 2020, shipped Mar 2020
Pro 3 — Jan 2020, shipped Jan 2020
Prophet 12 LE — Nov 2018
Prophet XL — Oct 2018, shipped Nov 2018
Prophet X — May 2018, shipped Jun 2018
Prophet Rev2 desktop — Aug 2017, shipped Oct 2017
OB-6 desktop — Jan 2016, shipped Sep 2016
OB-6 — shipped Mar 2016
Prophet-6 desktop — Oct 2015, shipped Nov 2015
Prophet-6 — Jan 2015, shipped May 2015
DSM03 Feedback module — shipped Oct 2016
Pro 2 — shipped Aug 2014
Prophet 12 keyboard — Jan 2013, shipped Jun 2013
Prophet 12 desktop — Dec 2013
Prophet '08 desktop (let me guess, was it released in 2008?) — Jan 2008, shipped Mar 2008
Mopho SE — Oct 2013
DMS02 Character module — shipped Jan 2015
DSM01 Curtis Filter module — shipped Aug 2014

Cheers.
Jeff Kellem—Typeface designer, Composer, Pianist, Analog synths, Dancer
https://1403.slantedhall.com/ | https://slantedhall.com/

If you wanted definitive dates, then the obvious means would be by directly contacting Sequential.
The Musical Synthesizer YouTube Channel:
https://www.youtube.com/channel/UChLGwGiRVs7rlZXnOG9_mUw

The Musical Synthesizer Blog: https://themusicalsynthesizer.wordpress.co