Saturday, June 28, 2025
1983 Sequential Prophet 5 Rev 3.2 61-Key 5-Voice Polyphonic Synthesizer w/ MIDI Kit (Serviced) SN 4110
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
Additional SYNTH CITY Listings
Pics of the inside below.
"The Prophet‑5 (Rev 3.2) captures the essence of that classic Sequential tonality—warm, bold, and musical—with the resilience of newer chipset reliability. Whether dialing rich analog basses, lush pads, or punchy leads, this unit delivers that unmistakable vintage vibe. Fully serviced and MIDI-ready, it’s ready for studio or stage. (Serial no. 4110)
Includes ATA flight case as pictured for safe shipping.
Service notes:
-Replaced secondary stage power supply caps
-Removed and cleaned panel board and controls
-Resoldered panel pots
-Cleaned chassis and internally
-Serviced key-bed: cleaned buss bar and key contacts
-Replaced memory battery and loaded preset data
-Checked all calibration and adjusted as necessary"
via this Reverb listing
Additional SYNTH CITY Listings
Pics of the inside below.
"The Prophet‑5 (Rev 3.2) captures the essence of that classic Sequential tonality—warm, bold, and musical—with the resilience of newer chipset reliability. Whether dialing rich analog basses, lush pads, or punchy leads, this unit delivers that unmistakable vintage vibe. Fully serviced and MIDI-ready, it’s ready for studio or stage. (Serial no. 4110)
Includes ATA flight case as pictured for safe shipping.
Service notes:
-Replaced secondary stage power supply caps
-Removed and cleaned panel board and controls
-Resoldered panel pots
-Cleaned chassis and internally
-Serviced key-bed: cleaned buss bar and key contacts
-Replaced memory battery and loaded preset data
-Checked all calibration and adjusted as necessary"
ELI CompuRhythm CR-7030
Note: Auction links are affiliate links for which the site may be compensated.
Playlist:
1. ELI CR-7030 Beat Box Analog Drum Machine Demo by Daniel’s Electronics
via this Reverb listing
"Very rare vintage analog drum machine from the late 70’s it has a very similar sound to the CR line of drum machines from Roland, very good condition for its age minimal scuff marks and scratches around the case. Everything seems to be functioning as it should, volume knob and balance knob are a bit scratchy I’m sure it can benefit from a good cleaning.
Believed to be the first unit to use the term 'Beatbox' and"Compurhythm'-little info on this unit can be found but either ELI copied Roland or vice versa."
Playlist:
1. ELI CR-7030 Beat Box Analog Drum Machine Demo by Daniel’s Electronics
This is supposedly a clone of the Roland CR-78, however functionally it is closer to the CR-68. It has no programming ability and the sounds, while good, are not as varied as the CR-78. The demo includes some slight reverb effect.2. ELI CR-7030 Drum machine Beatbox demo by Momtnz
Rare ELI CR-7030 CompuRhythm drum machine. This unit was also badged as a Gemini and Ness unit. The CR-7030 and nearly three hundred other preset pattern drum machines can be found in the recently released book RHYTHM MACHINES, out now on Amazon.com and Amazon.co.uk.3. ELI Compu Rhythm drum machine quick demo by Momtnz
(AUG 2018) RHYTHM MACHINES 2 - The 1980s Drum Computers is released! Written by Alex Graham. The most comprehensive book on 1980s Programmable drum machines out there, over 200 fact filled ALL COLOUR pages...Available only on AMAZON.COM and AMAZON.CO.UK.
Rhythm machines – the precursor to what we in the modern age refer to as a drum machine. This book documents the emergence of the preset pattern electronic rhythm instruments that (for a time) were used as a viable alternative to the drummer. Contained within are the Rhythmates, Rhythm Aces, Rhythm Boxes, Rhythmers, Rhythm Kings, Rhythm Masters, Donca Matics, Mini Pops and many more. Nearly three hundred rhythm instruments are documented here, with over two hundred pictures and information provided on their country of origin, instrument sounds, patterns and features. The book is a ‘must have’ for collectors, vintage instrument enthusiasts and recording artists.
For information on purchasing this unique book, follow the link here:
Rhythm Machines: The rise and fall of the presets
(Jan 2018) Also available, the newly released book RHYTHM MACHINES III (3) - From Decline To Retro Designs by author ALEX GRAHAM, now found on Amazon.com (USD$26.95) and Amazon.co.uk (19.95 GBP). The book has 150 full colour pages and covers information (with photographs) on all commercially released drum machines released from 1990-2017, featuring Akai, Korg, MFB, Jomox, Elektron, Roland, Zoom, Yamaha and many others including Cheetah, Arturia and Dave Smith Electronics/Linn etc.
Rhythm Machines III: From Decline To Retro Designs
"ELI CR-7030 Compu Rhythm demonstration. Preset box clearly modelled on the Roland CR-68/78 but manufactured shortly afterwards in Taiwan. Good to see an adjustable power option 110/240v selecter fitted. Has an interesting 'Rolling' feature that provides a fill-in pattern to break up the monotony of the preset patterns. In truth there are only three or four patterns that are that great and useable (Rock, Disco etc.). And the ''Guiro' field full of crickets sound is annoying to most but is easy to cancel out. For more information on rhythm boxes why not check out either the all-colour Rhythm Machines book by Alex Graham [links above], or the black and white (cheaper) version called Drumfax 1. Both are available on most Amazon sites."
via this Reverb listing
"Very rare vintage analog drum machine from the late 70’s it has a very similar sound to the CR line of drum machines from Roland, very good condition for its age minimal scuff marks and scratches around the case. Everything seems to be functioning as it should, volume knob and balance knob are a bit scratchy I’m sure it can benefit from a good cleaning.
Believed to be the first unit to use the term 'Beatbox' and"Compurhythm'-little info on this unit can be found but either ELI copied Roland or vice versa."
Keynote Auto-Rhythm – Vintage Analog Drum Machine SN 1230
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
You can find a demo of one previously posted here.
"The Keynote Auto-Rhythm is a charming and rare vintage analog rhythm box with a warm, lo-fi character that's perfect for organ players, beatmakers, and lovers of vintage gear.
It offers a selection of preset rhythms (waltz, bossa nova, rock, etc.), all with that nostalgic, slightly gritty analog tone that cuts through in the best way.
Despite its simplicity, it’s surprisingly musical—and fits right into modern setups for sampling, live looping, or retro grooves."
via this Reverb listing
You can find a demo of one previously posted here.
"The Keynote Auto-Rhythm is a charming and rare vintage analog rhythm box with a warm, lo-fi character that's perfect for organ players, beatmakers, and lovers of vintage gear.
It offers a selection of preset rhythms (waltz, bossa nova, rock, etc.), all with that nostalgic, slightly gritty analog tone that cuts through in the best way.
Despite its simplicity, it’s surprisingly musical—and fits right into modern setups for sampling, live looping, or retro grooves."
Hillwood HR-2 Super Variation - drum machine SN 770349
Note: Auction links are affiliate links for which the site may be compensated.
via this Reverb listing
You can find demos of one in this previous post.
"This Hillwood Super Variation is a unique and rare rhythm machine that blends fully analog drum sounds with clever digital features for a truly distinctive playing experience.
The analog circuitry delivers punchy, vintage percussion, while the rhythm patterns are stored on an IC chip—resulting in surprisingly complex and musical grooves. A built-in LED beat counter adds a nice visual touch during playback.
One of its coolest features: you can trigger multiple rhythms simultaneously for wild, layered beats. You can also selectively mute individual drum sounds for more dynamic control.
Start the rhythm either by touching the metal pad on top or via an external footswitch (not included). This unit runs on 220V."
via this Reverb listing
You can find demos of one in this previous post.
"This Hillwood Super Variation is a unique and rare rhythm machine that blends fully analog drum sounds with clever digital features for a truly distinctive playing experience.
The analog circuitry delivers punchy, vintage percussion, while the rhythm patterns are stored on an IC chip—resulting in surprisingly complex and musical grooves. A built-in LED beat counter adds a nice visual touch during playback.
One of its coolest features: you can trigger multiple rhythms simultaneously for wild, layered beats. You can also selectively mute individual drum sounds for more dynamic control.
Start the rhythm either by touching the metal pad on top or via an external footswitch (not included). This unit runs on 220V."
Vintage Moog Sonic Six Synthesizer SN 1377
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
via this eBay listing
Baldwin Syntha-Sound
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
via this eBay listing
Multivox Basky II SN 0294
Note: Auction links are affiliate links for which the site may be compensated.
via this eBay listing
"Turns on, doesn't really make a whole lot of sound, some squelching now and again at best.
Needs a good service. in decent cosmetic shape though."
via this eBay listing
"Turns on, doesn't really make a whole lot of sound, some squelching now and again at best.
Needs a good service. in decent cosmetic shape though."
Making an Ambient Track With Chase Bliss Onward - Beautiful Errors
video upload by A Last Picture From Voyager
"Exploring the Chase Bliss Audio Onward Pedal: Embracing Errors in Ambient Music
Join me on a sonic journey as I explore the Chase Bliss Audio Onward pedal — a truly unique effects unit from @ChaseBlissAudio that invites us to rethink sound through the lens of freeze and imperfection.
In this video, I experiment with its distinctive features across various instruments, weaving ambient soundscapes shaped by creative errors, glitches, and beautiful mistakes.
Through this process, I show how embracing imperfections can open unexpected doors in experimental music composition, and how everyday sounds can be transformed into a rich emotional tapestry.
From subtle warbles to unexpected shifts, the Onward pedal becomes not just a tool, but a collaborator — encouraging exploration and surprise.
Whether you're a musician, sound designer, or just curious about the creative process behind ambient music, I hope this inspires you to find beauty in musical mistakes.
00:00 How I use Onward Pedal
03:55 I create an ambient track using Onward
You can listen to the full EP "Chase Bliss Journey" on my Bandcamp : https://alpfv.bandcamp.com/album/chas..."
PREVIOUS PAGE
NEXT PAGE
HOME
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
