Syntech/Chroma Cult Schematics & Source Code

via Chris Ryan on the Rhodes Chroma list: "Ken Ypparila has kindly contributed the schematics and hex source for the Syntech (AKA Chroma Cult, AKA KMX) MIDI Retrofit."

Syntech Chroma Cult - Rhodes Chroma MIDI Interface

images via this auction

"Rare Midi interface for the Rhodes Chroma synthesizer."

Update via Chris Ryan in the comments:
"Syntech is a long-defunct company that initially produced the Chroma MIDI interface; Ken Ypparila, a former employee, continued manufacturing them and produced another batch in 2001. I'm no longer in touch with him, so I'm not sure if he has any left. These days, the CC+ is the way to go for MIDI on the Chroma; you get much more as well. — Chris"

Paul T Schreiber of Synthtech / MOTM Retires From The Synth Business

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A post shared by Paul T Schreiber (@synthesistechnology)

"After 27 years, I have retired from the synthesizer business. I still have a #day_job which will last until Dec 1st. The last set of 16 modules shipped to Patchwerks in Seattle, including the last E520 Hyperions.

Is there a chance someone will buy my IP and continue the product like? I keep hoping. Thanks to everyone who were friends and customers."

---

The man behind MOTM and Synthtech/Synthesis Technology retires. Paul Schrieber was making modular synths in the MOTM 5U format before eurorack took off. He essentiall started his own format, 5U in height like Moog's MU 5U but different. See this old post for a pic of different modular formats. He made his modules available in both DIY and finished form. You all should be familiar with MOTM and Synthech if you are regulars of the site. If not, see the MOTM and Synthech labels for posts over the years.

Since the launch of this version of MATRIXSYNTH back in 2005, there have been a total of 831 MOTM posts, and roughly 367 Synthtech posts, including this one. I say roughly as there was another Synthtech that made the Chroma Cult - Rhodes Chroma MIDI Interface, that shares the Synthtech label I used to get the count. The first post to mention MOTM dates back to This EAR post on July 30, 2005, the second to MOTM Madness - Featuring Yamaha GX1 Filter clone on August 4, 2005. Sadly the mp3 linked there is gone. People let their sites go unfortunately. The first post to mention Synthtech is the Epic Son video by John L Rice from back on August 2, 2011. His designs also made it into non modular synths like this Studio Electronics Omega 8 w/ MOTM CS80 & 440 Filters.

Cherry Audio | Introducing Crumar Spirit with Tim Shoebridge

video upload by Cherry Audio

"Crumar Spirit by Cherry Audio captures the unique sound and features of the exceptional analog monosynth from 1983, originally designed by some of the most legendary figures in the synth industry. Spirit is a gateway to sonic experimentation. It is not a polite instrument. Nor is it clean, safe, or obvious. However, twist a few knobs and it will reward you with some of the most colorful sounds you have ever heard from a virtual analog software synthesizer.

https://cherryaudio.com/products/spir...

00:53 - Music Intro by Tim Shoebridge
02:05 - Introducing Crumar Spirit by Cherry Audio
03:28 - Spirit Signal Path
05:49 - Mod X
08:07 - The Oscillators
13:40 - The Filters
20:34 - Audio Mixer
21:14 - Shaper Y
26:20 - Arpeggiator
30:15 - Voice Modes and Multi-Voice Cycling
31:04 - Matrix Z Modulations
31:45 - Dual Effects Chain
34:42 - Conclusion"

Cherry Audio | Crumar Spirit

video upload by Cherry Audio

Cherry Audio | Spectres Preset Pack for Crumar Spirit by James Dyson

video upload by Cherry Audio

"100 additional presets for Cherry Audio's Crumar Spirit synthesizer by James Dyson that showcase its darker and more atmospheric side in nine categories. Explore more advanced modulations, integrated effects, rhythmic arpeggios, and aftertouch performance features.

Just $9.99, exclusively from https://store.cherryaudio.com/presets...

18 Arps
9 Basses
5 Brass
8 Chords
10 Keys
9 Leads
17 Pads
14 Polyphonic
10 SoundFX"

Crumar Spirit by Cherry Audio: The rare Spirit reborn! (Part 1)

video upload by CatSynth TV

"We are proud to preset the new Crumar Spirit by Cherry Audio, a meticulous software recreation of the unique, quirky and elusive Crumar Spirit analog synthesizer from the early 1980s. This is a two-part series. In Part 1 we go over most of the original-instrument features (minus the arpeggiator).

Part 2, covering the remaining features and exploring factory presets, will be released soon.

To find out more about Crumar Spriit by Cherry Audio, please visit: https://cherryaudio.com

00:00 Introduction
00:34 A brief history
01:54 Overview of Crumar Spirit by Cherry Audio
02:35 Oscillators
09:59 Upper filter
12:41 Lower filter
20:02 Noise generator
23:43 Shaper Y (and Shaper Y audio path)
33:24 Mod X
41:24 Conclusion"

Merch: https://shop.catsynth.com



Crumar Spirit by Cherry Audio is a meticulously crafted virtual recreation that captures the unique and captivating features of the exceptional analog monosynth from 1983, originally designed by some of the most legendary figures in the synth industry. In collaboration with Crumar, we have reopened a time capsule to revive this Italian cult classic and thoughtfully elevated it with Cherry Audio's signature style.

Spirit is a gateway to sonic experimentation, whether you are after wild, unpredictable timbres or warm, analog tones. It is not a polite instrument. Nor is it clean, safe, or obvious. However, twist a few knobs and it will reward you with some of the most colorful sounds you have ever heard from a virtual analog software synthesizer.

Crumar Spirit includes over 430 sensational presets in 12 categories

Producers will find immediate inspiration in Spirit's extensive preset library, created by a talented sound design team led by veteran sound designer James Terris. And don't miss the Spectres for Spirt Preset Pack (sold separately), featuring an additional 100 additional presets by James Dyson.


A "Little Synth" Designed by Legends

Crumar S.P.A., based in Castelfidardo, Italy, was a notable player in the 1970s musical instrument industry, specializing in home organs, digital pianos, and multi-sound keyboards, and with a significant focus on the U.S. market. Sante Crucianelli, the son of the owner, became the driving force behind Crumar's design and strategies. Crumar became known for its open lab culture, frequently allowing competitors to test instruments, a rare practice for the time. Another key figure during this period was Luciano Jura, a designer, musician, and programmer. Luciano became crucial as Crumar's point of contact with synth pioneer Bob Moog, which led to a collaboration that resulted in the creation of Crumar's Spirit synthesizer.

Although many details have been lost due to the passing of key figures and the closure of Crumar, the development of the Spirit synthesizer in the U.S. is well documented. Key contributors to the project, codenamed "Little Synth," included Moog engineer Jim Scott, Moog clinician and electronic music historian Tom Rhea, and Bob Moog himself. The project likely began around 1980 or 1981, and incorporated elements from earlier projects by Scott and Moog. Rhea played an essential role in defining the Spirit's key features, such as the keyboard scanning setup, panel layout, functional architecture, and technical documentation. The Crumar Spirit went into production and was released in late 1983.

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