Tuesday, December 05, 2023
Moog Mariana Bass Synthesizer Review
video upload by Molten Music Technology
"Mariana is a dual-oscillator, dual-layer software synthesizer that pulls in the Taurus, Minitaur, Model D and Sub Phatty for some seriously analogue monophonic bass synth action."
See the announcement post here.
"My First Modular" Open Source Eurorack System by Daniel Llermaly aka Oficina de Sonido
video upload by Oficina de Sonido


Currently on Kickstarter
Oficina de Sonido created by Daniel Llermaly is a project centred on designing music-making tools with Open source in mind. Based on Mexico City
My First Modular, your gateway to the Eurorack synths.
We know that Eurorack Synthesis (or Modular Synthesizers) can seem inaccessible due to its reputation for being expensive and complicated.
That's why we decided to design a modular system that is affordable without compromising on quality. My First Modular is a low cost eurorack modular system, with a precise selection of modules for beginners, versatile and with simple and colorful interfaces. As we are designers and musicians we have made an instrument with the basics to express your musical creativity.
This Opensource Synth design proposal aims to be the most accessible eurorack modular system that exists, where anyone with a little knowledge can use our templates and codes to produce their own modules and, like us, improve them and make them available to the whole community.
This crowdfunding project will allow us to finance the development and manufacturing of the first complete systems, therefore the current price is only for this campaign. Most likely in the future the price of the system and the modules may vary.
Key Features
Affordability: We have designed our Eurorack Module system to be the most affordable option for electronic music lovers. We believe everyone deserves the opportunity to experiment with electronic sounds without going broke.
Ease of Use: Our system is beginner-friendly, which means that even if you're new to Eurorack, you'll be able to start creating music right away. No advanced technical knowledge is required. We deliver the modules pre-built without the need for soldering.
Sound Quality: Despite its affordable price, we have not sacrificed quality. We have carefully selected modules and resources that guarantee a good sound and a satisfying musical experience.
Open Source: crowdfunding this project aims to design an opensource system supported by and released to the community.
Quetzalcoatl v0.5: Open Source Harmonic Vector Synthesis Plugin
video upload by modularsamples
"A vector synth with harmonic pitch controls.
https://github.com/publicsamples/Quet...
https://modularsamples.gumroad.com/l/..."
"Quetzalcoatl is a Harmonic Vector synthesiser plugin (VST/AudioUnit) for Mac OS & Windows. It features:
An 8 stage crossfading oscillator
Harmonic pitch controls for each stage
Pan per stage
Multistage, multimode filter
4 Multifunction modulation sources
A large and diverse sound library
Quetzalcoatl is open source and can be downloaded freely from my GitHub page, this listing is for an expanded version with additional sounds and presets."
Elektron Syntakt w/ Original Box SN A3S22324B138-74
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This is a supporting member listing.
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This is a supporting member listing.
Roland Sound Expansion Orchestra M-OC1 SN ZH92234
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"The Roland M-OC1 offers a complete array of both solo and ensemble orchestral instruments including brass, woodwinds, strings and percussion."
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"The Roland M-OC1 offers a complete array of both solo and ensemble orchestral instruments including brass, woodwinds, strings and percussion."
Polivoks FAEMI-M Soviet Vintage Analog Polyphonic Synthesizer
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video upload by Universal Audio
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Update: The listing has the FAEMI-M as being from 1968. It seemed a little early to me so I checked my copy of Peter Forest's The A-Z of Analogue Synthesisers. It's listed but without a production date. Right before the entry for the FAEMI-M is the FAEMI children's keyboard which was released in 1972. I then checked http://www.ruskeys.net, but no date is given either. Previous posts refer to the FAEMI-M being from the 1970s. Sound on Sound's article on the Polivoks mentions the FAEMI-M but w/o a date. If anyone defininitively knows, feel free to leave a comment. A couple of interesting comments from that Sound on Sound article:
"The Polivoks is a duophonic synthesizer designed by Vladimir Kuzmin, an electronics engineer who had been the bass player and sound engineer in his student band. Having graduated in 1976, he was inspired to apply for work at the Urals Vector Company by the inventor of the FAEMI, the first commercially successful Russian electronic keyboard. That man was Vladimir Lugovetz, the Director of the bureau that controlled development of electronic instruments at the Vector company, and the father of Kuzmin's future wife."
Followed by "Interviewed by Polish synthesizer enthusiast and supplier Maciej Polak, in 2003, Kuzmin explained: "My first task was to design the spring reverberator, but I also tried to improve the design of FAEMI‑M in order to obtain some modern effects such as portamento and filtering."
Auction details:
"So, the good news: All four oscillator generators are working; I have cleaned the potentiometers, and only one couldn't be fixed, and just one is slightly crackling on movement. I replaced the output jacks with the standard 1/4" jack.
Things I couldn't fix: The vibrato section is not working. Several keys are not working at all, and some of them work when pressed harder.
The external original power supply is unusual – it is combined with the scale pedal in one housing. The pedal works, but it also has a slight crackle on movement.
To see and understand the objective condition, I recorded a video. Please watch below, where I aim to show the specific condition of the device. Despite the problems, it is still alive, and I believe you can either repair, sample, or simply enjoy the time with such an old and unusual synthesizer, even in its current state. Of course, due to these reasons, I have also objectively reduced the price.
The package is fully loaded: synthesizer, original power supply/volume pedal, original 5-Din cable to connect the pedal to the synth, power cable for the power supply, original wooden hard case
Here is some official spoecifications:
Specifications:
Keyboard volume - 4 octaves.
Full sound range (all the registers are switched on) - from F in the controctave to E in the fifth octave.
Output voltage at the load of 100 kOhm - not less than 0.1 V.
Power supply:
-from an external DC source - 12 V +10\-20 %;
Power consumption from AC mains - not more than 15 W.
Current consumed from the battery of dry elements - 350 mA.
Overall dimensions - 610*280*110 mm.
Weight - not more than 10 kg."
video upload by Universal Audio
via this auction



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Update: The listing has the FAEMI-M as being from 1968. It seemed a little early to me so I checked my copy of Peter Forest's The A-Z of Analogue Synthesisers. It's listed but without a production date. Right before the entry for the FAEMI-M is the FAEMI children's keyboard which was released in 1972. I then checked http://www.ruskeys.net, but no date is given either. Previous posts refer to the FAEMI-M being from the 1970s. Sound on Sound's article on the Polivoks mentions the FAEMI-M but w/o a date. If anyone defininitively knows, feel free to leave a comment. A couple of interesting comments from that Sound on Sound article:
"The Polivoks is a duophonic synthesizer designed by Vladimir Kuzmin, an electronics engineer who had been the bass player and sound engineer in his student band. Having graduated in 1976, he was inspired to apply for work at the Urals Vector Company by the inventor of the FAEMI, the first commercially successful Russian electronic keyboard. That man was Vladimir Lugovetz, the Director of the bureau that controlled development of electronic instruments at the Vector company, and the father of Kuzmin's future wife."
Followed by "Interviewed by Polish synthesizer enthusiast and supplier Maciej Polak, in 2003, Kuzmin explained: "My first task was to design the spring reverberator, but I also tried to improve the design of FAEMI‑M in order to obtain some modern effects such as portamento and filtering."
Auction details:
"So, the good news: All four oscillator generators are working; I have cleaned the potentiometers, and only one couldn't be fixed, and just one is slightly crackling on movement. I replaced the output jacks with the standard 1/4" jack.
Things I couldn't fix: The vibrato section is not working. Several keys are not working at all, and some of them work when pressed harder.
The external original power supply is unusual – it is combined with the scale pedal in one housing. The pedal works, but it also has a slight crackle on movement.
To see and understand the objective condition, I recorded a video. Please watch below, where I aim to show the specific condition of the device. Despite the problems, it is still alive, and I believe you can either repair, sample, or simply enjoy the time with such an old and unusual synthesizer, even in its current state. Of course, due to these reasons, I have also objectively reduced the price.
The package is fully loaded: synthesizer, original power supply/volume pedal, original 5-Din cable to connect the pedal to the synth, power cable for the power supply, original wooden hard case
Here is some official spoecifications:
Specifications:
Keyboard volume - 4 octaves.
Full sound range (all the registers are switched on) - from F in the controctave to E in the fifth octave.
Output voltage at the load of 100 kOhm - not less than 0.1 V.
Power supply:
-from an external DC source - 12 V +10\-20 %;
Power consumption from AC mains - not more than 15 W.
Current consumed from the battery of dry elements - 350 mA.
Overall dimensions - 610*280*110 mm.
Weight - not more than 10 kg."
Oberheim OB-12 49-Key 12-Voice Synthesizer
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"Sound Demos from Jexus on youtube [posted here] are what made me want it in the first place. This is not the unit in the listing shown in the videos. (For sound Demonstration and educational purposes only.)"
via this auction
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"Sound Demos from Jexus on youtube [posted here] are what made me want it in the first place. This is not the unit in the listing shown in the videos. (For sound Demonstration and educational purposes only.)"
Roland A-01 Chiptune Synthesizer Midi Controller Sequencer & K-25m Keyboard
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"A fun little monophonic digital chiptune synthesizer/sequencer with a cool waveform visualizer and built in speaker. Heavy duty sturdy metal enclosure. Can be powered by 4 AA batteries"
via this auction
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"A fun little monophonic digital chiptune synthesizer/sequencer with a cool waveform visualizer and built in speaker. Heavy duty sturdy metal enclosure. Can be powered by 4 AA batteries"
Korg DSM-1 Digital Sampling Synthesizer Module SN 001290
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RS060 Dr Böhm Dynamic 12/24 (Orla DSE): German EFF EHM
video upload by rejected synths
"Talking synths from Germany, quite a few companies come to mind: Waldorf, Doepfer or Vermona are popular ones still around and there are a lot more, some of them long gone like pioneering PPG. One company that hardly ever makes the list is Dr Böhm Organ. This might be down to the fact that Böhm weren’t exactly a company focused on synths at all but rather one that offered DIY kits for people to build themselves electronic organs.
Strictly speaking these organs were ‘synths’ too and when the 80s arrived, Böhm, just like companies like Sequential, Roland or Yamaha, started to utilize digital control and later digital synthesis in their ‘synths’ too, albeit utilizing interfaces more akin to traditional organs.
One other similarity to ‘real’ synth companies was that they also started to offer expander modules, that could be controlled by midi, expanding the variety of sounds while at the same time saving on space (no keyboard) and costs.
This is where today’s synth comes from. The Dynamic 12/24 was meant as an affordable way for Böhm’s customers of home owners and entertainers to expand their setup with some more organ but also other sounds like strings, e-pianos and some 80s-ish synth staples.
The technology used was taken from one of it’s electronic organs and while clearly trying to hide it (even going as far as filing the markings off the ICs) it was Yamaha FM Chips doing Yamaha sounding 4OP FM. The good thing is of course, that this is actually a great basis for a very wide range of sounds, especially as Böhm was kind enough to add user memory to enable creation and saving of your own patches. Also, editing can be done via midi and there are editors available too. What makes the 12/24 stand out from the crowd of 4 OP modules most though is the unique Böhm analog bucket brigade delay style ensemble effect, that ‘warms’ the FM sound.
Last but not least, the Dynamic 12/24s seem to be widely available and dirt cheap too, at least here in and around Germany. So grab one before they become cool, or anyone finds out they are actually the same as the Orla DSE, a synth that has been used by a guy that goes by the name of Richard David James…"
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© 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