MATRIXSYNTH

Blue Lantern Gleba VCF // Walkthrough & Demo

video upload by Robots Are Red

"In this video we take a look at the brand new VCF by Blue Lantern Modules, Gleba. Based on the VCF from BLM's Dwarf Star Semi Modular Synthesizer, Gleba crams a lot of fun functionality into only 10hp.

This VCF has:
- Two audio inputs, one with attenuator
- 12db Low Pass/Band Pass/High pass filter with mix & match switches
- A screaming self oscillating resonance sine wave
- Limit switch to squash those middle frequencies for a more metallic-like tone similar to the MS-20
- Two Subharmonics Generators, 1 and 2 octaves lower
- FM modulation input with attenuverter
- CV control over resonance and frequency (with 1v/oct tracking)
- A built in VCA that is bypassed when left unpatched.

Filter, crunch up, or add character to your sounds. Use it as an oscillator, a crunchy rudimentary EQ, as a nice squelchy filter, and so much more.

Special thanks to Blue Lantern for providing the the module for the video."

Update:

Gleba Part 2 // Multi-Mode VCF/VCA by Blue Lantern Modules - Patch tips and Q Trimmer Demo

video upload by Robots Are Red

"It smells like it is time for #2! In this video we look at a few more patch examples with Gleba, as well as toning down the resonance to more classic filter levels with the Q Trimmer.

The patches covered in this video are an acid bass, gated drums, and chords through Gleba."

Korg Poly-61 Analogue Programmable Polyphonic Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via Switched On Reverb

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"This Poly 61 is fully functional and in good condition

The KORG Poly-61 is a programmable polyphonic synthesizer released by Korg in 1982 as their follow-up to the Polysix. It features 2 DCO's per voice, a discrete resonant low-pass VCF, and is the first synth by korg to be designed around the parameter menu & value selector user interface."

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Roland JX-3P 61-Key Programmable Preset Polyphonic Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via Switched On Reverb

Note auction links are affiliate links. See the site's privacy policy for more info.

"This JX-3P is fully functional and in great condition.

The JX-3P is a six voice polyphonic analog synthesizer with a single slider editing interface. It features 2 digitally controlled oscillators with sync and cross-mod, sawtooth, square, pulse waveforms, a noise generator, 1 LFO, 1 ADSR and a 24dB OTA based (IR3109) Lowpass filter. It has 32 factory and 32 user writable patches of memory and a built-in 128-step polyphonic sequencerer with external trigger input.

Its architecture is similar to that of the Juno series synthesizers produced around the same time. Both machines employ the same interval-timer DCO technology, have a single digitally generated envelope generator, the Roland IR3109 low-pass filter, a discrete VCA, and on-board stereo chorus effect. The Juno line had only a single DCO (with sub-oscillator) per voice, while the JX-3P had two distinct DCOs with detuning and several cross-modulation modes. Also unlike the Juno, the JX-3P allows the pitch of either oscillator to be controlled by its envelope generator."

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1986 Roland JX-8P Analog Synthesizer SN 604298

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via SYNTH CITY Reverb

Note auction links are affiliate links. See the site's privacy policy for more info.

"The JX-8P is a lovely sounding 8 voice analog poly synth with similar voice architecture to the JX-3P and Roland Juno series. The voice is actually quite a bit more complex than the Junos. What is gained in oscillators and modulation sources is lost in the real time control, however. There are only program buttons where numbers are typed and a single parameter slider is adjusted. This keyboard can be expanded with the Roland PG-800 programmer or connected up to an IOS app through MIDI for full access to all the controls.

This keyboard overall is in excellent condition. All of the membrane buttons and sliders function perfectly. 2-prong AC power cable included."

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1988 Roland D-50 Linear Synthesizer w/ Extra ROM Cards SN 840926

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via SYNTH CITY Reverb

Note auction links are affiliate links. See the site's privacy policy for more info.

"The D-50 is a very interesting digital synth that combines PCM samples with Roland's linear arithmatic synthesis method, a style of digital subtractive synthesis. The PCM samples are providing the attack sound and the LAS section will ring out or sustain. In practice some very lovely and complex sounds are easy to achieve with the D-50.

This synth is in great shape and works perfectly with just some minor cosmetic wear for its age. Includes 4 extra rom cards as pictured and original AC power cable."

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Roland JD-800 Programmable Linear Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Like its cousin the D-50, it is a digital 'linear synth' with analog filtering. It has all of the vibe, depth and nostalgia of a D50, with more modern editable parameters on the face of the synth - Not to mention the presets are pretty incredible. Great pad machine - ripping leads.

For those in the know, this thing is one of Roland's crowning achievements. However, also those in the know will know that the key-beds were definitely not: they are notorious for the deteriorating red glue that wrecked the beds of every single one over time. This one is no different, however I have carefully removed all of the red glue and attempted to restore the keys to working condition. That being said they still have some issues with velocity sensitivity, and aftertouch. However, those with a midi interface and or keyboard can easily have this thing fully shredding in no time."

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CASIO CZ-101 Phase Distortion Synthesizer w/ Updated Display & Gold Plated Outs

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via this auction

"Fully working Casio CZ-101. It was upgraded with a new blue display and new gold plated audio outs. The new display is easy to read in any condition, it makes a big difference from the original display. It comes with power supply."

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Touché x Prophet Rev2

video uploads by Expressive E

"This video showcases mapping presets from our free Touché Hardware Preset Pack which contains 24 presets for Rev2 by Dave Smith Instruments / Sequential. Based on the factory presets from Rev2, they cleverly map Touché's axes to relevant parameters.

The presets need to be loaded inside Touché's companion app Lié. When recalling them, a Program Change is sent to your Rev2 in order to dial up the corresponding factory sound.

The download link is available in your Expressive E user account as soon as a Touché is registered. https://www.expressivee.com/myproducts

Hardware Mapping Presets are only supported by our classic Touché flagship controller, not by Touché SE."

A Spotterʼs Guide to HIPs and Strings

Pictured: 1974 Hohner International String Vox (also see one posted here)

via Zen & the Art of Synthesizer Maintenance

"Anyone interested in 1970s-80s Hohner/Logan/ELKA string machines and Hohner/ELEX/Excelsior electronic pianos (some with strings voices), who has been confused by their rebadging relationships and the often dubious information online, might like to consider this new article summarising my research over the last few years:

A Spotter’s Guide to HIPs and Strings

https://zasm.earth/hipstrs

Models covered:

• Hohner International String Vox
• Hohner International String Melody and String Melody II
• Hohner International Electronic Piano K1 (HIP / HIP II / K1)
• Hohner International K2 (Stringvox)
• Hohner International Electronic Piano K3
• Hohner International String Synthesizer K4
• Hohner String Performer
• Hohner International EK61 'Globetrotter'
• Hohner International EK 2
• Hohner C86"

and

• ELKA Rhapsody 610
• Logan String Orchestra"

"Not long after the technology became reasonably affordable, Matth. Hohner AG sold several electronic piano and string machine models under their ‘Hohner International’ brand, apparently aiming at cheapness and portability compared with their acoustic and electromechanical keyboards. Most of these were either rebadged ELEX (Excelsior) products or perhaps Hohner-inspired modifications of them. Some were rebadged ELKA and Logan instruments, and they produced a couple of their own designs. [1] (Hohner did also produce organs, bass keyboards and pedalboards, acoustic and electromechanical piano-like instruments amongst others, but thatʼs not todayʼs topic.)

The plethora of these instruments from different manufacturers, some sold as Hohner, some not, some easily distinguished, some not, some modified either inside or out over their production span, has led to a certain amount of confusion in the years since, and poses a puzzle for people interested in obtaining and/or repairing them. But perhaps itʼs possible to construct a comprehensive overview which will allow them to be identified and distinguished?"

Read more at https://zasm.earth/hipstrs.