RSF Kobol internal "sequencer" explained. #rsfkobol #rsfkobolexpander

video upload by analogia pl

"Kobol's 'sequencer' explained in less than a minute."

EMS Synthi vs. RSF Kobol (aka England vs. France)

video upload by analogia pl

"This is one of many sound studies I’ve called England vs. France, which will eventually be released as an album. I’ve used EMS synths for over two decades, but my life changed after I came into possession of the Kobol — one of the least popular, yet absolutely fascinating, monosynths."

RSF Kobol with Roland TR-909 and CR-8000

video upload by analogia pl

"I just don’t remember how they all were triggered. I believe it was trigger to Kobol and DIN SYNC or MIDI to the Rolands (8000 has Tubbutec MIDI)."

RSF Kobol with TR-606 & Additional Demos

video upload by analogia pl

RSF Kobol demo clips


EMS Synthi vs. RSF Kobol

1978 RSF Kobol

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via this Reverb listing

"Here is a rare occasion to buy a RSF Kobol and in full working condition. Internal battery has been replaced. Cosmetic condition as per the pictures, close to excellent apart from the cracks due to its age. It comes with its original paper manual (not in the pictures). The RSF Kobol is one of the very best vintage monophonic synths ever designed with its distinctive powerful and precise sound and one of the sexiest User Interface ever designed. Plus it has 16 memory slots and the ability to sequence these slots making it one of the most powerful sequencers of its time. You can trigger it from any 5V clock (eurorack standard).

In addition to the original paper manual this Kobol also comes with a very sturdy, very heavy (27 kgs !!) custom wooden box with foam inside, however you can have the it shipped without the case if you prefer so, since the case alone weighs more than twice the synth itself!"

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Rsf Kobol

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via this VEMIA listing

Click the auction link on top when you get there for additional listings.

VEMIA is Peter Forrest's auction house. He is the author of The A-Z of Analogue Synthesizer Books.

"Here is a very rare occasion to buy a RSF Kobol and this one is in full working condition. Internal battery has been replaced. Its worse cosmetic flaw being the crack in its right flank as shown in the pictures, which has not cracked further for the last 20 years. Feels totally solid. Otherwise the cosmetic condition is excellent. It comes (not in the pictures) with its original paper manual and in a very sturdy custom wooden box with foam inside that is also very heavy. So if you want to ship you will have to tell us if you want the box or not as since it weighs almost as much as the synth it will have a significant impact on the shipping cost. The RSF Kobol is one of the very best vintage monophonic synths ever designed with its distinctive powerful and precise sound and one of the sexiest User Interface ever designed. Plus it has 16 memory slots and the ability to sequence these slots making it one of the most powerful sequencers of its time. You can trigger it from any 5V clock. More information can be found here : https://www.vintagesynth.com/rsf/kobol-expander and here : http://rsf-synth-official.com/cadre.html"

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Four voice RSF polyphonic Kobol rack

video upload by yusynthman

"This is a video of Olivier Grall testing it's very rare polyphonic (4 voices) kobol rack (RSF) he purchased in the beginning of the eighties. Les than 10 of these were built by Ruben Fernandes. I had the chance to overhaul it and this is a video of the testing."

RSF Kobol »French Minimoog« rare vintage synthesizer

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via this listing

"Only around 200 units were built in the '70s and maybe only 50 are left - probably less.

The unit is all original with big knobs (hell yes!) and a sequencer that steps through presets, not notes!"

RSF Kobol Expander SN 13379

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via this listing

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RSF Kobol Expander Modular Synth System 1978

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via this listing

Pics of the inside below.

"Up for sale is an extremely nice clone of the RSF kobol expander 1 and an original RSF kobol expander 2. The clone is made with original SSM chips for the filter and envelopes and original ua726 for the oscillators. I was able to tune it up so that the knobs match my original expander exactly and it now sounds 100 percent identical. It also runs off of 18 volts and is even slimmer than the original. This expander alone would make a great travel synth.

I had plans to make new faceplates and build a travel case for these guys but I have too many projects going on right now. It’s a great oppurtunity to get these two for a bit cheaper than what they have gone for in the past. The expander 1 is simply the best bass synth ever. Super snappy and great for leads as well. The behringer and moslab clone both missed the mark in my opinion. There’s something very special about the wave shaping of the original and I was amazed that I got the clone to imitate this behavior exactly. The ringmod on the expander 2 is really interesting/ dirty pairs well with the wave shaping. Be careful with purchasing kobols as there are clones out there. Always ask for inside shots of the units. I A dead give away is usually the switches.

The expander 1 is in perfect condition. The expander 2 has a slight dent on the corner that was not noricable when racked and the faceplate has a few scrapes. Both are in excellent working order with no scratchy pots or anything."

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RSF Kobol Expander *Vintage *Serviced

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via this listing

"For sale is a very rare RSF Kobol Expander. Made in limited quantities in the late 1970’s. Despite its age, it has been serviced and is fully functional.

However, there are two caveats, one knob is missing, and sometimes the tuning isn’t so stable. It is analog synth, modeled after a mini moog after all."

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RSF Kobol

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via this listing

"4 very rare RSF KOBOL elements to sold (in one lot).

Everything is in perfect condition and has just been completely overhauled and cleaned by Jean-Loup Dierstein in Paris (invoice supplied).

There are 4 elements, all placed in a custom rack:

1 expander + 1 patch bay + Expander II + Programmer.

Everything works perfectly. It's a very rare piece and I don't want to sell it element by element."

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♫ Jamming With a Bunch of Synths ♫ ----- (138)

video upload by Bata

Wait for 1:24

5U Modular (Synthesizers.com, STG Soundlabs, Synthetic Sound Labs)
Akai MPC X
Behringer 2600 (ARP 2600 clone)
Behringer Kobol Expander (RSF Kobol Expander clone)
Behringer Model D (Minimoog 2016 reissue clone)
Behringer Pro-1 (Sequential Circuits Pro One clone)
Behringer RD-6 (Roland TR-606 clone)
Behringer TD-3-MO (Devilfish modded Roland TB-303 clone)
Casio CSM-1
Clavia Nord Wave
cre8audio East Beast
cre8audio West Pest
Erica Synths Syntrx II
Elta PF-3 Stereo Multimode Filter (Formanta Polivoks chips)
Eurorack Modular (2HP, Behringer, Expert Sleepers, Intellijel)
Korg Delta
Korg Mono/Poly (x2)
Korg SQ-1 (analog style sequencer)
Ladyada Xoxbox (Roland TB-303 clone)
Landscape Noon
Make Noise 0-CTRL (analog sequencer/touch keyboard)
Moog Source
Roland CM-300 Sound Canvas
Roland P-330 Piano Module
Simmons SDS-V
Studio Electronics Boomstar 5089 mk1
Yamaha CS-15

RSF Kobol Expander II

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via this auction

"Super rare RSF Kobol Expander 2.
Approx Only +-200 units built.
Not serviced, but fully functional, in good condition (just a few small aesthetic scraches).
Powersuply is 220V.(Europe)

If you own a Kobol expander 1 The Expander2 gives you a full ADSR, S&H, an extra LFO, Lag & noise, ring mod, etc.


It can also be combined with other machines.

Comes with power chord

-- -- -- -- -- -- -- -- --

The rsf's are powerfull synthesizers, built in France in the end of 70's begining 80's, with a HUGE and beautiful, super warm and wide sound.

The Kobol can be coupled with the Kobol Expander 2 and the programmer ( very very rare amazing sequencer ).

These beautiful machines are rare because they were produced by hand by two brothers for only a couple of years."

RSF Programmer (for Kobol Expander)

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via this auction

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RSF Kobol Expander 2 SN 13235

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via this auction

"Super rare RSF Kobol Expander 2.
Only +-200 units built.
Fully functional,in good condition.
Powersuply is 220V.(Europe)

If you own a Kobol expander 1 The Expander2 gives you a full ADSR, S&H, an extra LFO, Lag & noise etc."

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UVI Introduces Synth Anthology 4

video uploads by UVI

Note the above is a playlist featuring 4 videos. You can use the player controls to skip through them or just watch them all in order.

Details on Synth Anthology 4 follow:

The authentic sound of 200 synthesizers, from vintage to modern
4,000+ presets and layers deliver incredible sound with hardware soul
Feature-packed dual-layer engine with fx, arpeggiator and more

Synth Anthology 4 - A Synthesizer Tour de Force
https://www.uvi.net/synth-anthology-4

Rebuilt from the ground-up, Synth Anthology 4 now features the authentic hardware sound of 200 vintage and modern synthesizers, a fully redesigned engine with powerful features, fx, arpeggiator, smart sound suggestion engine, native MPE support, and more.
A dreamlike collection!

Also included in SonicPass ➡️ https://www.uvi.net/sonicpass

Video credits: Anthony Hak
Music Credits: Théo & Thomas

"The Best Keeps Getting Better

What's new in version 4?

Almost everything!
We've rebuilt the engine from the ground-up, added more synths, more presets, more effects, more filters, more modulation, a dedicated browser, a second fully-customizable layer for creating hybrid and blended timbres, an all-new smart suggestion engine that helps you quickly find similar sounds, a more powerful arpeggiator/phraser, bus effects, native MPE support, and more!

Real Hardware Sounds There is something unmistakable about the sound of a real hardware synth, from subtle differences between voice circuits and drift to the varied way filters bite into the sound; there's a distinct character and energy. Synth Anthology 4 delivers the authentic and uncompromising hardware sound with all the conveniences of a modern software instrument.

Every piece of hardware represents a unique creative vision, sonic character, innovations, and strengths. Whatever you're looking for, from analog to digital, vintage classic to future classic, you will find it here. Synth Anthology 4 delivers an incredible collection of hardware, every major manufacturer, every type of synthesis, every era, 200 synthesizers in all.

You won't find a more complete collection anywhere else."

The list:

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MOS-LAB Kobol Expander III RSF SN 3561

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via this auction

"A stunning recreation of the RFS Kobol Expander synth, made by the genius company MOS-LAB. Everyone who used this along the original RSF Kobol side by side says they sound absolutely spot on. There's on Kobol Expander being sold at 10K on Reverb right now... This one is even more rare, as only about 30 were ever made.

Super snappy, big bass and morphable waveforms. Since the waveform morphing is made with a discrete waveshaper, the volume isn't consistent during the sweep. The original responds like this, too, but it got me by surprise so I'm mentioning it, so that you don't have to do your research ;-) The filter is super smooth and liquidy.

The synth comes in a Moon Modular rack, with a standard PSU."

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Mos-Lab rsf Kobol Expander III Synthesizer

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

via this auction

"Very rare Mos-lab rsf expander III 5u modular synthesizer.

Like new and works perfectly. Also included rack 19'' box with power supply."

Colossus Quartz AS250-Seq Expander w/ a Vintage RSF Kobol Expander I Synthesizer

video upload by Analogue Solutions

"Here's an AS250-Seq expander driving a vintage synth (RSF Kobol Expander I). The AS250-Seq fits seamlessly into your analogue synth studio and works well with most vintage and current analogue synthesizers that accept CV control.

Details:
https://www.analoguesolutions.com/col...

What is Colossus Quartz?

Tom Carpenter is excited to introduce Colossus Quartz, an exciting new range of add-on synth expanders, part of the Colossus range.

Colossus Quartz is the Colossus Slim split into quarters. This allows you to build the whole system one quarter at a time, spreading the cost, or, to just have single sections to use as expanders alongside your existing modular synthesizers.

Several benefits:

It enables you to buy one quarter at a time, so you can spread the cost eventually building up a complete Colossus System.

They can be used as expanders for Colossus.

And they can be used as expanders and used with other modular set-ups (Eurorack, 5U, etc).

Each quarter has a specific range of general features:

AS250-VCO This has a bank of 12 vernier VCOs, plus 2 Noise Generators, Random Voltage, Sample and Hold, Matrix Panel.

AS250-Mod This features 4 VCAs, 4 Envelopes, 2 LFOs, LCD Dual Channel Oscilloscope (can be upgraded to single channel CRT), Touch Keyboard / Sequencer.

AS250-VCF This has 8 Filters (4x SEM type, 4x Moog type), 8 VCAs, 2 real Spring Reverbs, 2 Ring Mods, 2 Slew Generators, Matrix Panel.

AS250-Seq This features a 64-step analogue sequencer, 4 Moving Coil Meters, Stereo Mixer, 2 Joysticks, 2 Multiples, 2 Sub-mixers.

All systems feature a full set of 3.5mm jack sockets for patching.

All the voice and modulation circuits are of course 100% analogue. We purposely steered away from digital, it doesn’t even have MIDI or USB (there are plenty of MIDI converter boxes out there should you need that facility). There are of course digital elements to the sequencer control - that is unavoidable - even classic analogue sequencers like the ARP sequencer used digital logic chips. In fact the EMS Synthi 100 features a digital sequencer.

Colossus is large scale, featuring large knobs that control metal shaft potentiometers. VCOs have multi-turn verniers. The two enormous pin matrix panels dominate the panels - these are incredibly expensive Swiss-made broadcast-quality signal routers.

There are two spring reverbs, touch keyboard, step sequencer, moving coil meters, joysticks and so much more. An immense expanse of jack sockets for additional patching within or without the system.

There are no gimmicks - this is pure synthesiser. A huge sound enclosed in a solid metal case wrapped in wood. No expense has been spared to bring this incredible machine to life.

Synthesisers like this only come around once in a decade, or possibly a generation."