Wersimatic II + Roland SP 404

YouTube via cube15 | October 05, 2010

"Low quality video.
Vintage analog drum machine/composer.
Modern sampler."

Synth Rorschach #41 Christmas lights..... or is it a rhythm sequencer

Published on Dec 21, 2015 organfairy

Literally turning a synth rorschach into a working synth device. Be sure to see the Rorschach and Holidays channels below for more posts in each category!

"I found this old telephone exchange device in my garage. I remember buying it quite a while ago. But for some reason I have not used it for something untill now.

I converted it to a kind of drum sequencer somewhat inspired by the Eko Computerhythm from the 1970s and it can control the little drum synthesizer I build some years ago.

The music is "No milk today" that was a major hit by Herman's Hermits in 1966. I play it on my Wersi Prisma DX-5 while the rhythm comes from another distinctive drum machine namely the Wersimatic II."

WERSI CX-2 (1984)

Note: Auction links are affiliate links for which the site may be compensated.
video by Synthesizer Home

"Ultra rare analog accompaniment unit with digital 8-bit drum machine mande in Germany."

via this auction

"Extremely rare Wersi Wersimatic CX2. The CX2 is a combination of a digital drumcomputer and preset synthesizer/organ. The drumcomputer section consists of 54 preset rhytms, but it is also possible to compose your own rhytms by using its composer (static/real time composing) and the 14 different drum sounds available. It also has accent.

The accompaniment section has a bass (guitar, synth, tuba), chord (e-piano, guitar, wah guitar, strings, organ), and arpeggio section (brass, clarinet, banjo, bells, strings, single notes). When the drumsection plays the accompaniment section can be triggered by pressing keys. It automatically follows the rhythms. However, you can also make your own BASS solo, chords, and arpeggio patterns !!

This is a great instrument for modding. SSM2044 chips are installed on two of the cards, and a filter/resonance function can be easily added. Other possible modifications my be separate outs and volume pots for drum sounds and accompaniment, clock synq, etc. I prefered to leave it in original condition and let the next owner do this if preferred.

The Wersi CX2 comes as seen on the pictures with technical documents in German.

Condition: Great condition with light traces of use (see the original pics and video)."

Cool overhead light on top for playing in the dark. I was wondering how many synths had something similar and the Moog Voyager came to mind. It has a gooseneck lamp you can connect on top.

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1982 Vintage WERSI wersimatic CX1 analog drum machine rhythm synthesizer

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

via this auction

"Wersi WERSI MATIC CX1 is a programmable rhythm machine / accompaniment from Germany.

The Wersi CX-1 is a Preset Rhythm Accompaniment and Drum Computer. It offers 64 presets with analog based sounds for drums and rhythm accompaniment. It has 3 sounds for bass, 5 for rhythms and 5 for accompaniment sequences. There is no sound editing of the internal synthesizer but the rhythm and drum sequences are user programmable and can be stored internally or via tape interface.

The CX1 has preset rhythms and is also programmable. It has analog sound generation for the drums and the accompaniment. Tape interface for storing own patterns onto tape – like on analog synths as Korg Polysix or Roland Juno-60. The drums sound a bit like the Korg KR-55.

The CX1 was also included in Wersi organs of the day.

Original receipt from 1983 $2,124

Original User Guide

Original Technical Data / Assembly Manual"

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Wersimatic WM24, WM24B + Pedal

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via this auction

"Fantastic rare vintage gem. Unfortunately need repair.

I bought it in full working condition but it's broke during shipping.

The power supply of the drum machine broke. (see photos, I have the broke part).
I took it to service (only the drum machine) but they didn't do really good job.
The drum machine is now working but two rhythm (foxtrott and shuffle) doesn't work.
When pushing "orgel stuerung" it's muting everything. Need restart.
Please watch video, it's about the actual item.

The WM24b organ doesn't work. That wasn't in service. I don't know what the problem is with it. Maybe just the power (it's get the power from the drum machine). Therefore can't test the pedal..

I belive all is repairable. But I'm tired to search the right tech guy here.

Hope it go into good hands who can bring it back to life!"

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WERSI - "Funky" Wersimatic CX1 ...(1982)

YouTube Uploaded by premiumexpert on Aug 6, 2011

"Soundcheck : Analog Drums + Synthe Bass + Wah Guitar + Clarinets
(some reverb added)"

Wersi Wersimatic CX1 / CX2

video upload by ohm_studi_ohm

"Demo of a Wersi CX1 I just serviced. Showcasing the general functionality of the instrument by fiddling with some presets I made.

This unit is actually more a CX2 since it was upgraded at some point to a CX2. This was a possibility given by Wersi when they released the CX2 not too long after the CX1. Basically it replaced the full analog drum sounds with 12 bit PCM drum samples. Otherwise the CX1 and CX2 shared the same analog arranger and programming unit. There are still 4 analog drum synthesized sounds in the CX (maracas, claves, tambourine and "synthdrum", the latter being only manually triggered).

The CXs also have 3 SSM2044 filters for the 3 analog parts (bass, chord and arpeggio) and it features a great Wersivoice BBD triple chorus card to give that ensemble sound to the string presets sounds (check my videos about these units if you dont know how they sound).

Both drum and arranger parts are programmable and you can store your own 16 presets, in top of the 48 builtin presets. Instant 80s and italo disco sound with this unit. Very close in philosphy and sound to the mlighty Bohm Digital Drums, with the latter being a much more advanced unit though."

Lalaland Synth Shop Reykjavik Iceland

Published on Feb 7, 2018 Synth Expert

"Icelandic electronic music producer Arnar Adalsteinsson gives us a tour of the rare gear in his synth repair and mod shop, Lalaland, located in the Reykjavik harbor."

Featured: Korg Delta, Jen SX1000, Jen SX2000, Sequential Circuits Pro-One with custom Prophet style knobs, Mini Meanie TTSH Arp 2600 clone, Yamaha CS30, Moog Memorymoog, Arp Axxe, Clef B30 Micro Synth, Roland Jupiter-6, KORG PS-3100, Wurlitzer, Wersi Matic CX2, Korg Mono/Poly with Tubbetec MIDI Kit, EKO Pony, Korg Trident, Roland Jupiter-4, Yamaha SK10, Filther DIY filter by Adalsteinsson,

Interesting look at the inside of the Wersimatic CX2. Lots of samples on it.

Wersi CX1 Wersimatic

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via this auction

Service:
Recap of PSU
Voltage regulators (7815/7915) are replaced by new ones.
The keyboard contacts were serviced.
Push switches were serviced with IPA.
Several suspicious looking solder joints were reflown.
A better power cable was installed.
220V/50 Hz.

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Wersimatic WM 24b

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via this auction

You can find a demo of one here.

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rare birds: Welson Ritmo / analog drum and accompaniment unit

video upload by ohm_studi_ohm

Also see this one from 2022 with a smaller keyboard controller.

"The Welson Ritmo was a accompaniment unit intended as an add-on to some of Welson's organ line. It consists of a rhythm unit, a bass section, a chord section and an arpeggiato section. All sounds are of course fully analog. It is very similar in features and sound to the Elka Wilgamat, Böhm Böhmat and Wersi Wersimatic CX1. They are actually built around the same chipset family (SGS M2xx), but the Ritmo cannot be programmed.

It was never intended as a standalone unit so I built a custom keyboard to make it so.

Unit is very easy and straightforward to use with some nice features: for instance you can play it in "free chord" or 'one finger chord'. In the first mode you need to make a 3 notes chord to trigger the arp sound. With one or 2 notes you only trigger the bass and chord sounds, this make for some nice performance variations. The bass section can be set to 'walking bass', and in this mode you also need 3 notes to trigger the melody.

In 'one finger chord' you play a major chord with one key. There is a pedal input on the back to make the chords minors. I also added a switch on the keyboard to alternate between major and minor chords when playing in the "one finger chord" mode.

Other nice features are "keystart" (obvious functionnality) and 'memory' which holds the played notes (and rhythm). And like almost all the preset rhythm units you can combine different rhythms together."

Pics via SALES.OHMSTUDIOHM@GMX.FR

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WERSI CX1 WERSIMATIC Analog Groove Box 1982 | HD DEMO

Published on Sep 6, 2015 AnalogAudio1

"(c) 2015 by AnalogAudio1

In the beginning of the video I added a little reverb from a Dynacord DRP20 on the drums, all other effects came from the CX1 itself.

Wersi WERSI MATIC CX1 is a programmable rhythm machine / accompaniment from Germany.

The CX1 has preset rhythms and is also programmable. It has analog sound generation for the drums and the accompaniment. Tape interface for storing own patterns onto tape - like on analog synths as Korg Polysix or Roland Juno-60. The drums sound a bit like the Korg KR-55.

The CX1 was also included in Wersi organs of the day."

Elka Wilgamat analog drum machine and accompaniment unit SN 1227

Note: Auction links are affiliate links for which the site may be compensated.
video upload by ohm_studi_ohm

via this auction

Note the listing is for only 1 unit.

"The Elka Wilgamat was an accompaniment unit intended as an add-on to some of Elka's organ line and also as a standalone unit with dedicated 2 octave keyboard. It consists of a rhythm unit, a bass section and a chord section. All sounds are of course fully analog. It is very similar in features and sound to theGodwin Drummaker, Wersi Wersimatic WM24, Elgam Carousel or Böhm Böhmat."

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Wersi CX-1 based 19" midi drum expander

Published on Mar 1, 2020 Stereoping

"Test- and demosong for a little DIY project - an analogue rack #midi drum expander based on some soundcards of the #Wersi #Wersimatic #CX-1. Together the 3 PCBs supply 14 different sounds, some quite interesting. One is called "Synthedrum", an oscillator with 3080 VCA allowing several interesting mods, they are demoed at 1:20. The video also shows some pictures of the building process. All drums in the song - except the tabla - coming from this unit. Other gear: #Waldorf #Pulse, Deep Bass 9, Roland #Integra7, #Boehm Dynamic 12/24 and a beautiful Flute from the #Akai #S900 through a Roland #DEP-5."

WERSI WERSIMATIC WM24 & WM24b (1972) & BÖHM BÖHMAT SOLIST S (Keyboard Version)

video upload by Synthesizer Home

Update:

BÖHM BÖHMAT SOLIST S (Keyboard Version)

video upload by Synthesizer Home

Wersi Wersimatic II 1973 - Analog Drum / Bass / Chord / Arpeggiator Machine

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

via this auction

Demo video posted here.

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Wersimatic WM24 and WM24B demo and tech details

YouTube Uploaded by sounddoctorin on Jul 13, 2011

"Bob Weigel Of http://www.sounddoctorin.com demonstrates and explains a few tech details on the rare Wersi rhythm combo pair (see near video where I talk about finding the 6 pin din cable in a dumpster where I was felt led to go reach in and grabbed out a bag with a new cable. lol."

WERSI - Wersimatic II ...(1974)

YouTube Uploaded by bernd16244 on Nov 28, 2010
Update: Re-Published on Aug 8, 2011 premiumexpert

"Wersi CX 2 Demo"

WERSI CX2 WERSIMATIC Analog Groove Box 1985 | HD DEMO

video by AnalogAudio1

"(c) 2021 by AnalogAudio1

In the beginning of the video I added a little reverb from a Lexicon MPX500 on the drums, all other sounds came directly dry from the CX2.

Wersi WERSI MATIC CX2 is a programmable rhythm machine / accompaniment from Germany.

The CX2 has preset rhythms and is also programmable. The drums are digital 8-bit samples of real drums. The CX2 It's micro processor controlled, but it has analog sound generation for the accompaniment. A kind of "solina string ensemble" is also on board. Tape interface for storing own patterns onto tape - like on analog synths as Korg Polysix or Roland Juno-60. The Wersi CX2 is the successor of the CX1, which is essentially the same, except the drums. The earlier CX1 has fully analog drum sounds, whereas the CX2 uses digital samples.

The CX2 was also included in Wersi organs of the day. It's similar to the 'Böhm Digital Drums'."

Additonal WERSI CX2 posts

Wersi Wersimatic WM7 Drum Machine

Published on Dec 25, 2018 ChapelOne Music

"A quick run-through since there don't seem to be any video of this thing.
Very rare, great sounding, German, analog drum machine from the late 70's.

No effects or compression added."