as of July 6th, 2015
Now available: new Modules A-110-4, A-139-2, A-160-2, A-160-5

Thru Zero VCO
Clock Divider II
Clock Multiplier/
Ratcheting Controller
Spring Colors

The rotary knobs used in the A-100 are now available with different colors. The modules are still delivered with grey knobs. Because of logistic reasons it's not possible to deliver modules with different colored knobs. But the customer is able to order the knobs separately and replace the grey knobs by the new ones as the knobs are simply plugged on the potentiometer shafts. The colored knobs can be used also in other products like MAQ16/3, Dark Energy or Dark Time. You find the new knobs in the price list in the spare parts section.

Musikmesse Frankfurt
On the occasion of the Frankfurt Musikmesse we showed these new products:



already available
Basic VCO

already available
Thru Zero VCO
planned for May 2015
VCLFO with Delay
already available
already available
planned for May 2015
Trigger Sequencer
planned for summer 2015
Clock Divider II
planned for May 2015
Clock Multiplier/
Ratcheting Controller
planned for May 2015
USB/Midi to CV/Gate
planned for summer 2015
New A-100-System: Starter System 1
A-100 Starter System (A-100BSS1)
Price increase April 2015

Because of the strong US$ compared to the Euro we have to increase our prices in April 2015 (about 5-10% according to the product). The reason is that many electronic parts are charged in US$ (e.g. potentiometers, switches, rotary knobs, integrated circuits, sockets, cables) and we are no longer able to compensate the exchange loss.

Now available: Breakout Module for A-127

The breakout module A-127BOM for the triple filter module A-127 is now available. It features separate access to each of the three filters of the A-127, separate outputs lowpass, highpass, bandpass and notch for each filter and a separate audio input for each filter. The price is Euro 70.00.

Now available: USB/Midi-to-CV/Gate/Sync Interface A-190-4

The new USB/Midi-to-CV/Gate/Sync interface A-190-4 is now available. It is the successor of the former interface A-190-1
The price is Euro 175.00.
For more detailed information the user's guide is available: A190_4_man.pdf

Eurorack synth module based on our DIY Synth

XAOC Karl Marx Stadt

Now available: A-100 Low Cost Case A-100LC3
The 1U version of the low cost cases A-100LC6/LC9 is now available. The A-100LC3 is very similar to the A-100LC6 but offers only one row with 84 HP for installation of modules. A-100LC3 is equipped with one power supply (1200mA) and one bus board. Because of the limited space the power suppy of the DIY-Kit #1 with an external transformer is used (same as for the DIY-Kit #1). At the left side of the case the connector for the external transformer is located. The external transformer is not shown in the above pictures. The outside dimensions of the case are in mm about  445 (width) x 160 (depth) x 150 (height). The price of the A-100LC3 will be about Euro 180 (including external power supply for 230 or 115V AC, without modules).
Now available: A-100 Suitcase Base A-100PB
The "small brother" of the monster base A-100PMB is now available. The new case A-100PB is very similar to the A-100PMB but has only half the width (2 x 84 HP for installation of modules). The suitcase versions A-100P6 or A-100P9 can be positioned on top of the A-100PB because the width of the A-100PB is a bit more than the width of A-100P6/P9 and the footprint of the A-100PB is adapted to the depth of A-100P6/P9. A-100PB is equipped with one power supply (1200mA) and two bus boards. The bus boards are located in the rear area (even those for the modules that are mounted in the front row). This was necessary to take advantage of the full height of the front area for installation of A-100 modules. The max. depth for modules in the front row is ~70 mm. The outside dimensions in mm are about  510 (width) x 420 (depth) x 210 (height).  The price of the A-100PB will be about Euro 550 (without modules).
Now available: A-190-8

Module A-190-8 is a Midi/USB to Sync interface. These are the most important features of this version of the module:

  • Midi input (recognizes only Midi realtime messages clock, start, stop and continue)
  • USB input for Midi via USB
  • Clock outputs:
    • 96: outputs the Midi clock 1:1 (96 pulses per measure/ppm or 24 pulses per quarter note/ppq)
    • 32: outputs the Midi clock divided by 3 (32 pulses per measure/ppm or 8 pulses per quarter note/ppq)
    • 16: outputs the Midi clock divided by 6 (16 pulses per measure/ppm or 4 pulses per quarter note/ppq)
    • 8: outputs the Midi clock divided by 12 (8 pulses per measure/ppm or 2 pulses per quarter note/ppq)
    • 1: outputs a pulse at the start of each measure
  • Other outputs:
    • Start: outputs a pulse at each Midi Start or Continue message or generates a gate signal that remains in the high state until a Midi Stop message occurs (selectable via jumper)
    • Stop: outputs a pulse at each Midi Stop message
    • Reset: outputs a pulse at each Midi Start message that follows a Midi Stop message
    • Wait control input, can be selected by means of a jumper between Gate function or Switch function: in Gate mode the positive edge of a gate signal is used to init the Wait state, in Switch mode an external switch that connects to GND is used to init the Wait state (equivalent to Switch-Trigger)
  • Wait button / Wait control input: Whenever the Wait button is operated or a positive voltage is applied to the Wait input the module waits for the next measure start until the clock signals are generated. 
  • LED displays for clock, "1" and start (display of Start depends upon the chosen Start mode, see above)
  • output voltages can be selected between +5V and +12V by means of an internal jumper (for DIN Sync applications +5V has to be used !) 
  • firmware updates via USB (provided that there will be updates available)
Now available: revised version of A-135-1

As of now the revised version of the A-135-1 is shipped. Compared to the previous version of the A-135-1 the inputs and outputs of the new version are normalled:

  • All signal inputs are normalled, i.e. signal input #1 is normalled to signal input #2 unless a plug is inserted into signal input socket #2, same is valid for the signal inputs 2 > 3 and 3 > 4, each normalling (1>2, 2>3, 3>4) can be interrupted by removing a jumper 
  • All CV inputs are normalled, i.e. CV input #1 is normalled to CV input #2 unless a plug is inserted into CVl input socket #2, same is valid for the CV inputs 2 > 3 and 3 > 4, each normalling (1>2, 2>3, 3>4) can be interrupted by removing a jumper 
  • the mode of the sum output can be chosen between "All" and "Selection". In "All" mode all four VCAs are mixed together. In "Selection" mode a VCA is removed from the sum signal when a plug is inserted into the corresponding single output.
Now available: A-141-2

A-141-2 is a voltage controlled ADSR type envelope generator/LFO with some remarkable features:

  • manual controls and control voltage inputs with attenuators for all parameters (A), Decay (D), Sustain (S) und Release (R)
  • common control voltage input for the three time parameters A, D and R with selectable direction, i.e. it can be chosen if an increasing control voltage increases the A, D and R time or if it lowers the times (like a VCLFO or VCO)
  • three-position time range switch 10:1:100 with the approximate time ranges 50us ... 6 s (position "x1"), 500us ... 60s (position "x10"), 5ms ... 10 min (position "x100")
  • 3 envelope outputs: normal, inverted and variable
  • control voltage input for the envelope level at the variable output (by means of a jumper one can select between positive envelope of polarizer function with positive/zero/inverted envelope)
  • Retrigger input
  • End-of-Attack and End-of-Release outputs
  • normalized CV inputs A - D - R (by means of switching contacts of the sockets) 
  • it's also possible to change the slope of each envelope segment continuously from exponential via linear to logarithmic
  • LFO mode
  • Gate input can be connected to the A-100 bus
Interview with Dieter Doepfer

The online magazine Great Synthesizers has published an interview with Dieter Doepfer:

and report about the A-100 workshop in Munich:

Now available 

These new A-100 modules are now available:

A-171-2 : Voltage Controlled Slew Processor/Generator

price: Euro 120.00


A-192-2: Dual CV/Gate to Midi/USB-Interface

price: Euro 130.00

A-132-1: dual linear VCA with high-end VCA circuit (SSM2164)

price: Euro 60.00


A-180-2: 2x4 fold multiple with 2 HP

price: Euro 35.00

A-132-1: dual linear VCA with high-end VCA circuit (SSM2164)

price: Euro 60.00

A-130: linear VCA with high-end VCA circuit (SSM2164)

price: Euro 65.00

A-131: exponential VCA with high-end VCA circuit

price: Euro 70.00

New Music made with A-100
drøn HD188753

Ten years after their last release drøn is back with the electronic ambient album HD188753. A big part of this album was created with the A100 Modular System. It is available on Bandcamp as a free download and as a limited edition. Compact disc for all the collectors out there

Interconnected / Zealosphere - 'Mechanic Environments' (DR002)

Ambient / Experimental scapes made with modulars, field recordings, vintage tape echoes and string machines...
Side A is music by Interconnected (Bakis Sirros & Ingo Zobel) , Side B is music by Zealosphere.
Out Now on Dohkonul Records:
You can listen to the whole album in the website of the label.
For the gearheads, machines used: Doepfer/ Eurorack modulars, Frac Blacet/ Metalbox modulars, Serge modular, Korg SE-500,
Roland RE-201, Korg PE-2000 ensemble, Field recordings, Ableton Live, Reaktor, etc...)
Split colored Vinyl LP, ltd edition 200 copies.

Discontinuation of A-100 Modules with blue LEDs
The production of the special version of the A-100 modules with blue LEDs will be discontinued. While stocks last A-100 modules with blue LEDs are available without additional charges. Please ask our sales office ( if the module in question is still available with blue LEDs.
A-100 Tutorials
Video tutorials by Raul Pena:

Doepfer A101-2 LPG Modes Intro: 
Doepfer A101-2 Low Pass Gate-VCA Mode: 
Doepfer A101-2 Low Pass Gate-Combined Mode: 

A110 Features and Functions: 
A110 VCO/A145 LFO Frequency Modulation: 
A110 VCO/ A145 LFO-More Frequency Modulation: 
A110 Waveforms and Pulsewidth demonstration: 
A110 VCO /A145 LFO-Pulse Width Modulation: 
A110 VCO /A145 LFO- More Pulse Width Modulation: 

A110 filtering with A101-2 and A120 intro: 
A110 filtering with A101-2 LPG: 
A110 More filtering with A101-2 LPG: 

A-114 Ring Modulation of Basic Waveforms: 
A-114 More Ring Modulation: 
A-114 Further Modulations: 

A118 Filtering with A120 VCF Low Pass Filter Part One: 
A118 Filtering with A120 VCF Low Pass Filter Part Two:

A-127 Introduction: 
A-127 Modulation: 
A-127 More Modulation:  
A-127 Audio Rate Modulation: 

A-131 VCA Intro: 
A-131 Processing CV with A-131 EXP VCA Part One: 
A-131 Processing CV with A-131 EXP VCA Part Two: 
A-131 Amplitude Modulation with A-131 EXP VCA: 

A140 ADSR Envelope Generator Part One-Introduction: 
A140 ADSR Envelope Generator Part Two: 
A140 ADSR Envelope Generator Part Three-VCO Patch: 
A140 ADSR Envelope Generator Part Four- White Noise Patch:

A-148 Sample and Hold: 
A-148 More Sample and Hold: 
A-148 Track and Hold: 
A-148 More Track and Hold: 
A-148 Track and Hold Vs. Sample and Hold: 
A-148 Sample Rate Reduction using T/H and S/H: 
A-148 Using other Waveforms in T/H and S/H: 

A-149-1 Quantized Random Voltages 
A-149-1 Stored Random Voltages 
A-149-1 Modulation of Quantized and Stored Random Voltages 

A-156 Basics: 
A-156 Modes of Operation: 
A-156 Modes of Operation Part Two: 
A-156 More CV Sources, Transposing, and triggers: 
A-156 More CV Sources, Transposing, and triggers Part Two: 

A-188-x BBD Basics: 
A-188-1 part 1: 
A-188-1 part 2: 
A-188-1 part 3:

A189-1 VControlled Bit Modifier Basics: 
A189-1 VC Bit Modifier-Bit Crushing: 
A189-1 VC Bit Modifier Demo-Sample Rate: 
A189-1 VC Bit Modifier Demo-Bit Crushing: 
A189-1 VC Bit Modifier Demo-Sample Rate: 
A189-1 VC Bit Modifier Processing CV Part 1:A189-1 VC Bit Modifier: 
A189-1 VC Bit Modifier Processing CV Part 1:A189-1 VC Bit Modifier:

Amazona workshop Dark Energy with A-100 miniature case (part 3)
The workshop explains (in German language) how to expand the Dark Energy by means of an A-100 miniature case with some A-100 modules. It includes also several patch and sound examples :

Part 1: 
Part 2: 
Part 3:  

Richard van der Meer has translated the workshops into English language and added a blank sheet too (thank's a lot Richard):

Doepfer Dark Energy_Amazon.de_Workshop-English.pdf 
Blank Patch sheet Dual VCO with DE_A100 Minicase.pdf

Workshop Part 1_Patch sheet Dual VCO with DE_A100 Minicase.pdf

Nice video with Dark Time and Dark Energy 
French user manuals for Dark Energy and Dark Time
Many thanks to Nathalie & Pascal Fournet who translated the user manuals of Dark Energy and Dark Time into French:

Dark Energy:

Dark Time:

A-100 Convergence
The website contains music that was made mainly with A-100 Analog Modular System.
Sample Library made with A-100
Surround SFX have released Transistor Rhythm, a premium 24/96 Sample- & Pattern-Library for the NI Maschine. The A-100 system was used for synthesizing and/or processing many of the included 800 drum- and one-shot-samples.Check it out at

Application examples by Synth Project for USB64 and MKE

Youtube-Video hierzu

Videos with A-100 New A-100 video by Christian Hatvani that shows not only noises or grooves but the basic sound of the A-100. Doepfer goes minimalistic
Excellent music and live videos by MINE and Daidenzin (Osaka, Japan) using the A-100
Daren Ager: "Using the small Doepfer system as a kind of 606+303 combo, not a musical statement, just me having some fun. All the sounds and sequencing done entirely on the system shown."
Gusgus with A-100 suitcase live on stage:
The Redundant Rocker at studio Helio.Gen:
vailable at
Dark Energy and A-100 Miniature Case in Concert

Two Dark Energy, one A-100 Minicase, a lot of fun:

A-178 Theremin videos by our customer Jamie O'Callaghan:

Improvisation with A-100 suitcase

Random improvisations with an A-100 suitcase by James Bragg: www.myspace. com/vjjamesbragg

A-100 Theremin

A nice video that shows the Japanese singer and thereminist Eri playing the A-100 with the Theremin modules A-178.


A-100 Minisystem

Tutorial video: A-100 Mini-System Patch/Sound examples

This video made by Luca Capozzi shows some patches and sound examples of the A-100 Mini System:

Tutorial video: Controlling the A-100 with a Wiimote Gamepad

An excellent video by our A-100 user Max that shows how to use a wiimote gamepad to control the A-100: com/watch? v=LHOS2zg- 0nI


Midi accordion with built-in Pocket Electronic

This cool video shows the usage of the Pocket Electronic in a midi accordion to control a joystick/wheel, a ribbon controller and additional buttons:

A-100 in Simian Mobile Disco Goes Gear (on Matrixsynth)

Matrixsynth / A-100 Modular System suitcase used in Simian Mobile Disco Goes Gear: http://matrixsynth. blogspot. com/2007/ 10/simian- mobile-disco- goes-gear.html

A-100 Modular Patchbay System Used By Surachai At Ramp Chicago

Gearwire / Doepfer A-100 Modular Patchbay System Used By Surachai At Ramp Chicago:

Amazona A-100 Report Series
Oscillators I Oscillators II Oscillators III Filters I Filters II Filters III Time 1 Time 2
SOUND ON SOUND Modular Synths Report
Overview of Modular Synths as of spring 2009 in the April 2009 issue of Sound on Sound

Editor's choice: A-100

Revised A-100 Planner

Stefan Breitenfeld has revised his excellent A-100 planner. Pay attention that the planner uses JavaScript and the width of your monitor should be at least 1280 pixels to have access to the module selection box:

  • totally new design
  • forum for members
  • Google Maps with manufacturers and dealers addresses
  • exchange rates are updated directly from the EZB
  • compatible to Internet Explorer
  • patch drawing engine (beta)

Please report possible faults or suggestions for improvement directly to the author:

Interview's Parallel Worlds

There is a new Parallel Worlds extensive interview on the Analogue Haven website including many studio and analogue modular synth photos:
Interview: Online interview with Parallel Worlds in Electronic Musician Magazine

The full interview with Parallel Words on the US Electronic Musician magazine is now online:


Older Reports and Videos

NAMM 2008:

Sonic State: http://www.sonicsta shownews. cfm?newsid= 6048



Test Doepfer-System A-100 in
Gearwire / Doepfer A-100 Modular Patchbay: The Land Of Analog Make-Believe
Musikmesse 2007:


NAMM 2006:

Sonic State NAMM video (demonstration of the A-100 BBD module and the touch sensor keyboard):

Onebluemonkey NAMM video (demonstration of the A-112 in wavetable mode, A-100 BBD module and the touch sensor keyboard):

A-100 Online reviews:
A-100 report in French magazine: Keyboards Recording / KR (France), issue February 2006 (février 2006, #205), pages 40-44
Sound example by Robert Sigmuntowski for the usage of the sequencer A-155 in combination with the sequential switch A-151 to switch the CV rows of the A-155 on-the-fly: A155_A151_demo.mp3