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Three 1 to 4 Buffered and Attenuverted Multiples & Voltage Source lange anna & anna´s langer arm / three 1 to 4 buffered and attenuverted multiples & voltage source + sattelites ⇣ LANGE ANNA might just be the lengthiest treat in the DIY Eurorack universe! It sprawls across a substantial 84 HP, essentially taking up the bulk of standard cases. The core idea is to effectively carry CV and audio signals throughout the width of a Eurorack case. The satellite modules, ANNAS LANGER ARM, offered in both 3U and 1U format, play a crucial role in further distributing signals across your case. key features 3x 1 to 4 Buffered Multiple Attenuverter per Channel Constant Voltages Normalized to Inputs LED Indication Optional Satellite Modules with Summed Output in 20HP 1U and 4HP 3U Wrong polarity protection Skiff friendly specs & downloads width: 84 HP / 20 HP / 4 HP depth: 28 mm power: 65 mA @ +12V / 50 mA @ -12V documents description / manual This buffered multiple has three channels that multiply each signal to four outputs. For each channel there is a bipolar attenuator to adjust the signal level and polarity. LEDs above and below each output indicate whether a positive or negative signal is present. When nothing is connected to an input, a constant voltage is normalized to the inputs. There is a switch to select the maximum voltage of +10V or +5V. By utilizing the attenuators, you have the capability to employ these voltages for the manipulation of various other module parameters. ANNA'S LANGER ARM was conceived for journeys to distant destinations. Its purpose is to transport signals to unexplored corners, places within your cabinet untouched by any other CV or audio signal. This module establishes a direct link with the LANGE ANNA and eliminates the need for a separate power connection. It offers an additional multiple output per channel and a cumulative output that combines signals from all three channels. The module can be positioned at a considerable distance from your LANGE ANNA unit, effectively spanning the entire width of your modular setup. LEDs positioned above and below each output serve to indicate the presence of positive or negative signals, simplifying the task of assigning an output to a corresponding LANGE ANNA input. Theoretically, you can add as many satellites to LANGE ANNA as you want, as each module has its own buffers. However, there may be some negative side effects when transmitting the signals over very long distances. videos Up

Effects inaki / dual delay / 10 HP ⇣ Iñaki is a Dual Delay, Stereo Delay, CV Pan, CV Crossfade, 2 Channel Mixer and a Mono to Stereo Converter in a single module. 1/3 key features Dual/Stereo PT2399 Delay CV Pan CV Crossfade CV Attenuator 2 Channel Mixer Mono to Stereo Converter Delay Time and Feedback Wrong Polarity Protection specs & downloads width: 10 HP depth: 44 mm power: 65 mA @ +12V / 55 mA @ -12V documentation videos description / manual Each of the two channels has a PT2399 Delay with Time and Feedback. There is also an individual EQ available. The volume of the channels is adjustable with the two VOL potentiometers. The output of each channel is supplied on the L and R output jacks. These can be used for stereo signals. You may use CV Pan to change the volume of each side. Turning the CV Attenuator you sets the amount of PAN applied to both channels. Additionally there is a MIX out, where both sides are available at a single output jack. Using the Pan knob or the CV IN you can pan between both sides. If there is only one audio source connected to IN L this signal is multiplied to the other channel in order to provide a crossfade functionality. prev Up next

Utilities & PSU mult / dual buffered multiple / 3 HP ⇣ Ever wish life had a "Buffered Multiple" module? One for when you need to duplicate yourself at the family reunion, and another for when you're avoiding the office coffee duty! Just plug into these magic modules, and voilà – instant you, in multiple places. Unfortunately, our modules are for signals, not people, but hey, we can all dream of a buffered clone army, right? 1/3 key features Buffered Mult iple 1x4 and 1x2 or 1x6 via Normalization 1x Inverted Buffered Output Easy to Build Wrong polarity protection specs & downloads width: 3 HP depth: 28 mm power: 12 mA @ +12V / 8 mA @ -12V documentation videos description / manual MULT is a dual 1x4 and 1x2 or a single 1x6 buffered mult iple. The first input is distributed to 4 buffered outputs. The last output is inverted.The second input is distributed to 2 buffered outputs.The first input is normalized to the second. This way you can also use MULT as a 1x6 buffered mult iple. Each input has an LED indication. prev Up next

Oscillator trommelmaschine / three-voice hybrid drum synthesizer / 18 HP ⇣ TROMMELMASCHINE is the German name for "drum machine", and it perfectly sums up the essence of such a machine: a versatile three-voice digital and analog drum module that can be used to create a range of kick drums and various percussion sounds. 1/3 key features 3 Voice Drum Generator Digital & Analog Drum Synth plus Noise Two Digital Drum Modes CV Inputs with Attenuators Internal Mixer Individual Outputs Wrong Polarity Protection Firmware based on MI Peaks: Released under cc-by-sa-3.0 License specs & downloads width: 18 HP depth: 28 mm power: 165 mA @ +12V / 72 mA @ -12V documentation videos description / manual This drum module features a DIGITAL DRUM VOICE (D) with PITCH and TONE control that has three modes (with latest firmware V2): KICK, SNARE and PERC. Press and hold the MODE switch for one second to switch between the KICK and PERC modes. When in KICK mode, press the button briefly to switch to SNARE mode. In KICK mode the sliders are MOD1 = DECAY, MOD2 = TRANSIENT, MOD3 = PITCH ENV and in PERC mode MOD1 = COLOR, MOD2 = DECAY and MOD3 = FM AMT. In SNARE mode the sliders are MOD1 = DECAY, MOD2 = SNAPPYNESS, MOD3 = TONE. PITCH and MOD can be changed manually or via CV with dedicated attenuators. If nothing is connected to the CV inputs, the MOD CV attenuators change the response curve of the MOD sliders. Turn them to the right to get a linear response and to the left to get a logarithmic response. This facilitates precise adjustment of the slider positions. The ANALOG DRUM (A) voice has DECAY, DRIVE and PENV (pitch envelope) sliders, plus PITCH and LENGTH (pitch envelope length) potentiometers. These can also be controlled via CV. The PITCH CV input tracks 1V/OCT and can be used to play notes. The EMPH input lets you emphasize the signal. This jack can be used as an input to control the internal VCA, e.g. to feed it with an ADSR. The third voice is a NOISE GENERATOR (N) with COLOR control and DECAY slider. The decay of the noise can also be controlled via CV. All voices have individual trigger inputs (D. TRIG is normalized to the other trigger inputs) and individual outputs and are also summed using an internal mixer at the MAIN output. The volume of each channel can be changed with the volume pots. Loudness LEDs indicate when a voice is close to clipping. TROMMELMASCHINE QUICK START GUIDE: TROMMELMASCHINE_QUICK_START .pdf Download PDF • 984KB prev Up next

Mixer & VCA matrico / 3x3 bipolar matrix mixer with sum out / 10 HP ⇣ There are many creative ways to use matrix mixers for CV and audio processing. MATRICO is a full-featured matrix mixer in a small footprint that provides instant access to this modular creativity. 1/3 key features 3x3 Matrix Mixer Bipolar or Unipolar Input LED Low HP Size Performance-Orientated Mixing Wrong Polarity Protection specs & downloads width: 10 HP depth: 30 mm power: 35 mA @ +12V / 25 mA @ -12V documentation videos description / manual MATRICO has three inputs I - III which can be routed to any of the three outputs A-C. For each connection between I-III and A-C there is a separate potentiometer which acts as an attenuator/attenuverter. For each output A-C you can decide whether the signals should be processed unipolar or bipolar. The LEDs indicate whether a positive or negative signal is present at the respective input. They only show input signals, as it is so much easier to identify a signal to be mixed with other signals. There is also a sum output with LEDs that provides a mix of all outputs. prev Up next

Modulation & Random influencer / multiple random cv generator / 14 HP ⇣ INFLUENCER offers a versatile collection of CV tools and creative unpredictability, divided into five distinctive sections, each serving a distinct purpose. With an array of modulation sources and an added touch of uncertainty, INFLUENCER stands as your comprehensive CV powerhouse. 1/3 key features 5x CV Generators Internal Clock & LFO CV Fall Envelope Sample & Hold/Track A/B Comparator Smooth Random CV Noise Out Input Normalisations specs & downloads width: 14 HP depth: 28 mm power: 110 mA @ +12V / 65 mA @ -12V documentation videos description / manual The TOP SECTION is the VC INTERNAL CLOCK and TRIANGLE LFO. The rate of the clock and LFO can be controlled by the RATE knob or CV. The clock signal is normalised to the trigger input of the FALL section. The TRIANGLE wave at the WAVE socket is also routed to the WAVE/RNDM SWITCH of the FALL section. When the switch is in the upper position and the attenuator is turned to the left, the wave will affect the FALL length. In the lower position, the FALL CV is slowly randomised. The SECOND SECTION is a FALL ENVELOPE GENERATOR. It can be triggered internally or externally and its fall time can be controlled by the FALL TIME knob or by CV. An inverted version of the fall output is also available. The THIRD SECTION is the SAMPLE & HOLD section. In one mode, it can sample and store a voltage from the FALL CV socket and output it at the SP OUT socket when the gate at GATE is high (Sample & Hold). In another mode, it can pass through the incoming voltage when GATE is high. It then samples and stores the last voltage applied when GATE is low (Sample & Track). The modes are selected by the MODE switch. The STEPPED potentiometer controls the level of the incoming CV signal. Internally the CLOCK is normalised to the GATE input. The CV input can be fed by an external signal, an internal SMOOTH RANDOM CV or by internal NOISE. Please note that this section may produce noise bursts in Sample & Track mode. The FOURTH SECTION is an AND / OR COMPARATOR that compares two mixable inputs and outputs the MAXIMUM CV and MINIMUM CV of both. It also generates a GATE at B-GATE if IN B is greater than IN A. Note that MIN LED barley flashes with low CV levels.The LAST SECTION is a DUAL SMOOTH RANDOM CV GENERATOR. It provides a constantly changing CV at SMOOTH I and SMOOTH II, slowly meandering in about 60 second cycles. The SMOOTH CV input will affect the SMOOTH outputs in unpredictable ways, sometimes not at all. Internally there is another SMOOTH RANDOM GENERATOR which is normalised to the RNDM switch position of the FALL section, the CLOCK CV and the SOURCE switch of the SAMPLE & HOLD section. Like the others, this SMOOTH GENERATOR may or may not be influenced by the INFLUENCE input. NOISE OUT allows access to the internal NOISE GENERATOR. You could also use the module as an OSCILLATOR. INFLUENCER QUICK START GUIDE: INFLUENCER_QUICK_START .pdf Download PDF • 1.34MB prev Up next

Oscillator oberhausen / analog complex oscillator / 42 HP ⇣ OBERHAUSEN is a CEM3340 based Dual Voltage Controlled Analog Oscillator designed to create a wide range of complex waveforms. It wasn't designed to offer the most perfect waveforms, but definitely ones with lots of character and grit. OBERHAUSEN features two principle oscillators and two modulation oscillators. 1/3 key features Analog Complex Oscillator 2x CEM3340 based Principal Oscillator 2x Modulation Oscillator 8x Waveform Output Mix Waveforms with 8 Slide Potentiometers Blend Principal Oscillators to One Main Output Create a Wide Range of Different Waveforms Skiff Friendly Wrong Polarity Protection specs & downloads Width: 42 HP Depth: 28 mm Power: 110 mA @ +12V / 90 mA @ -12V documentation videos description / manual Both principal oscillators offer five different waveforms. Each waveform´s level can be adjusted with a dedicated volume slide potentiometer and is available at a separate output jack. The sum of the OSC1 and OSC2 waveforms can be blended either manually with the large potentiometer in the middle of the module or via CV and is available at the main OUT socket. Each sum is also supplied at the OSC1 and OSC2 output jacks separately (after BLEND). OSC1 (Principal Oscillator) NOISE - White Noise with a fixed high pass filter at 320Hz. SUB - Two Sub-octave waves based on the SAWTOOTH waveform. They can be activated individually with the SUB -1 and SUB-2 switches. PULSE - PULSE waveform with adjustable PULSE-WIDTH via PW knob or CV with a dedicated attenuator PWM CV. TRI/SAW - Either a TRIANGLE or SAWTOOTH waveform according to the TRI/SAW switch. TONE - Accentuates either low or high frequencies of all OSC1 waveforms. FM - FM input for either EXPONENTIAL or LINEAR FM, adjustable via FM switch (mid position is off). V/OCT - 1V per octave input and a precision duplicate output of the incoming CV signal for further external processing. FRONT PANEL CALIBRATION & GAIN - A trimmer potentiometer for V/OCT tuning and OSC GAIN is located on the front side of the module. OSC2 (Principal Oscillator) TRI/SAW - Either a TRIANGLE or SAWTOOTH waveform according to the TRI/SAW switch. PULSE - PULSE waveform with adjustable PULSE-WIDTH via PW knob or CV with a dedicated attenuator PWM CV. OSC1´s PWM CV input is normalized to the OSC2 pulse-width modulation input. TIMBRE - Buchla inspired timbre generator. The timbre setting can be changed with the TIMBRE knob or via the CV input with an attenuator. SINE - Pure and analog SINE wave. FM - Either EXPONENTIAL or LINEAR FM, adjustable via FM switch (mid position is off). Can be generated internally or via external CV. FM VCA - The FM input´s amplification can be controlled via an internal VCA. As soon as a jack is plugged into the FM VCA input jack FM modulation will only be applied in accordance to an incoming CV signal (such as an LFO or Envelope Generator). OSC SYNC - OSC2 can be loosely or tightly synced to OSC1. OVERLOAD - Feedback Distortion with Clipping LED for all OSC2 waveforms. V/OCT - Separate 1V per octave input. OSC1´s 1V/OCT signal is multiplied via a precision buffer and normalized to OSC2´s 1V/OCT input, if no jack is present at the OSC2 V/OCT input. This routing can also be deactivated with the V/OCT INV switch. Additionally the normalized V/OCT signal can be inverted and routed to OSC2, if the V/OCT INV switch is in the down position. FM OSC (Modulation Oscillator) FM OSC only modulates OSC2´s frequency. The RATE can be set with the FM RATE knob. The oscillator´s waveform can be changed from TRIANGLE to OFF to SQUARE WAVE with the FM switch. The amount of modulation applied can be adjusted with the FM CV attenuator, if no jack is plugged into the FM input jack. An LED indicates if FM modulation is active taking any FM VCA modulation into account. With the help of the the FM switch the modulation type can be set to either exponential or linear. MOD OSC (Modulation Oscillator) The MOD OSC is a low frequency oscillator that internally controls BLEND CV, OSC2 TIMBRE CV and OSC1 PWM CV (which is normalized to OSC2 PWM CV). Its RATE can be adjusted with the MOD knob and the final depth is set by the destination CV attenuators BLEND CV, PWM CV and TIMBRE CV. The oscillator´s waveform can be changed from TRIANGLE to OFF to SQUARE WAVE with the MOD switch. MIX & BLEND In order to mix both principal oscillators and their waveforms OBERHAUSEN features two 4-channel mixers and a additional blend mixer. With the help eight dedicated slide potentiometers each waveform´s level can be set. Additionally you can blend between OSC1 and OSC2 either manually, via CV at the BLEND input jack or internally with the MOD OSC and BLEND attenuator. OBERHAUSEN QUICK START GUIDE: OBERHAUSEN_QUICK_START .pdf Download PDF • 453KB prev Up next

ST CASE is a Eurorack enclosure that you can 3D-print yourself. It is 42HP wide and can be used with M3 threaded strips that are inserted from the side. There is a cable holder on the back and the large holes on the bottom allow easy access to cables and boards for recalibration. st case / 3d-printable eurorack case / 42 HP ⇣ ST CASE is a Eurorack enclosure that you can 3D-print yourself. It is 42HP wide and can be used with M3 threaded strips that are inserted from the side. There is a cable holder on the back and the large holes on the bottom allow easy access to cables and boards for recalibration. You will need an M3 10mm screw to fixate the cable holder and four rubber feet for a non-slip stand. If you don't dare to mount your new DIY module directly into your Eurorack case, the ST Case is the ideal companion for testing newly built modules. Two Variants TYPE-A comes with a small power supply unit that users can solder themselves, and TYPE-B allows for the mounting of power supply modules from other manufacturers on the back. Inside the TYPE- A case there is space for a small USB-C power supply that delivers 150mA@-12V, 250mA@+12V and +5V (mA depends on the USB voltage used). It offers four ribbon power cable connectors. The PSU board can be purchased and soldered separately. TYPE-B has the same specifications as Type-A, but offers the option of mounting a third-party 4HP power supply module on the back of the case instead of a PSU PCB inside. This allows you to use your preferred 4HP power supply module with more power than the Type-A case PSU offers. key features 3D-Printable Low-Cost Slide-in Rail Brackets Lightweight specs & downloads Width: 42 HP Depth: 55 mm Power: PCB or 4HP Module TYPE-A (USB DIY PSU) Type-A DIY PSU TYPE-B (4HP PWR Module) Print your own! To have your ST CASE printed, you can download the STL-file below and contact your preferred 3D printing service. It is best to use PLA or PETG filaments. The average cost of printing the enclosure at an online print shop is around 30€ to 50€ (PLA; black; no finish). Local 3D printing services are often cheaper than those you find online. If you print the enclosure yourself on your own printer, it costs about 6€. The cases shown on this page were printed with PLA on a Bambu Lab X1C. DOWNLOAD STL (ZIP) Up

Filter & EQ rocinante´s gate / simulated low-pass gate with lfo and envelope generator / 10 HP ⇣ Rocinante´s Gate is not a classical low-pass gate (LPG) using vactrols, but goes way beyond that providing an adjustable envelope to control the "gate" through an analog filter. Sending a gate or trigger signal into the GATE INPUT will create these envelope shaped sounds you know from other LPGs. 1/3 key features Low-Pass-Gate based on an Analog Filter Internal Envelope Generator Adjustable Rise, Decay, Length, Fall Stages Internal LFO Gate Level CV Loop Mode Re-Trigger Mode Use the Envelope and LFO with External Modules Skiff Friendly Wrong Polarity Protection specs & downloads width: 10 HP depth: 28 mm power: 54 mA @ +12V / 26 mA @ -12V documentation videos description / manual The LOWPASS knob adjusts the range of frequencies being affected by the gate. If you turn it fully counter clockwise the whole frequency spectrum will be gated. Turning it clockwise will slowly add low frequencies to the gated singal until the whole spectrum is not affected anymore. ENV AMT sets the amount of how much the internal envelope affects the low-pass gate. RISE sets the time how long it will take the sound to go from silent to the loudest level. Just like the time it takes an LED inside of a vactrol to start lighting to its full potential. DECAY controls how long it takes to go from an initial peak to the "gate-phase" level. The length of this phase is varied by the LENGTH potentiometer. Finally FALL changes the time your sound will need to return to silence after the "gate-phase". Just like the time it takes an LED inside of a vactrol to shut down. RESONANCE sets the amount of filtered audio being fed back into the filter input. It can´t go into self-oscillation, but is able to create very crunchy and juicy overtones when turning clockwise. The internal Trigger Generator is being controlled with TRIG RATE and the RE-TRIG/LOOP SWITCH. Adjust the rate of the trigger and apply the singal to either a re-trigger circuitry that repeats the "gate-phase" as long as a gate signal is being applied or to a loop functionality that will create cycles of gates without an external gate or trigger. The ENV/INV SWITCH enables you to alternatively route an inverted envelope to the low-pass filter. This way you may create "ducking" or "side-chained" sounds. An internal triangle LFO can be routed via the LVL ATT attenuator to vary the amount of envelope that is being passed to the gate. The LFO will be deactivated if you turn the LVL ATT attenuator fully counter-clockwise or if you use an external signal to control the envelope amount by patching a CV signal into LVL CV. In addition to the Audio IN and OUT jacks you may take the signals of the internal envelope and LFO from the ENV OUT and LFO OUT to control external devices. In combination with the loop function Rocinante´s Gate is not only a Low-Pass-Gate, but also an LFO and ADSR Generator. prev Up next