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Effects reverb / short reverb / 4 HP ⇣ Reverb is a very simple 4HP Reverb module based on the Accutronics Digi-Log- Reverb BTDR-2H. 1/3 key features 2 to 2.85 Seconds Reverb Time depending on the BTDR Type Tone Control “OSC” Switch for Feedback Loops “Depth” Reverb Size Control Wrong Polarity Protection specs & downloads width: 4 HP depth: 55 mm power: 65 mA @ +12V / 0 mA @ -12V documentation videos description / manual The unit features typical Reverb Amount and Feedback controls, along with an extra Tone knob to adjust the input audio's frequency for the reverb. Furthermore, an OSC toggle activates a reverb signal feedback loop, while the Depth setting can be likened to a "cathedral" switch, expanding the reverb's expanse. This straightforward design produces concise reverberations along with abundant noise and captivating feedback chaos. prev Up next

Oscillator chiasso v2 / analog fm drum synth / 14 HP ⇣ CHIASSO V2 stands as an exceptional oscillator, perfect for generating dynamic Techno sounds that consistently captivate through each knob adjustment. In its V2 iteration, it retains the same exceptional sound foundation found in V1. However, V2 introduces innovative enhancements like CV decay inputs and an added noise source for oscillator A, promising even more sonic possibilities. 1/3 key features Two Analog VCOs Two LFOs SQUARE and TRIANGLE Waveforms for OSC and LFO Cross Modulation CV Decay Fade Potentiometer to adjust the Oscillator Mix Trigger and Pitch Normalization Wrong Polarity Protection specs & downloads width: 14 HP depth: 28 mm power: 55 mA @ +12V / 35 mA @ -12V documentation videos description / manual The module has two oscillators that can generate square or triangular waveforms that you can seamlessly crossfade with the WAVE potentiometers. Each oscillator has its own CV decay envelope, a pitch potentiometer and can be triggered with a trigger signal patched to the left TRIG input as well as individually via the left and right TRIG inputs. A fade potentiometer offers the possibility to manually fade between both oscillators to adjust the mix. Noise can be added to the left oscillator A to make it a little dirtier. There are PITCH CV inputs with attenuators for each voice which, although they don´t track exactly 1 V/OCT, are very useful for changing the mood of each signal to create very organic and moving sounds. The audio output of each side is normalised to the PITCH CV input of the opposite side. The left side is connected after the VCA and the right side before the VCA to achieve different types of cross-modulations and to apply modulation according to incoming trigger signals. In addition, the module has two individual LFOs with square or triangular waveforms that can be fed to the oscillators for further frequency modulation synthesis. Both LFOs have an attenuator to adjust the strength of the modulation and a RATE potentiometer to change the speed of the LFO cycle. The signals of the two oscillators are mixed and output at the OUT socket. 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

Mixer & VCA cuerly / 3-channel stereo mixer with cue / 6 HP ⇣ Cuerly is a compact 3-channel stereo mixer with cue functionality, allowing you to pre-listen to signals before sending them to the main mix. It’s the perfect mixer for live performances in a small Eurorack setup. 1/4 key features 3 Stereo-Channels Level Control per Channel Cue Buttons for Pre-Listening Heaphone Output Headphone Level Control Mix to Headphone Control Max. Gain +20dB Wrong polarity protection specs & downloads width: 6 HP depth: 40 mm power: 43 mA @ +12V / 35 mA @ -12V documentation videos description / manual Cuerly features three stereo channels, each with independent level control. You can connect a stereo signal to any of the three inputs: IN1, IN2, or IN3. The level of each channel is adjusted using the corresponding VOL1, VOL2, and VOL3 knobs. Mono signals can also be processed by patching a cable into the left input, which will automatically normalize the signal to the right channel. The final mix is sent to stereo headphones via the TRS PHONES output. You can control the headphone volume using the VOL HP potentiometer. To preview a signal, simply press the corresponding cue button. The cued signal is removed from the main mix and routed exclusively to the headphone output. The VOL1, VOL2, and VOL3 knobs continue to function as level controls, even when the signal is cued through the headphones. The LEDs serve as level indicators for the cued signal only. For direct comparison, turn the MIX TO HP knob to the right. This routes the main mix to the headphones along with the cued signal, allowing you to compose and patch new sounds while still monitoring the main output - without needing to remove your headphones. You can cue any combination of the three channels. If all three cue buttons are active, no audio will be sent to the main output, and the signal will be routed only to the headphones. Additionally, the cue buttons can function as mute controls for the main mix. Cuerly offers a maximum gain of +20dB, with independent gain adjustment for each of the six inputs. Gain levels can be fine-tuned using the trimmer potentiometers located on the back of the module. Cuerly is designed specifically for live performances, where sounds are improvised and created on the fly. Its compact size makes it the ideal addition to your small performance case. CUERLY QUICK START GUIDE: CUERLY_QUICK_START_GUIDE .pdf Download PDF • 1.82MB 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 fay v2 / fader, vca, overdrive, decay / 24 HP ⇣ FAY Combines four functional units in a tiny 4HP Module. It consists of a Fader, a VCA, an Overdrive and a Decay/Release Envelope. 1/3 key features Manual Fader/Mixer/Switch Voltage controlled amplifier Decay or Release Envelope Overdrive Functionality Volume Control LED indication Wrong polarity protection specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 10 mA @ -12V documentation videos description / manual If you insert two audio sources into the jacks IN A and IN B you may fade between both sources manually using the potentiometer on the bottom. This way you can either mix two waveforms or switch between them.The signal is directly routed to the VCA. Here you can control the volume or amplitude of the audio either manually or via control voltage using the CV jack. If there is a trigger signal at the TRIG input you will be able to control the VCA with the internal decay or release envelope (selectable via jumper). Simply insert a trigger signal into the TRIG jack and use the potentiometer below the LED to control the decay length. The LED indicates the current state of voltage. The envelope time can be set to 10ms or 3s via jumper. Thus is can be very snappy for percussion purposes. The decay or release envelope is also provided at the ENV OUT jack to control external modules via CV. Additionally there is an OVERDRIVE option that may be activated via switch. It is also affected by the CV input and shapes the sound to a certain extend. The OVERDRIVE is fairly subtle and more audible on short decay times. Nevertheless it really crunches up some simple waveforms. In contrast to the first version FAY Mk2 has an improved PCB layout and now only consists of one PCB to solder. prev Up next

The HUM PROTECTOR HP200 is probably the most compact stereo hum eliminator on the market. It reliably protects your audio signal from any noise and hum. hum protector hp200 / hum and noise eliminator / 0 HP ⇣ The HUM PROTECTOR HP200 is probably the most compact stereo hum eliminator on the market. It reliably protects your audio signal from any noise and hum. key features 1x Stereo or 2x Mono Compact Design No Power Required Easy to Solder documents "Finally I have no more USB noise in my setup!" "I have never had such a compact and good noise eliminator." videos description / manual Offering either two mono channels or one stereo channel, the device comes in two variants. The initial version incorporates a more economical and compact SMD audio transformer, whereas the alternative version integrates larger through-hole audio transformer with marginally superior specifications. Despite this distinction, both iterations are recognized for their commendable audio quality, exhibiting no discernible differences. From a technical standpoint, audio transformers serve to electrically isolate connected devices, effectively eliminating noise and hum in the audio signal path. The HP200 functions as a desktop unit, eliminating the need for valuable HP (horizontal pitch) in a Eurorack case. Its versatility extends to modular setups, as well as compatibility with grooveboxes, samplers, and other synthesizers, particularly those powered via USB. To eliminate hum or noise when connecting your synth to a mixer for example, just insert the HUM PROTECTOR between the devices by connecting the synth output to the HUM PROTECTOR input and the HUM PROTECTOR output to the mixer input. This should resolve the issue. You can also utilize it to eliminate noise from an audio interface by connecting it to the interface output and the monitor's input. Will there be a full size jack plug version? Probably not, as the product is designed for Eurorack and USB-controlled devices that typically use 3.5 mm jack plugs. In addition, there are already numerous versions with full-size jack sockets. Up

Sequencer shikensa / cv and trigger sequencer / 12 HP ⇣ SHIKENSA is a 5-stage CV and trigger sequencer with some nifty features. 1/3 key features 5-Step Analog Sequencer Outputs 3 CV and 1 Trigger Signal 3 Different Track Lengths Internal Clock with Swing and Tempo CV External Clock, Reset and Hold ADD Input for Sequence Transposition LEVEL Control via CV for LVL OUT Wrong Polarity Protection specs & downloads width: 12 HP depth: 28 mm power: 55 mA @ +12V / 41 mA @ -12V documentation videos description / manual Shikensa offers the flexibility of an internal clock set via the tempo potentiometer or synchronization to an external clock. Its internal clock enables swing effects through the CLK CV attenuator, allowing tempo adjustment using external CV signals at the CLK CV input. Additionally, CV control permits sequence reset or hold actions. It is possible to change the length of the sequence from a maximum of 5 steps to 4 or 3 steps using a toggle switch. There are five sliding potentiometers that allow fine changes in CV values per step. There is a trimmer on the back of the PCB to adjust the maximum voltage from +5V to +10V. SHIKENSA has a total of four outputs. OUT is the standard CV output that you would connect to a 1V/OCT input of an oscillator. If you apply a control voltage to the ADD input, you can transpose the output of OUT. IN/CK outputs either an inverted signal of OUT or the internal clock signal (this can be changed by swapping two resistors). LVL OUT carries the same signal as OUT, but its level can be changed via CV. An attenuator allows control over the amount of change. When nothing is connected to the LVL CV input and the attenuator is turned up, an internal pitch envelope is added to LVL OUT, which is great for creating percussive sound sequences. These three outputs can be used simultaneously to change not only the pitch of an oscillator, but also other parameters such as waveshapers, filters or effects according to the sequence. TRIG provides a trigger signal that can be activated or deactivated per step. Five latching push-buttons on the bottom allow you to create rhythmic patterns. An LED indicates whether a trigger signal is being output. SHIKENSA QUICK START GUIDE: SHIKENSA_QUICK_START .pdf Download PDF • 716KB prev Up next

Utilities & PSU pow! / usb power supply unit / 3 HP ⇣ POW ! is a 3HP USB Pow er Supply Unit for Eurorack. 1/3 key features USB PSU for Eurorack 300mA +12V 150mA -12V 500mA +5V from USB On/OFF Switch LED indication Skiff friendly specs & downloads width: 3 HP depth: 25 mm power: +5V USB-C Power documentation videos description / manual With this compact module, you can power your Eurorack modules from any +5V USB source. Simply connect a USB-C cable to the onboard jack. The module provides up to 300 mA at +12 V and 150 mA at −12 V via the 2×5 header on the underside of the PCB. Use a standard Eurorack power cable with 2×5 female connectors on both ends. A built-in switch lets you turn the power on and off. The status LED shows when the unit is active. Designed for small setups, this PSU is ideal for one or two modules in compact DIY cases. If you are interested in a PCB-only version, please take a look at POW! PCB: → mini power supply unit for eurorack modules / PCB only prev Up next

Utilities & PSU POW! PCB / mini power supply unit for eurorack modules / PCB only ⇣ POW! PCB is a compact power supply board for small Eurorack cases or testing setups. 1/2 key features USB PSU PCB for Eurorack max. 220mA +12V max. 200 mA -12V 500mA +5V from USB optional LED specs & downloads PCB only power: +5V USB-C or 9V DC Power documentation videos description / manual POW! PCB is a compact power supply for small Eurorack setups and testing environments. It can be powered either via USB-C (+5V) or a 9V DC input. The board generates stable ±12V rails and provides them through a standard 2x5 Eurorack power header. When powered via USB, +5V is also available on the header. Use a flying bus cable to connect more than one module. A status LED indicates when the board is active. The PCB is designed for low-power applications such as small cases or quick testing setups. It is well suited for bringing DIY modules into operation without the need for a full Eurorack power system. prev Up next

Modulation & Random envelope / cv envelope generator / 12 HP ⇣ ENVELOPE presents a classic ADSR/AR envelope generator elevated by advanced controls and shaping capabilities. Tailored for crafting diverse envelopes, it offers precise adjustments that result in dynamic control voltages, adding an organic and captivating dimension to your sounds. 1/3 key features ADSR/AR Envelope CV Control over all Stages Attenuator per CV Input Shape Control for Attack, Decay and Release Internal Envelope-Controlled Amplifier Loop Function Internal Modulation 0V to +10V Range specs & downloads width: 12 HP depth: 30 mm power: 56 mA @ +12V / 36 mA @ -12V documentation videos description / manual The length of each ADSR stage can be changed with four slider potentiometers. Times range from 1ms in FAST MODE to half a minute in SLOW MODE. The FAST MODE allows a very fine adjustment of short envelopes, which is especially handy for creating percussive sounds. There are dedicated SHAPE potentiometers for the ATTACK, DECAY and RELEASE stages. With these you can switch from exponential to logarithmic response curves. Each phase has its own CV input to control its timing. Dedicated attenuators allow you to adjust how much voltage is applied. The slider LEDs indicate if a voltage is being processed and if the timing of a stage is being changed. If nothing is patched to the CV inputs, the attenuators suppress the portion of each stage's voltage that is passed to the OUTPUT jack. This allows you to quickly change the envelope without changing the original slider settings. In addition, there is a CV input RF CV to control all rising and falling stages at once (without LED indication). ENVELOPE also has an internal GATE and MODULATION source. When the LOOP/RESET switch is set to LOOP, the envelope is internally triggered at a rate set by the MOD RATE pot. It also allows you to internally apply a TRIANGLE or SQUARE-WAVE LFO to any stage when nothing is patched to the CV inputs and the attenuators are turned clockwise. The rate of the LFO is also controllable with the MOD RATE pot. You can change the waveform of the LFO with the TRI/SQU switch. Setting the LOOP/RESET switch to RESET will reset the internal LFO each time a gate or trigger is received at the TRIG/GATE input. The TRIG/GATE switch determines whether a trigger or gate signal should be applied to the TRIG/GATE input. When you set the switch to TRIG, the envelope type changes to ATTACK and RELEASE only. If you need an envelope that is easy to change, this is the correct setting. GATE mode activates a full-featured ADSR envelope with many adjustment options. In addition to the standard envelope output ENV OUT, there is also an inverted output ENV INV. The voltage ranges of the ADSR outputs are about 0V to +10V for the normal output and 0V to -10V for the inverted output. To complete the packed feature list, ENVELOPE is also equipped with an internal VCA, which is internally connected to the envelope output. Simply connect an audio source to the VCA IN input and you'll have an envelope-controlled signal available at the VCA OUT jack. ENVELOPE QUICK START GUIDE: ENVELOPE_QUICK_START .pdf Download PDF • 710KB prev Up next