Oscillator boba fat / dual analog drum generator / 14 HP ⇣ At its core, Boba Fat features two oscillators that empower producers to easily craft both earth-shaking sub-basses and delicate, enveloping kicks. BOBA_BACK_NEW.jpg 1/3 key features Analog Drum Generator Designed for Kick- and Bassdrums Two Voices: Soft Mallet and Hard Mallet Each Mallet may be triggered independently Internal LFO with Sync Volume and Boost per Voice Groove CV Input „Vari“ for Hard Mallet Mod CV Input for Soft Mallet specs & downloads width: 14 HP depth: 28 mm power: 95 mA @ +12V / 65 mA @ -12V documentation videos description / manual BOBA FAT is a dual voice bass- and kick-drum generator. The first voice "soft mallet" generates smooth and warm sounding bass and sub-bass sounds, whereas the second voice "hard mallet" is rather considered to create kick or tom sounds. The eight potentiometers on the left control the soft mallet generator. PITCH controls the frequency, LEVEL the volume and BOOST adds low frequencies turning it clockwise and reduces them turning it counter-clockwise. MOD RATE and MOD ATT control an internal LFO and its attenuation. The LFO will affect the frequency of the soft mallet voice only. Additionally the LFO can by synced to the incoming gate or trigger. TRIG SLEW acts as some kind attack control and reduces transients making it very easy to create very smooth sub-bass drums. DECAY and RELEASE control the duration of the sounds being amplified by an internal VCA. PRESENCE changes the prominence of the sound. You can adjust the response by setting a jumper on the back of the module to either FAST or SLOW, optimizing the soft mallet circuitry for sharper, plucky tones or deeper, sustained bass sounds. The three potentiometers on the very right affect the hard mallet generator. PITCH, LEVEL and BOOST have the same function as for the soft mallet part. PITCH will have a greater effect from 12 to 5 o´clock. Changes from 7 to 12 o´clock are rather subtle, but are set on purpose to add fine nuances with LEVEL and BOOST there. OUT VOL changes the overall loudness of both drums. GATE accepts any gate or trigger signal to activate the generators. A signal at only at GATE will trigger both mallets. If a additional trigger is inserted to GATE S, GATE only triggers soft mallet and GATE S triggers hard mallet separately. This way you can have individual drum tracks for both mallets creating very interesting rhythms. A CV signal at MOD CV will override the internal LFO and CV control soft mallet pitch. It doesn‘t exactly track 1V/oct, but you will be able to play some melodies. A trigger, gate or clock signal at MOD RST lets you reset the internal LFO with an external signal. Any CV signal at VARI will slightly alternate the volume or generate additional triggers for the hard mallet circuit (depending on the incoming voltage). This gives you endless ways of creating fine grooves and interesting rhythms. The circuit was designed to easily go into distortion/clipping to encounter the limits. You may be careful using LEVEL and BOOST controls. Boba Fat definitely needs some fine adjustments in order to find the sweet spots. If you feed the GATE input with a trigger at audio rate you can also use BOBA FAT as a weird sound generator or drone machine. prev Up next

Mixer & VCA spm / 3-channel spread mono mixer / 4 HP ⇣ SPM becomes particularly valuable as it enables the dispersion of two mono signals throughout the stereo field within an audio mix. This capability proves instrumental in tidying up the overall mix, resulting in a more expansive and enjoyable auditory experience for listeners. 1/3 key features Analog Mixer 3 Mono Channels Pan CH 1&2 with one Knob Skiff friendly Wrong polarity protection specs & downloads width: 4 HP depth: 30 mm power: 19 mA @ +12V / 11 mA @ -12V documentation videos description / manual SPM is a 3-Channel Mono Mixer with three volume potentiometers. The gain per channel can be adjusted with trimmers on the board, making this mixer suitable for line and Eurorack levels. In addition, you can pan channel 1 and 2 with the SPREAD potentiometer and thus spread both channels in the stereo field to the left and right in opposite directions. In the centre position, all channels are panned to the centre. If you turn the potentiometer to the left, channel 1 is panned to the left and channel 2 to the right and vice versa. This is very useful to quickly clean up a mix and widen the sound spectrum in the stereo field. prev Up next

Sequencer path / dual sequential switch / 10 HP ⇣ PATH proves to be an invaluable asset for distributing signals across various destinations while maintaining rhythmic coherence. It's equally adept at directing multiple CV signals to a single destination, resulting in dynamic and evolving envelopes. Remarkably, PATH also facilitates sequential audio signal routing and switching, adding to its versatile capabilities. 1/3 key features Dual Sequential Switch 2x4 bidirectional Outputs 2x1 bidirectional Inputs Reset Input Sequence Loop to 2, 3 or 4 Steps Mix Output Attenuverter for Each Side LED Indicators Wrong Polarity Protection specs & downloads width: 10 HP depth: 28 mm power: 45 mA @ +12V / 50 mA @ -12V documentation videos description / manual PATH is a dual four position switch that can be controlled with a trigger signal. Any signal that is fed to I/O A or I/O B is being supplied on one of the 4 fours I/O jacks depending on the switch position. This is an easy way to sequentially route one or two sources to four different destinations on each side. As the inputs are bidirectional you may also route 4 or 8 different signals to one or two destinations depending on the switch state if you insert signals into the eight I/O 1-4 jacks and forward the signal using the two I/O A and B jacks. When a trigger is inserted into the Trig Input the first jack I/O 1 is activated and a signal is passed through. With the next trigger jack I/O 2 is activated and so on. After the fourth jack the fist jack will be on again. If you want to shorten the sequence, you may use the switches to loop the sequence to 2, 3 or 4 steps on each side individually. A trigger on the Reset Inputs will reset the sequence to the first step independently for each side. Additionally the Inputs I/O A and B or the currently active I/O 1-4 jacks will be supplied on the Mix Jack depending on the direction you have patched. Each side may be attenuverted using the the potentiometers on top. An LED is indicating the currently mixed signal. prev Up next

ST Modular is recognized for its DIY Euroack Modules that enable users to construct their modular synthesizers utilizing provided PCBs and self-obtained components. The range of modules offered encompasses oscillators, filters, sequencers, LFOs, envelope generators, and more, all designed by ST Modular to be exceptionally versatile. These modules facilitate a broad spectrum of sound manipulations and modulation avenues. NEW! PASSAT PASSIVE ATTENUATOR / 0HP NEW! HONEYEATER V3 CEM3340 ANALOG VCO WITH SUB-OSCILLATOR / 6HP NEW! CUERLY 3-CHANNEL STEREO MIXER WITH CUE / 6HP appetizer social media youtube modular grid instagram krakong euphoria Up

WORKMATES is a series of little passive 0HP modules that offer simple but effective audio and CV processing in conjunction with your modular or semi-modular synth. Note that these are passive modules without any power consumption. As a result, you will have a bit of signal level reduction when patching a WORKMATE within your modular processing chain. Nevertheless these little helpers are very convenient solution providers if you run out of HP. workmates / passive eurorack tools / 0 HP ⇣ WORKMATES is a series of little passive 0HP modules that offer simple but effective audio and CV processing in conjunction with your modular or semi-modular synth. Note that these are passive modules without any power consumption. As a result, you will have a bit of signal level reduction when patching a WORKMATE within your modular processing chain. Nevertheless these little helpers are very convenient solution providers if you run out of HP. They are also the easiest way to learn SMD soldering. Practice your soldering skills without any fear of shorts and magic smoke. passat PASSAT is a fully passive 4-channel attenuator featuring four smooth sliders for intuitive level control. Each input has its own dedicated slider, allowing you to reduce the signal level by moving the slider downward. At the lowest position, no signal is sent to the output. At the highest position, the input signal is passed through unchanged. Input 1 is internally normalized to inputs 2–4. If no cable is connected to inputs 2–4, the signal from input 1 is automatically routed to those channels. This allows PASSAT to act as a simple passive signal multiple with individual attenuation per channel. As a completely passive design, PASSAT requires no power and does not consume any of your precious case HP. It is an ideal utility for controlling multiple audio or CV sources from a single point. Use PASSAT to attenuate Eurorack audio signals to line level, mix multiple CV sources, or precisely scale control voltages for sensitive module inputs. pix PIX is a passive mixer with 3 stereo inputs and 1 stereo output. Each channel has its own volume control and tilt EQ. With the EQ you can emphasize either low or high frequencies. Due to its passive design, a very compact format could be realized, with dimensions of only 55mm x 65mm. It was designed for use with modular level inputs, which are further processed by line-level devices with volume amplification. You can also use this mixer with line-level synthesizers, but you will lose quite a bit of volume. If too much gain is then used in the downstream processing chain, the noise floor can be raised to an uncomfortable level. Nevertheless, PIX has been used successfully with line-level signals. It has an input impedance of around 1.2kΩ at 1kHz. PIX is your solution for compact mixing requirements in a mobile modular setup. split Splits MIC MONO INPUT and STEREO OUTPUT signals to individual jacks from TRRS Combo Jack. The microphone input has a level potentiometer. Ideal for easy sampling and mixing with devices like OP-Z or tablets. touch TOUCH is a passive, touch-sensitive attenuator. Any signal applied to the input jack passes through your skin to the output jack. Depending on the amount of pressure and the moisture of your finger, the resistance decreases, allowing a larger portion of the signal to pass through. trs switch TRS MIDI type A to/from TRS MIDI type B adapter. Swaps the tip and ring of a 3.5mm stereo jack. Ideal for connecting TRS MIDI devices with different TRS MIDI standards (e.g. Novation device with KORG device). lpg LPG is a passive vactrol based low pass gate. It also has a passive low pass filter for subtle tone control. By choosing different kind of vactrols you will achieve contrasting kind of gate responses, from lush and slow to very fast and snappy. clipping cat CLIPPING CAT is a passive distortion that can blend between hard clipping crossover distortion and softened LED clipping that is only applied to negative peaks of the signal. Hence you can control the type of distortion from harsh clipping to a rather subtle distortion with more even order harmonics. “Clipping Cat” will wink if you turn the potentiometer counter-clockwise for softened distortion and will stare at you with both eyes turning it clockwise for harsh clipping. Clipping Cat is also availbable as an active 3U module! swap SWAP exchanges the destination of one or two sources (audio or CV) with the push of a button. This way you can route two different signals to the corresponding destination of the other input or route one signal to either one of two patch cables. You may also use it as a simple on/off switch. There might be audible clicks when using it to swap/switch audio. combiner COMBINER is either a 4 to 1 Passive Mixer, an or-wired Trigger/Gate Combiner or a 1 to 4 Passive Mult. Before soldering you have to decide which functionality you prefer. If you solder resistors you will get a four-channel mixer and if you solder diodes you will have a trigger/gate combiner. For a Passive Mult you just need to short the pads mentioned in the BOM. eq EQ is a one knob low and high frequency EQ with mid frequency range control. Turning the knob counter-clockwise will filter out frequencies above 1kHz and turning it clockwise will filter out frequencies below 1kHz. Not filtered frequencies are emphasized a bit to have a sharper sound when lower frequencies are filtered and to have more bass when higher frequencies are filtered. The little mid frequency range knob moves the cutoff range around 1kHz and changes how much the not filtered frequencies are emphasized. attenuator ATT is a simple attenuator that allows level control over CV or audio signals. If you want to use it for audio and you don´t have a logarithmic pot at hand, you have the option to use a linear potentiometer and solder an additional resistor for a fake logarithmic response. videos Up

Whether it's the 3U Eurorack, 1U Eurorack, desktop synthesizer, music tools, or discontinued devices – this page showcases all the module designs by ST Modular. ALL MODULES AT A GLANCE Whether it's the 3U Eurorack, 1U Eurorack, desktop synthesizer, music tools, or discontinued devices – this page showcases all the module designs by ST Modular. oscillators filter & eq sequencer st case (3dp) modulation & random effects mixer & vca utilities & psu 1U format blank panels zero hp euphoria krakong midi thru cv bench workbench mixbench hum protector workmates discontinued oscillators oberhausen eurokastle honeyeater alstaden chiasso V2 cyllene give V2 trommelmaschine boba fat drum klangmaschine pyxis hh radio kau'i yaksha´s fate ⇡ cinco filter & eq natural state efi stereo eq envoltura rocinante´s gate werner dirty dan franz hans karl 3xEQ ⇡ sequencer chasing lights push shikensa serial flitzem deför isi wren path hapha ⇡ modulation & random influencer slopes zeitreise cv expert cion lfor wave clanches envoltura lfot envelope tryfelo 2xlfo adsr yace good & evil tricay catch ⇡ effects clipping cat inaki emoo gritzner reverb stereo comp delay singer diz buff ⇡ mixer & vca sum mix & pan stereo sum duck feed sum v2 vca send stm μsum scva phoebe spm fay v2 mia matrico ⇡ cuerly utilities & psu pae da sl pow! pedal pal pedal pal stereo usb stereo total controller cv pan switched cause & effect uit once in a while two sides toolbox mult cv scan ⇡ 1u format lange anna & anna´s langer arm ap cause & effect mia slide toolbox ⇡ blank panels 1 HP 2 HP 4 HP 8 HP ⇡ st cases (3D-printable) 42 HP 20 HP ⇡ ZERO HP is a series of ST Modular devices that are not mounted in a Eurorack case. They don't take up precious HP and can be placed on your desk to expand your Eurorack or synthesizer setup. Some are USB-powered and some are passive, like the much appreciated WORKMATES. workmates pix combiner touch swap clipping cat lpg split trs switch eq attenuator ⇡ midi thru ⇡ cv bench ⇡ hum protector ⇡ workbench ⇡ mixbench Up

Modulation & Random zeitreise / sample & hold, slew limiter and meandering cv generator / 6 HP ⇣ ZEITREISE is about the slow sequence of events that helps to take voltage on a journey through time. Its your perfect tool for creating slow and unpredictable parameter changes via control voltage. 1/2 key features Clock Generator Sample & Hold Slew Limiter 3x Slowly Meandering CV Noise Generator Internal Normalizations Skiff Friendly Wrong Polarity Protection specs & downloads width: 6 HP depth: 30 mm power: 60 mA @ +12V / 45 mA @ -12V documentation videos description / manual ZEITREISE is the German term for "time travel" and the time in this context is a clock signal that is set using the S&C CLK potentiometer on the top of the module. It´s rate can be as slow as 0.2 Hz ( approximately 12 bpm) and as fast as 21 Hz (approximately 1,236 bpm). This clock signal is sent to the internal Sample & Hold (S&H) circuit. A S&H circuit in modular synthesizers captures and holds voltage samples at specific intervals, usually triggered by an external clock, creating a stepped output that is useful for generating random or sequenced voltages for modulation. With ZEITREISE, any voltage applied to the S&H CV input is sampled, held and output to the S&H OUT socket with each clock pulse received, either externally via the S&H CLK input or, if this input is not patched, via the internal clock generator. You can reduce the voltage applied to the S&H CV input with the corresponding attenuator. The S&H output is forwarded to a slew limiter. A slew limiter smoothes or limits abrupt voltage changes and ensures controlled slew rates of the input signals, resulting in smoother transitions and curved waveforms for modulation and sound shaping. The amount of slew rate that attenuates the voltage changes can be increased by turning the SLEW IN potentiometer to the right. You can also feed external CVs, such as pitch voltages, into ZEITREISE via the SLEW IN socket. This allows you to create a portamento effect for tonal sequences. Below the S&H and slew limiter you will find three meandering CV outputs REISE EINS, REISE ZWEI and REISE DREI that slowly change their voltage levels (+0V to +8V). The voltages come from different stages within the same circuit. Take these voltages from the REISE outputs and reduce their voltage levels with the appropriate attenuators. Please note that the LEDS display the voltage levels before the attenuators to provide better feedback on the status of each REISE output. These voltages are great for slowly controlling external parameters such as sample playback points in samplers, filter cutoff frequencies or timbre and harmonics in oscillators. There is an additional output at the bottom, which supplies either the clock from the S&H CLK input (patched or normalized) or white noise. You can select one of these outputs using a jumper on the back of the module. ZEITREISE QUICK START GUIDE: ZEITREISE_QUICK_START .pdf Download PDF • 566KB prev Up next

Utilities & PSU pedal pal / efx pedal audio bridge & expression pedal module / 4 HP ⇣ Pedal Pal is your way to use guitar effect pedal s with the Eurorack Modular System. 1/3 key features Mono Send with Attenuation Stereo Return with Gain for each Channel Output Gain of max. +20 dB Expression Pedal Control (CV or Manually) Voltage limited to 3V or 5V adjustbale via Jumper Wrong polarity protection specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 21 mA @ -12V documentation videos description / manual PEDAL PAL features a mono send with pedal attenuation and a stereo return with individual channel gain adjustment from the pedal. You can fine-tune attenuation and gain through trimmers located on the module's back. Furthermore, it doubles as a CV expression pedal using a TRS cable. You have the option to manually manipulate your effect pedal's parameters by plugging into its Expression In jack, akin to using an expression foot pedal. Alternatively, you can employ any CV source (like an LFO or Envelope) to automate effect adjustments. When external CV is applied, the potentiometer functions as an attenuator. The CV delivered to the pedal's expression in jack can be constrained to either 3V or 5V, adjustable via a jumper on the rear. It's important to note that CV control over effect parameters will only function if your pedal includes an expression pedal TRS input. To establish connectivity between the module and your stereo effect pedal, three 6.3/3.5 mm adapter cables and a 6.3 mm TRS cable will be required. prev Up next

Meet the Swiss Army knife's ambitious cousin – the multitasking marvel that sits in front of your Eurorack, ready to unscrew musical conundrums, slice through soundscapes, and twea-zor its way into your sonic heart. workbench / usb powered multi utility tool / 0 HP ⇣ Meet the Swiss Army knife's ambitious cousin – the multitasking marvel that sits in front of your Eurorack, ready to unscrew musical conundrums, slice through soundscapes, and twea-zor its way into your sonic heart. key features Multiple LFO Attenuator documents Fader Swap USB-Power description / manual Multiple 1 to 3 multiple with one inverted output. The multiple is normalised to the swap unit of the module. LFO The LFO provides a triangle and square wave and can be reset by an external gate or clock signal. The LFO signal can be attenuated with the slider pot and its rate may be varied with the RATE potentiometer. An inverted copy of the triangle wave is normalised to channel A1. An inverted copy of the square wave is normalised to channel B1. These connections are independent from the LFO attenuator and may be interrupted by patching a cable into the channel A1 or B1 input or by the normalisation selection switches. You can choose to normalise the LFO or a fixed voltage of 0V to +5V adjustable with the VOLTAGE knob for all channels at once. Attenuator/Mixer WORKBENCH has four channels A1, A2 and B1 and B2. Any signal (audio or CV) patched into the inputs are attenuated by the slider pots. The channels of each section are daisy-chained, thus they can be mixed or the second channel can act as an offset (CV). The normalisation switch selects which voltage will be fed into the input if no cable is being patched (LFO or fixed voltage 0V to +5V). Fader The Fader mixes between two sources with a single slider. Both channel sections A and B are mixed into a fader circuit, if no cable is inserted into their outputs and the fader inputs. The fader output can be attenuated with the LVL knob. Swap The Swap unit exchanges the destination of one or two sources with the push of a button. This way you can route two signals to the corresponding destination of the other input. Anything patched into the Mult will also be multiplied to the Swap inputs of nothing is patched here. USB Power WORKBENCH is powered by standard USB power (+5V) and is fully compatible with your Eurorack system. You can choose to power it with a Mini B, Micro B or Type C USB cable. You can solder all USB connect or just one of them, if you have a favourite USB cable you want to use. Up

Effects gritzner / pt2399 delay with two switchable inputs and internal lfo / 8 HP ⇣ GRITZNER Delay is a special kind of module that is able to make all sorts of weird delay sounds, from chorus like effects to total destruction of the original signal. There are no boundaries for your crazyness here. Though the two switchable inputs and the LFO reset always make its output fit into a rythmical pattern of your patch. 1/3 key features PT2399 Delay Two Switchable Inputs, one High-Pass-Filtered Internal LFO for Input Switching Internal LFO for Delay Time Changes LFO with Attenuator and Reset Delay Time CV Input Skiff friendly Wrong polarity protection specs & downloads width: 8 HP depth: 28 mm power: 50 mA @ +12V / 30 mA @ -12V documentation videos description / manual GRITZNER is a short delay with two individual inputs that may be activated alternativley either by hand or with a gate signal. IN A is a standard audio input whereas IN B is a high pass filtered input. Frequencies below 320hz will be filtered out which is quite handy for some delay settings. If the MAN/LFO switch is on the left you can switch between both inputs manually using the A/B MAN switch. If the MAN/LFO switch is in the right position an internal square wave LFO automatically switches between both inputs according to the LFO range set with the help of the LFO potentiometer. Alternatively you may patch an external gate signal (from a sequencer for example) into GATE A/B in order to switch between inputs. The Delay itself is a classic PT2399 delay with its very special touch and a delay time ranging from 30-190mS. It has manual controls for the Delay Rate (going beyond the ICs operation range), Feedback and Wet. The delay rate can be voltage controlled with an external signal or with the help of an internal LFO. You can choose between a triangle and a square wave LFO and you may attenuate its signal with the LFO ATT attenuator. On top the LFO is resettable via the LFO RST input in order to get delay changes in a rythmical manner. The LFO rate can be adjusted with the LFO potentiometer. 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

Effects diz / delay, noise & signal destroyer / 3 HP ⇣ DIZ is based on the PT2399 chip and uses its extreme settings. The module was designed to create all sorts of noisy and glitchy sounds from any signal. The Input will be delayed, feedbacked or completely destroyed. 1/3 key features Weird Noise Maker Distortion, Delay, Feedback Very easy to use, crazy Sonic Potential specs & downloads width: 3 HP depth: 25 mm power: 15 mA @ +12V / 22 mA @ -12V documentation videos description / manual The potentiometers control the settings Amount, Diz ziness and Giddiness. The last one may be switched on or off via switch. Some say Diz ziness controls the delay time and Giddiness the feedback. But the effect of the potentiometers depends very much on the presence of the incoming singnals. You will never be sure what happens next. prev Up next