uit / trs balanced output / 4 HP ⇣ UIT is a balanced output module that supplies an active output on the cold terminal of the TRS jacks, producing the same signal as the hot terminal but phase-inverted. This allows stable driving of long cables at low noise levels. It is based on high-performance, fully differential operational amplifiers and laser-trimmed thin-film resistors that exibit low noise and distortion and a wide output swing. 1/4 key features TRS Balanced Output Low Noise and Low Distortion Headphone Output Volume Control Phantom Power Protection PCB Outputs for Case Mounted Jacks Wrong polarity protection ​ specs & downloads width: 4 HP depth: 35 mm power: 31 mA @ +12V / 25 mA @ -12V documentation videos description / manual This module offers two TRS 6.3mm jacks that provide the BALANCED OUTPUT signal and a TRS 3.5mm HEADPHONE OUTPUT. Both have dedicated VOLUME potentiometers with +6dB gain. Two LEDs indicate the level of both incoming signals. The left input is normalized to the right input if there is no signal present. The outputs are protected against unwanted phantom power voltages. There are also PCB outputs available if you want to solder case/cabin mounted output jacks directly to the UIT PCB. UIT is supposed to be the last module in your modular chain and connects the modular world with any other studio or stage input equipment. prev Up next

buff / analog distortion and sustainer / 4 HP ⇣ BUFF is a straightforward yet potent distortion module that can significantly enhance your sounds. It introduces a rich fuzz texture to the input signal, all the while preserving a clear bass and delightful high-frequency response. 1/3 key features Analog Distortion/Sustainer Easy to Build and Cost Effective Tone Control Sustain Control Level Control Wrong polarity protection ​ specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 61 mA @ -12V documentation videos description / manual BUFF can turn any weak-sounding tone into an earth-shaking experience and is especially suitable for creating haedbanging techno percussions. Equipped with a TONE control for accentuating low or high frequencies, and a SUSTAIN control that facilitates the creation of a protracted and velvety sustain. LEVEL dictates the degree of distortion infused into the signal. Kindly be aware that rapidly adjusting the TONE knob may introduce a DC offset, leading to a momentary fading of the sound. Unfortunately, addressing this issue would compromise the delightful quality of the sound in its current state. Kindly decide in advance, whether you are soldering or purchasing the module, if this is a matter of concern for you. prev Up next

cause & effect / voltage reader, sample & hold and gate switch / 4 HP & 20 HP ⇣ Introducing the Cause & Effect module – the maestro of musical mischief in your Eurorack setup. It's like the conductor of a whimsical symphony, where flipping switches and twiddling knobs creates a chain reaction that turns chaos into pure sonic magic. Who knew that cause and effect could be this much fun? 1/6 key features Three Utility Tools Voltage Reader for Gates Hold for Sampled Voltages Gate Switch Gate Switch Inverter Two Hold Modes Inputs Normalised Accepted input voltages for all inputs: -8V to +8V (CV & Audio). Available in Intellijel and Pulp Logic Tile Format Skiff friendly ​ specs & downloads width: 4 HP & 20 HP depth: 30 mm power: 35 mA @ +12V / 31 mA @ -12V documentation videos description / manual The first unit is a VOLTAGE READER, that outputs a gate signal according to a limit set with the help of the READ LIMIT potentiometer. If the limit set (any voltage between -6V and +6V) is reached by the incoming voltage, the R GATE output will be high. The limit may also be controlled via external control voltage at the LIMIT CV jack. This so-called comparator outputs a gate with an amplitude of +/-5V, which also makes it usable as a square wave generator with pulse with modulation via the READ LIMIT potentiometer. Any voltage applied to READ IN is normalised to HOLD IN and IN A. R GATE is normalised to H GATE and SW GATE. This way only one signal is necessary to control both other units. The second unit is called HOLD. In one mode it can sample and store a voltage from the HOLD IN jack and supply it at the HOLD OUT jack, if gate at H GATE is high. In another mode it can pass through the incoming voltage when gate is high. It then samples and stores the last voltage value applied when gate switches to low. The modes are selectable via the HOLD MODE switch. The third unit is a GATE SWITCH. Apply a gate signal to the SW GATE input to route IN A or IN B to OUT. If the gate signal is high, IN A is switched through, and if the gate signal is low, IN B is switched through. When only IN A is connected and IN B is not, OUT produces an inverted version of IN A when the gate is low, and a non-inverted version when high. When only IN B is connected and IN A patched with a dummy cable (a cable that is not connected to another module), IN B can be switched off by a gate signal. If nothing is patched to IN A, the VOLTAGE READER GATE output is normalized to this input. This module is available in 3U and 1U! CAUSE & EFFECT QUICK START GUIDE : CAUSE_EFFECT_QUICK_START .pdf Download PDF • 452KB prev Up next

tricay / tripple decay / 6 HP ⇣ Seamlessly trigger three versatile Decay Envelopes by patching a single trigger. 1/3 key features 3x Decay Trigger Multiplier LED indication Skiff friendly Wrong polarity protection ​ specs & downloads width: 6 HP depth: 28 mm power: 38 mA @ +12V / 15 mA @ -12V documentation videos description / manual When you connect a trigger signal to TRIG 1, it's distributed to all three Decay Envelopes. This connection is disrupted when another cable is plugged into TRIG 2 or TRIG 3, allowing for independent triggering of the envelopes if desired. ​ Adjust the decay length using the three potentiometers, spanning from quick and snappy to prolonged and release-like. This versatility suits a variety of sounds, including synth lines and percussions. The status of each Decay Envelope is conveniently displayed through an LED indicator. ​ Voltage is generated and accessible via OUT 1, OUT 2, and OUT 3 jacks, providing options for modulation and sound generation in your setup. ​ Furthermore, by inputting a trigger signal into TRIG 1 and configuring all decay settings fully counter-clockwise, Tricay can function as a Trigger Multiplier, expanding its utility and creative potential. prev Up next

delay / clean pt2399 delay / 2 HP ⇣ Delay is a very simple 2HP analogue vintage delay . It is based on the PT2399 chip, but doesn't have the glitchy artifacts on long delay times 1/3 key features Warm and vintage sounding delay 3 potentiometer Very easy to use, sweet spots on every turn ​ specs & downloads width: 2 HP depth: 60 mm power: 29 mA @ +12V / 4 mA @ -12V documentation videos description / manual The feedback effect is intentionally mild, making this delay exceptionally user-friendly. No worries about overwhelming feedback loops or distorted low-quality sounds when extending the delay time. With a LEVEL knob for output adjustment and no dry/wet mix control, the module keeps it simple. Set the delay time using the TIME knob. The FEEDBACK knob lets you introduce delay and raise the repetition frequency of the delay. prev Up next

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 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

phoebe / 4-channel afl mixer with aux send / 18 HP ⇣ PHOEBE stands out as a highly interactive 4-channel mixer that seamlessly integrates into any Eurorack configuration, offering a tactile experience that complements diverse setups. 1/3 key features 4 Channel Mixer 4 x Mute / Level / Aux Send 2 x Send/Return (per Channel and Selected) AFL (After Fade Listen) via Headphone Out Smooth Transitions with Slider Pots Performance-Orientated Mixing Wrong Polarity Protection ​ specs & downloads width: 18 HP depth: 30 mm power: 70 mA @ +12V / 50 mA @ -12V documentation videos description / manual PHOEBE has four channels. Each channel has a MUTE switch, a LEVEL control and a SEND knob in order to use external effects. Underneath these controls there is the MIX/AFL Fader which determines if the signal should be routed to the MIX or the HEADPHONE output jack. In the top „MIX“ position the channel´s audio is routed to the MIX out. In the bottom „AFL“ position it is routed to the HEADPHONE out. AFL stands for „After Fade Listen“ and enables you to listen to the channels audio before you add it to the MIX output. It is similar to PFL (Pre-Fade Listen), but the signal is taken after the LEVEL settings in order to have a good mix comparison on the headphones. Imagine you are playing a live set and want to take a sound from the mix in order to add a new one from the same VCO later on. Simply pull the fader slowly from MIX to AFL in order to take it smoothly from the MIX out. Then change the sound, edit sequences etc. and listen to the result on the headphones first. Add the mix output signal to the headphones with the little MIX trimmer potentiometer and verify if the new sounds fits the mix. Then just push the fader up into the MIX position and the transition is complete. The upper position of the slider always equals volume that is set with the LEVEL knob. So it´s save to bang it up for breaks and cuts during your performance. You may adjust the headphone volume with the VOLUME trimmer potentiometer. In addition to the SEND and RETURN effect routing per channel there is also a second SEND S and RETURN S routing which lets you send the signal of several selected channels (via jumper on the back) with one knob at once. Both SEND/RETURN ways are active also when the channel is in AFL mode and not being supplied to the mix. This way you can add the effect return of a channel to the mix even if the original sound is currently not playing. All channels have dedicated GAIN trimmer potentiometers on the front. prev Up next

GOOD BYE, MY DEAR FRIENDS! The modules below are no longer supported and will be removed from stores. While limited stocks might remain, restocking won't occur. Module details are available on modulargrid.net. modular grid discontinued krach aus strom triple tom knead gene chains Up

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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. 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. ​ 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

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-B (4HP PSU) 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

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