Effects stereo compressor / feedforward stereo compressor / 6 HP ⇣ STEREO COMPRESSOR is a classic analog feedforward compressor, which takes its sidechain split directly from the input signal. It is based on the THAT4305 Analog Engine® single-chip with integrated Blackmer® VCA. 1/3 key features Analog Compressor Stereo Signal Path THRESHOLD, RATIO and GAIN ON/OFF Switch for Signal Comparison Up to +20dB Make-Up Gain STEREO SUM Compatible Skiff friendly Wrong polarity protection specs & downloads width: 6 HP depth: 28 mm power: 35 mA @ +12V / 26 mA @ -12V documentation videos description / manual STEREO COMPRESSOR has two independent signal paths in order to process stereo signals. The left input is normalized to the right, if you want to compress mono signals instead. The module has three controls and a switch: THRESHOLD determins the level at which the compressor starts working. This can be set from -40dB to 20dB. RATIO sets how much the compressor turns down the volume when the threshold is reached (INF:1 to 1:1). GAIN regulates the amount of make-up gain (-20dB to +20dB) that is applied to the signal. Additionally there is an ON/OFF switch that makes it easy to compare the dry and compressed audio signal. Please note that if you turn THRESHOLD counter-clock wise to the left, you reduce the threshold from 20dB (fully cw) to -40dB (fully ccw). Hence the compressor starts working earlier. If you turn RATIO counter-clock wise to the left you increase the amount of compression from 1:1 (fully cw, no compression) to INF:1 (fully ccw, infinite compression). So turning the knobs down corresponds to compressing the signal. The pictures below show the knobs in a neutral position where no compression is applied. STEREO COMPRESSOR has a similar design as the STEREO SUM CHANNEL modules. If you want to add some compression to your mix STEREO COMPRESSOR is a perfect addition to your STEREO SUM Mixer. prev Up next

Oscillator pyxis / adaption of mutable instruments "plaits" / 8 HP ⇣ PYXIS condenses all of Plaits' functionalities into a more compact hp footprint, while further pushing the principle of "simplicity first" to unparalleled heights. 1/3 key features Please check out the original module by Émilie Gillet which is an all time Eurorack classic already Illuminated Pyxis Logo Wrong Polarity Protection specs & downloads width: 8 HP depth: 28 mm power: 50 mA @ +12V / 5 mA @ -12V documentation videos description / manual In order to easily tweak and change the sounds there are four main potentiometers that will change Timbre, Harmonics, Morph and Variant, which is any possible mixture of OUT and AUX. Freq has been put onto a small trimmer potentiometer to avoid any accidental change in pitch. On the bottom of the panel you will find all necessary jacks to control Pyxis via CV. Timbre, Morph and Freq have dedicated attenuverters to adjust the incoming CV signals. Yeah…but…where are the LEDs? Instead of always directly jumping to chord mode and watching the LEDs change, isn‘t it much better to listen and trust your ears to choose the right sound? Tweak the four potentiometers, change the program with the two buttons (Sound and Percussion Mode) and listen to the wide range of sounds Pyxis is able to generate. Let yourself be surprised what is hidden behind the programs you would usually not choose following the LED indicators. Released under cc-by-sa-3.0 license: Pichenettes Mutable Instruments prev Up next

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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

Oscillator kau'i / dual techno oscillator / 8 HP ⇣ KAU'I is a basic two oscillator sound generator that was designed to create Techno basses and leads. 1/3 key features Dual Analog Oscillator Manual Wave-shape Controls Independent Level Control Mix Output Noise Generator Wrong Polarity Protection specs & downloads width: 8 HP depth: 28 mm power: 55 mA @ +12V / 29 mA @ -12V documentation videos description / manual Oscillators A and B share identical designs but cover distinct pitch ranges. Using the A and B knobs located atop the module, you can seamlessly transition the waveform of each oscillator from a square-wave to a triangle wave. The SHAPE2 knobs then take this waveform and blend it with an independent sine-wave signal for each oscillator. The LVL knobs adjust the volume of each sound generator, while rotating the NOISE knob introduces white noise to oscillator A on the MIX output. Both oscillators feature a pitch control input accompanied by an attenuator. This input follows a linear voltage-to-frequency response (Hz/Oct), making it ideal for generating unique Techno sequences at lower frequencies. At the module's base, you'll discover a MIX OUT combining the outputs of both oscillators, alongside individual outputs for each oscillator. prev Up next

Modulation & Random lfor / digital lfo and stepped random generator / 4 HP ⇣ Combining a digital Low Frequency Oscillator with a Stepped Random Generator, this module offers three distinct voltage outputs in the form of Pulse, Triangle, and Random waveforms. The LFO functions as both a voltage and trigger source, while the Stepped Random feature can be seamlessly looped for continuous operation. LFOR_BACK.jpg 1/3 key features LFO with 3 Waveforms Triangle, Pulse and Stepped Random LFO Rate potentiometer Voltage Control over Rate LFO Reset Stepped Random lockable to 16 or 8 steps Random Voltages normalized to LFO Rate Pulse can act as Rythm Generator Wrong polarity protection Skiff friendly specs & downloads width: 4 HP depth: 28 mm power: 25 mA @ +12V / 20 mA @ -12V documentation videos description / manual The LFO provides three voltages in shape of Pulse, Triangle and Random. It can be used as a voltage and trigger source. The frequency of the LFO can be changed using the Rate potentiometer on top. The LED is indicating the current speed. The Rate of the LFO may be voltage controlled using the Rate CV jack. The small potentiometer acts as an attenuator. Additionally the LFO cycle can be reset via a trigger signal at the Reset jack. The Triangle output provides a standard triangle waveform. Random supplies a randomly stepped voltage at LFO rate. This random voltage is normalized to the LFO CV in creating some interesting random voltages on the other outputs. This connection can be interrupted by inserting a patch cable to Rate CV. Using the Random Lock Switch it is possible to lock the random steps to identical patterns of 16 (mid position) or 8 (down position) steps. If the switch is positioned upwards it is completely random. Patching a voltage to RNDM CV will give you CV control of the Random Lock (switch must be in mid position). Any voltage above 3 volts will produce random steps, any voltage below 4 volts will lock the random out to a pattern of 8 steps. Pulse out is not a typical pulse wave you would expect from an LFO. It is rather a rythmical trigger producing one long pulse at the start of the cycle and a short pulse at the end. This way and by the normalized random voltage (if the CV attenuator is turned clockwise), you will have a wide range of random or locked pulses to trigger VCAs or sequencers. A simple AVR-programmer is neccessary to complete the build. Nevertheless it is a very easy build with only 37 parts in total. prev Up next

Utilities & PSU cv pan / stereo panning module / 6 HP ⇣ CV PAN is a traditional CV panning module that is used to distribute a signal manually or automatically to both stereo channels. 1/3 key features Stereo Pan CV Input with Attenuator LED Indication Stereo Input & Output Skiff friendly Wrong polarity protection specs & downloads width: 6 HP depth: 30 mm power: 35 mA @ +12V / 21 mA @ -12V documentation videos description / manual CV PAN is a straightforward CV panning module featuring stereo input and output capabilities. When a stereo signal is connected, you can adjust the PAN knob to distribute the signal evenly to both the L and R outputs when in the center position, or shift emphasis to either the left or right channel by turning the knob accordingly. If a mono signal is used, the left input is automatically routed to the right channel, effectively converting the mono signal into a stereo output. To enable automated pan control, apply CV to the CV input. A complete pan change can be achieved by applying +5V. Adjust the CV input attenuator to the left to reduce the CV level for smaller panning movements. The output sockets deliver the processed stereo signal, ready for routing to other modules. CV PAN QUICK START GUIDE: CV_PAN_QUICK_START .pdf Download PDF • 390KB prev Up next

Mixer & VCA stm / 3-channel stereo mixer / 4 HP ⇣ STM proves to be an incredibly convenient and user-friendly 3-channel stereo mixer featuring three intuitive volume potentiometers. Its straightforward design allows for easy manipulation, while onboard trimmers enable seamless gain adjustments per channel. This versatile mixer caters to both line and Eurorack levels, all encapsulated within a compact form factor for added space efficiency. 1/3 key features Analog Mixer 3 Stereo Channels +20 dB Gain per Channel LED Indication Skiff friendly Wrong polarity protection specs & downloads width: 4 HP depth: 30 mm power: 24 mA @ +12V / 15 mA @ -12V documentation videos description / manual STM is a simple but very useful 3-channel stereo 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. Each of the left inputs is normalized to the corresponding right channel, provided nothing is patched there. prev Up next

MIXBENCH is a true 0HP Eurorack mixer with USB power, three stereo channels, TIlt-EQ per channel and a high-pass filter on the main output.. Its compact design fits perfectly between modular cabinets or desktop synthesizers, making it an invaluable addition to your performance-oriented live setup. mixbench / usb-powered dj-style filter / 0 HP - DISCONTINUED! ⇣ MIXBENCH is a true 0HP Eurorack mixer with USB power, three stereo channels, TIlt-EQ per channel and a high-pass filter on the main output.. Its compact design fits perfectly between modular cabinets or desktop synthesizers, making it an invaluable addition to your performance-oriented live setup. key features 3-Channel Mixer Tilt-EQ per Channel High-Pass Filter Fader for Channel A & B documents Mute Switches Gain +20dB USB-Power description / manual On top of the panel there are three stereo inputs A, B and ST and a stereo output OUT. All three inputs have a dedicated Volume potentiometer. The inputs A and B can be mixed with the FADE knob on the very bottom. If you turn the knob fully counter-clockwise only channel A will be forwarded to the output. Consequently if you turn the knob fully clockwise only channel B will be audible. At 12 o´clock you can hear an even mix between both inputs A and B. The ST input is not affected by the FADE knob and will be directly routed to the output if you turn the VOLUME ST pot clockwise. Channels A and B have a MUTE switch in order to instantly switch off each channel´s signal. There is no mute switch for channel ST. EQ A and EQ B will change the frequencies of each channel A and B. It will boost high frequencies and cut low frequencies turning the knob clockwise and boost low frequencies and cut high frequencies turning it counter-clockwise. There is no EQ for channel ST. All three channels are routed through a HIGH PASS FILTER. The frequency of the filter can be adjusted with the HP FILTER knob. The frequency range and resonance of the filter can be set using trimmers on the bottom of the module. MIXBENCH is a space saving DJ-style mixer that was mainly designed to mix two Eurorack cases in a live situation. You can of course also use it to mix your drum-machines or synths. MIXBENCH 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

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

Modulation & Random clanches / branches with internal cv clock / 6 HP ⇣ CLANCHES is an 6 HP clock source and dual random gate. It is a modification of Émilie Gillet's module Branches. 1/3 key features Internal Clock Source Dual Random Gate CV Clock HOLD Function Probability CV Clock normalled to both Gates 3x LED Two separate Gate Inputs Probabilty CV Skiff friendly specs & downloads width: 6 HP depth: 28 mm power: 60 mA @ +12V / 35 mA @ -12V documentation videos description / manual The internal clock indicated by the LED located in the centre is normalled to both inputs of the random gate. If there is an external trigger patched to one of the IN jacks, this connection will be interrupted. The gate takes a trigger or gate as an input and routes it to either one of its two outputs A and B according to a random coin toss. You can manually adjust the internal clock rate. A Switch changes the range from slow over moderate to very fast.The CV input gives you the opportunity to use control voltages in order to adjust the clock speed. Any signal above 3V will vary the rate. If the signal drops below 3V the clock generator is forced to hold. This way you can generate very interesting rhythms by just patching a random signal or LFO into the Clock CV. The internal clock is furthermore supplied via the OUT jack. The two manual controls P1 and P2 and their corresponding CV inputs change the probability of a signal to be routed to one of its outputs. In extreme settings, the outcome is no longer random causing the module to behave like a voltage controlled switch. The two LEDs on top indicate which output of each channel has been selected to route the signal. In contrast to the original Branches module the two toggle switches simple change the behaviour if the P1 or P2 is set fully clock- or fully counter clockwise. If you hold the button for 2 seconds once the signal will be routed to A and B alternately with each incoming trigger. In normal mode the will just be routed to A (CW) or B (CCW). prev Up next

Utilities & PSU sl / fader, attenuator, offset, mixer, voltage source, polarizer / 3 HP ⇣ SL is a chainable modular fader that consolidates numerous functions within a 3HP module. Link multiple SL modules effortlessly using a jumper on the rear. 1/3 key features Attenuate Audio Sources or CVs Add offsets to CVs or change their polarity Attenuate/Invert CVs sent to modules that don´t have attenuverters Control Parameters of other Modules Build a Multi-Channel Mixer by Daisy-Chaining Simple Connection of several SL Modules with Jumpers Alter Module Orientation with Flip-Panel Wrong polarity protection specs & downloads width: 3 HP depth: 28 mm power: 15 mA @ +12V / 15 mA @ -12V documentation videos description / manual SL is a Bi- or Uni-Polar Attenuator and Voltage Source with a Sl ide Potentiometer. Each SL can also be a mixer channel when several SL s are daisy-chained. Any audio or voltage source may be attenuated using the sl ide potentiometer. You can change the behaviour from uni-polar to bi-polar via switch. If there is no input patched SL acts as a manual voltage source. Voltages can be set to +5V or +10V via switch. This mode also allows you to change the behaviour from uni-polar to bi-polar. Two or more SL modules may be daisy-chained with simple 2.54mm jumpers on the back. This way you can use them as mixer channels or offset generators.When SL 1’s output is left unconnected, the signal on SL 2’s output is the sum of SL 1 and 2. When output 1 and 2 are left unconnected, the signal on SL 3’s output is the sum of channels 1, 2 and 3 and so on.Leave SL 1’s input and output unconnected. Patch a CV source to SL 2’s input. SL 2’s output will be an offset copy of the input signal. Use SL 1’s sl ider to adjust the offset and use SL 2’s sl ider to adjust the amplitude and polarity of the CV. If you patch an input in SL 1´s input and take the output from SL 2, the signal will first be attenuated and then offset. You can choose to have the jacks on top or bottom of the module by flipping the panel and changing the sl ide pot´s orientation via two jumpers on the back. prev Up next