Mixer & Attenuation
available
Quad-Core Multimode FilterWhen we talk about the sound signature of synths, filters are probably one of the first topics appearing.On Atlas, we dive into the sound of the 80s Japanese classics with four gain-cell-based multimode filters that keep the silky and creamy sound of those legendary machines along with some technical improvements like a better noise floor, an accurate resonance compensation, and a daisy-chain input implementation that makes some patching techniques like parallel filtering a lot easier.The filter cores have been carefully designed and tweaked to be pristine without losing character. With three filter modes available per channel, 4p-LP, 2p-HP, and 4p-BP, Atlas can cover almost any filtering technique, from superb filter sweeps to multi-slope resonant patches.Thanks to its precise resonance circuit, each core creates a clean sine wave when self-oscillating. Excite the inputs with fast trigger or gate signals, and you will get TR-like drum sounds, from deep kickdrums to nice toms and congas.In addition, the module counts with a CV-controlled Interpolating Scanner circuit that morphs softly between each filter output, creating new shapes and timbres as it fades between the channels.Features:• Four analog multimode, gain-cell-based VCF circuits.• Three modes per channel: 4p-LP, 2p-HP, and 4p-BP.• Resonance compensation circuit.• Daisy-chained audio and Freq inputs.• Secondary CV input, selectable between Frequency or Resonance.• CV-controlled Interpolating Scanner circuit.• Input Impedance: 100kΩ• Output Impedance: 1kΩ• CV Inputs Range: 10Vp-p• Frequency Range: ∼ 20Hz to 20KHzDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
High-Class Linear VCA & MixerIf you have been already into the Eurorack world for a while, I’m sure you have heard the sentence: “you never have enough VCAs” more than once.As an electronic musician, this has always been present. I can’t count how many times I needed an extra VCA with all of them already being used.I wanted to create an all-around, good-sounding, and handy VCA, small enough to fit on little systems but with a good amount of channels and functionality. And this is what Ceres is.Its core, the 3360, has been used for years in dozens of devices with remarkable performance. Sum it to a carefully designed 4-layer PCB layout, and we get a super quiet VCA in terms of noise and CV bleeding.The combination of daisy-chained inputs and mixed outputs achieves a vast range of possibilities. Several CV signals can modulate a unique source with every output mixed back at the final stage to create new waveforms and open the door to experimentation.Features:• Six channels• Low noise analog VCA circuits• Precise Linear response• Quiet signal path• Daisy-chained audio inputs• Mixing stage on channel 6• Unity gain CV level: 5V• Input Impedance: 100kΩ• Output Impedance 1kΩDIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Hive is a four-channel stereo mixer offering per-channel CV-controlled panning with the trademark Vostok twists that turn a straightforward mixer into a versatile toolbox for any rack. Each channel includes a boost stage to match levels between modules and to accommodate pro-line devices like desktop synths or drum machines, so signals sit correctly in the mix without extra attenuation or padding.Panning uses a custom law with −1.5 dB attenuation at center, delivering smooth, musically balanced transitions whether adjusted by hand or driven by CV. Rear-panel chaining connectors let multiple Hive units act as channel expanders or submix stages, enabling larger mixes and flexible routing topologies.Housed in just 10 HP, Hive combines compact footprint with practical features for stereo mangling, FX sub-mixing, end-of-line mixing and more, making it a handy utility for both performance and studio patching.Features:• Four-channel stereo mixer with per-channel CV-controlled panning.• Per-channel boost stage for level matching and pro-line device compatibility (desktop synths, drum machines).• Custom panning law with −1.5 dB center attenuation for smooth, musical balance transitions.• Manual or CV control of pan for dynamic stereo movement.• Rear-panel chaining connectors to use additional Hive modules as channel expanders or submixes.• Compact 10 HP footprint that saves space in crowded cases.• Clean summing and routing suited to stereo mangling, FX sub-mixing, or end-of-line mixing.• Robust build and layout focused on fast, hands-on workflow in live and studio setups.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
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Path is a compact 4-channel interpolating router, developed with Ben Wilson (DivKid), and inspired by our previous module, Trace. While Trace blended signals, Path flips the concept—routing one input to four outputs with smooth, slope-based transitions.Built around the same DC-coupled interpolating core as Trace, Path handles audio and CV signals effortlessly. Its normalized fixed voltage input also transforms it into a powerful modulation source—no patching required.Designed for flexibility and performance, Path brings fluid, organic movement and creative control to any modular setup in a streamlined footprint.Features:• Four channels• DC-Coupled outputs for use with both audio and CV signals.• Custom fading slope designed to improve the response on middle positions.• CV-controlled routing with onboard attenuation and inversion of the modulation signal.• Fixed voltage normalled at the input.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
sold out at the moment
Trace is a four-channel Interpolating Scanner created in collaboration with Ben Wilson “DivKid”.Introduced by Jurgen Haible in 1994 and later improved by Donald Tillman in 1999, the Interpolating Scanning circuit is a hybrid between a signal selector and a crossfader.The circuit morphs between the inputs, fading from one to the next as the voltage control rises. The Trace version of this classic circuit comes with a custom, fine-tuned slope response that prioritizes a smooth transition between the inputs, providing interesting middle points between the channels and improving its behavior when controlled by external CV signals.Following Ben’s unique vision and module design, Trace unifies the compact form that characterizes his modules with our hardware and aesthetics.From waveform morphing and CV-controlled transitions, to audio-rate scanning. Trace brings a new horizon of patching possibilities to any system.Features:• Four channels• DC-Coupled inputs for use with both audio and CV signals.• Custom fading slope designed to improve the response on middle positions.• CV-controlled scanning with onboard attenuation and inversion of the modulation signal.• Low noise analog VCA circuits.DIY-Kit-Type:SMD-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. All SMD parts are pre-soldered, only trough-hole parts to solder. For build guide, more info, videos etc. please check the buttons below.
available
The Attenumixer is a 4 HP 3 channel passive attenuator and mixer module.Each channel is normalled to the sum(VI) so it can be used as a 2 channel mixer and 1 channel attenuator, or a 3 channel mixer, or as 3 separate attenuators. Normalization to the sum is broken by inserting a jack into the outs of channels I-III. The Attenumixer works well with both cv and audio, although the potentiometers have a linear response. Since the module is passive there will be signal loss at the sum out.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
available
This is the panel PCB version of this kit.The Attenumixer is a 4 HP 3 channel passive attenuator and mixer module.Each channel is normalled to the sum(VI) so it can be used as a 2 channel mixer and 1 channel attenuator, or a 3 channel mixer, or as 3 separate attenuators. Normalization to the sum is broken by inserting a jack into the outs of channels I-III. The Attenumixer works well with both cv and audio, although the potentiometers have a linear response. Since the module is passive there will be signal loss at the sum out.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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This is the panel PCB version of this kit.Dual summed voltage controlled amplifier and mixer in 2 HP. It is a DC coupled OTA (LM13700) Dual Linear VCA based on the same fabled design of the VnIcursal VCA. The 2 VCAs are summed together so it can be used as a voltage controlled mixer at the “SUM OUT” or all 3 outs can be used separately and simultaneously. 5 volts into the CV in will provide unity gain, anything above 5 volts can clip the input.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
available
Dual summed mute Attenuator, Offset Generator, Mixer, and Mute in 2HPThe newest 666 version (2021) can be powered and will provide Offset of 0-5V with nothing plugged into the “IN” for each channel controlled by each respective Potentiometer. The “Sum Out” will also be able to send out 0-10v~ volts depending on the setting of each Potentiometer. Both channels are normalled to the sum, so inserting a signal into an “IN” will remove it from the “Sum Out. There will be signal loss at the sum out, because the module is passive. Great for cv or audio although the module ships with linear pots.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
only 2 left
This is the panel PCB version of this kit.Dual summed mute Attenuator, Offset Generator, Mixer, and Mute in 2HPThe newest 666 version (2021) can be powered and will provide Offset of 0-5V with nothing plugged into the “IN” for each channel controlled by each respective Potentiometer. The “Sum Out” will also be able to send out 0-10v~ volts depending on the setting of each Potentiometer. Both channels are normalled to the sum, so inserting a signal into an “IN” will remove it from the “Sum Out. There will be signal loss at the sum out, because the module is passive. Great for cv or audio although the module ships with linear pots.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.
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User configurable 3 Channel Unity Gain Audio or Control Voltage Mixer in 2HPThe newly revised MiniMix is now all through hole and aimed more to the beginner solderer. There is also a trimmer on the PCB to increase the master gain up to 2 or more for all 3 channels.DIY-Kit-Type:THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
only 2 left
This is the panel PCB version of this kit.User configurable 3 Channel Unity Gain Audio or Control Voltage Mixer in 2 HPThe newly revised MiniMix is now all through hole and aimed more to the beginner solderer. There is also a trimmer on the PCB to increase the master gain up to 2 or more for all 3 channels.DIY-Kit-Type:Panel/PCB Kit. This is a do-it-yourself panel/PCB kit, no parts are supplied, you will need to source them yourself.