Stereo Modules
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The Threetom Modular Doppio is a compact stereo amplifier, drive, and soft limiter module. Doppio helps complex and dynamic stereo sounds to find their place in a modular synthesizer context, where signals are hot, and headroom is extremely limited. Doppio does this by implementing a compact, yet flexible, soft-knee limiter. The limiter is specifically designed for eurorack levels and avoids the need for unnecessary make-up gain, resulting in a lower noise floor.Doppio offers three different gain settings (x1, x5, x21), and three different ratios (linear, drive, and limit). In addition to this Doppio has gain and volume knobs for more precise control. Different combinations of these settings cater to applications like saturating complex stereo signals without turning them into mush, end-of-chain limiting, and boosting line level signals to eurorack level, while still retaining enough oomph to also saturate them nicely. Finding the right settings is made easy by DOPPIO’s unique coffee-bean-shaped indicator lights.Even though Doppio’s architecture is stereo, that doesn’t mean it has no uses on mono signals: Either process two mono signals with identical settings, or chain the two channels to form a two-stage high-gain mono drive. Finally, it’s important to note that Doppio is DC-coupled and can also be used to process CV signals.In summary: Doppio is to your signals what a double espresso is to you – it makes you bigger and bolder – and you know you’re hooked when the withdrawal symptoms kick in.Features:• Three different maximum levels of gain: x1 (0dB), x5 (+14dB) and x21 (+26dB)• Three different soft-clipping modes: Drive mode, Off / linear mode and Limit mode• Caffeine knob for fine control over the gain applied to the inputs• Volume control for post-gain attenuation• Coffee-bean-shaped indicator lights make finding the desired settings easy• Reverse power protection• 4-layer PCB design with completely separate of audio supply rails and groundDIY-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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Ar Merc’het Brao combines a pair of resonant −12 dB filters with two overdrive stages in a compact module; its Breton name translates as "The pretty girls." Configurable for stereo or dual-mono operation and crafted with guitarists in mind, each filter features a switchable mode (Low-Pass or High-Pass) and dedicated CV inputs for voltage control of the cutoff. Global cutoff and resonance controls shape both channels together while the overdrives add harmonic grit and saturation, yielding a versatile tone-shaping device that sits comfortably between modular synthesis and guitar-style processing.Features:• 2 X Resonant 12 dB slope Filter (High Pass/Low Pass)• 2 X Classic Overdrives• Filter Cutoff CV inputs• Global controls for Cutoff and Resonance• Stereo and double mono use• Modular and Guitar friendlyDIY-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
Distresañ is a musical Baxandall shelving EQ engineered for smooth, natural tonal shaping. Its bass and treble shelving controls let you gently boost or cut low and high bands, while a fixed mid control at 1 kHz lets you add or remove body without resorting to narrow, surgical boosts.Designed for broad tonal balance rather than corrective notching, Distresañ imparts hi-fi–style clarity and warmth with minimal artifacts, making it ideal for shaping sounds in mixing, mastering, and live reinforcement where a transparent, musical response is required.Features:• Baxandall shelving topology for smooth, musical bass and treble shaping.• Fixed 1 kHz mid control for adding or removing presence and body.• Designed for tonal balance and overall sound sculpting, not narrow corrective EQ.• Hi-fi–style response: natural-sounding adjustments with minimal artifacts or distortion.• Suitable for mixing, mastering, live sound, and general tone shaping.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
Sonveskan is a three-channel mixer built from discrete components and germanium transistors, engineered to deliver gritty, analogue warmth and aggressive harmonic colour. Each channel features two serial gain stages (a front-panel drive control plus a PCB trim), voltage-controllable feedback with a dedicated feedback pot and CV input, a mute switch and a direct output. The main channel adds a two-band equaliser and an additional gain stage with its own trim for extra edge and saturation.Patching multiple strips together encourages wild feedback, multi-stage distortion and experimental textures, making Sonveskañ a compact but powerful tool.Features:• Three identical channel strips with dual serial gain stages.• Voltage-controlled feedback per channel with CV input and feedback intensity control.• Mute switches and direct outputs on each channel for flexible routing.• Main channel two-band EQ plus extra gain stage for added grit.• 2017 model fitted with larger coupling capacitors for improved bass response.• Built around germanium transistors and discrete circuitry for vintage, lo-fi character.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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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.