Maker
ADDAC System
Eurorack modular instrument maker
A Eurorack modular instrument maker represented in the ModularGrid manufacturer directory; its official site describes ADDAC System as a Eurorack modular manufacturer based in Lisbon, Portugal.
Models
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ADDAC508 Swell Physics
Portugal
The ADDAC508 Swell Physics is a Eurorack modulation source that simulates a small patch of open ocean, with four buoys floating on a wave surface generated by a Gerstner wave model. As the simulated water moves, each buoy rises and falls and reports its height to one of four CV outputs, producing slow, organic, fluid-like modulation. Controls over the wave parameters and the spacing of the buoys let the four outputs drift independently or move together.
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ADDAC207 Intuitive Quantizer
Portugal
The ADDAC207 Intuitive Quantizer is a four-voice Eurorack quantizer that snaps incoming control voltages to musical scales across a 10-octave range. It offers user-definable scales, several quantization modes, and a keyboard mode played from its buttons, and it can handle microtonal scales with more than 12 notes per octave alongside multiple temperaments. Tuning and up to 11 user presets are stored in non-volatile memory for recall.
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ADDAC701 VCO
Portugal
The ADDAC701 is a fully analog voltage-controlled oscillator for Eurorack that produces four simultaneous waveform outputs - sine, triangle, sawtooth, and rectangular (pulse) - along with a mix section for blending them. It tracks 1V per octave pitch and has a linear FM input with adjustable depth, while the rectangular wave offers voltage control over its pulse width. The current REV2 version uses a CEM3340-based core for pitch tracking that stays stable across seven octaves.
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ADDAC306 VC Transitions
Portugal
The ADDAC306 VC Transitions is a five-channel CV generator that moves all of its outputs smoothly between voltage states. Each channel has its own minimum, span, and direction controls, and a single common slider morphs all five outputs at once between their minimum and maximum values. A common CV input lets an LFO, envelope, or sequencer automate the transition, making the module useful for large, coordinated parameter shifts from a single gesture.
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ADDAC112 VC Looper & Granular Processor
Portugal
The ADDAC112 VC Looper & Granular Processor is a stereo Eurorack module that pairs a real-time recording looper with a granular processing engine. Recorded loops are stored in a list so any sample can be recalled at any time, and the granular engine reshapes the selected loop with buffer sizes up to five minutes, ranging from subtle stutters to extreme transformation of incoming audio. Separate dry, looper, and grain volume controls feed the stereo output, and the module ships with a detachable patch panel that can be placed away from the controls.
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ADDAC104 VC T-Networks
Portugal
The ADDAC104 VC T-Networks is a four-voice Eurorack module built around Twin-T network circuits of the kind used in many classic drum machines. Each voice has a frequency control with a CV input and attenuverter plus a gate-to-trigger converter, so almost any signal can trigger its percussive resonant tones, and the four voices are combined through a summing mix output with volume control. Because of the gate-to-trigger circuit, audio fed into a voice input can also be used to create heavily destructive filtering effects.
Sources
Categories
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Eurorack Modules
Modular synthesizer modules in the Eurorack format.
Representative model
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ADDAC701 VCO
Portugal
The ADDAC701 is a fully analog voltage-controlled oscillator for Eurorack that produces four simultaneous waveform outputs - sine, triangle, sawtooth, and rectangular (pulse) - along with a mix section for blending them. It tracks 1V per octave pitch and has a linear FM input with adjustable depth, while the rectangular wave offers voltage control over its pulse width. The current REV2 version uses a CEM3340-based core for pitch tracking that stays stable across seven octaves.