Dreadbox Ataxia

Dual modulator: function generator, LFO, and ADSR per channel in 10 HP

10 HP Eurorack module

Ataxia is Dreadbox's dual-channel modulation Swiss army knife. Each channel can be set independently to one of three behaviours — Modulator (a Rise / Hold / Fall function generator), LFO (delay-rise-fall continuous oscillator), or ADSR envelope — using a global mode pair. Four shared sliders (A, D, S, R) reshape themselves to fit the active mode (e.g. RISE / FALL / HOLD / CURVE in Normal mode, ATTACK / DECAY / SUSTAIN / RELEASE in ADSR mode), and the Channel button decides which channel those sliders are currently editing. CV inputs cover Trig (per channel), Time (per channel — sweeps all time parameters at once) and Level (per channel — velocity-style scaling). Time response runs from 1 ms to 20 s per stage, making the same module a snappy attack envelope, a swelling 20-second drone fade, or a slow LFO depending on settings.

Features

• 10 HP, 35 mm deep dual modulator
• Two independent channels — each can run in Modulator, LFO, or ADSR mode
• Three-stage Rise–Hold–Fall function generator with variable curve
• Delay-Rise-Fall LFO with phase reset on trigger
• Standard ADSR envelope with selectable Exponential / Linear / Logarithmic curve
• Time response from ~1 ms per stage up to 20 s
• Bipolar TIME CV input per channel — stretches/compresses all time parameters
• 0–10 V LEVEL CV per channel — works as velocity for ADSR mode
• Independent TRIG, TIME, CV, and OUT per channel
• Shared 4-slider interface, channel-switched via Channel button
• Channel + Mode hold combo toggles Normal vs ADSR globally

Controls & Jacks (16)

• Trig 1
• Trig 2
• Time 1
• Time 2
• Channel
• Mode
• CV 1
• CV 2
• Slider A
• Slider D
• Slider S
• Slider R
• Out 1
• Level 1
• Out 2
• Level 2

How-To Guides

• Twin ADSR Voice
• Mixed Modulator + LFO
• 20-Second Drone Fade
• Velocity-Sensitive Envelope
• Evolving Envelope Time

Explore the interactive Ataxia panel on BleepDex — tap any control to learn what it does.