Dreadbox Utopia
Four attenuinverters, mixer, LFO, and Pulserizer in one
10 HP Eurorack module
The Dreadbox Utopia is a compact Eurorack utility module combining four attenuinverters, a four-channel mixer, a Pulserizer (compressed VCA-style processor), an offset generator, and a square-wave LFO. It is designed to be a multi-purpose signal manipulation tool with hidden functions including a splitter and square wave LFO, making it a versatile workhorse for shaping, mixing, and modulating signals in a modular system.
Features
- Four attenuinverters with individual inputs, amount knobs, and outputs
- Four-channel mixer with inputs normalised to attenuinverter outputs
- Three identical mixer sections
- Pulserizer — a compressed VCA-style processor with input normalised to mixer output
- Pulserizer output sends +/-5V
- Offset generator with knob and output sending +/-10V, normalised to mixer unless dummy cable inserted
- LFO with triangle output sending +/-5V, normalised to mixer unless dummy cable inserted
- LFO CV input accepting +/-5V for rate modulation
- Hidden splitter function
- Hidden square wave LFO function
- Dummy cable technique to isolate LFO or Offset from mixer routing
- Attenuinverters support both attenuation and inversion of signals
Controls & Jacks (26)
- Pulserizer Input — Pulserizer input, normalised to mixer output
- Pulserizer Output — Pulserizer output, sends +/-5V
- Attenuinverter 2 Input — Input for attenuinverter channel 2
- Mixer Output — Mixed audio output
- Mixer Input A — Mixer input A, normalised to attenuinverter 1 output
- Attenuinverter 3 Output — Output from attenuinverter channel 3
- Mixer Input D — Mixer input D, normalised to attenuinverter 4 output
- Attenuinverter 1 Input — Input for attenuinverter channel 1
- Attenuinverter 1 Output — Output from attenuinverter channel 1
- Attenuinverter 4 Output — Output from attenuinverter channel 4
- Offset CV Input — CV input for offset control, accepts +/-5V
- Attenuinverter 3 Input — Input for attenuinverter channel 3
- Mixer Input B — Mixer input B, normalised to attenuinverter 2 output
- Attenuinverter 2 Output — Output from attenuinverter channel 2
- Offset Output — Offset output, sends +/-10V unless something is patched to Offset CV Input
- Attenuinverter 3 Amount — Sets the amount of attenuinverter channel 3
- Attenuinverter 4 Input — Input for attenuinverter channel 4
- LFO CV Input — LFO CV input, accepts +/-5V
- Mixer Input C — Mixer input C, normalised to attenuinverter 3 output
- Attenuinverter 4 Amount — Sets the amount of attenuinverter channel 4
- Attenuinverter 2 Amount — Sets the amount of attenuinverter channel 2
- Attenuinverter 1 Amount — Sets the amount of attenuinverter channel 1
- Offset Amount — Sets the offset of the Pulserizer
- LFO Triangle Output — LFO triangle wave output, sends +/-5V unless something is patched to LFO CV Input
- LFO Rate — Sets the LFO rate
- CV/AUDIO
How-To Guides
- Basic Signal Attenuation
- CV Signal Inversion
- Four-Channel Signal Mixer
- Isolated LFO Modulation
- Tempo-Synced or Voltage-Controlled LFO
- DC Offset Voltage Source
- Pulserizer as Compressed VCA
- Full Normalised Signal Chain
- Signal Splitter / Multiple
- Generative Modulation Blender
Explore the interactive Utopia panel on BleepDex — tap any control to learn what it does.
