Dreadbox Hysteria BL

A black-panel analogue oscillator with voltage-controlled wave shaping, pitch quantisation and hard sync.

An oscillator that encourages movement

Hysteria BL is a voltage-controlled oscillator for a powered Eurorack system. Its wave-shaping functions let you explore the transition between timbres rather than treating the oscillator as a fixed waveform source. Apply control voltage to make that change part of a note, sequence or longer evolving patch.

Pitch with structure or freedom

The pitch quantiser provides a way to constrain pitch movement, useful when working with a sequencer or changing control voltages. Hard sync introduces another relationship between oscillators, allowing a second source to influence the waveform cycle. A dedicated pulse output provides a further signal option alongside the main wave-shaping path.

From modulation rates into the audio range

The specified frequency range runs from 16 Hz to 32 kHz. This makes Hysteria a flexible starting point for melodic voices, basses and more experimental oscillator interactions. Listen to how the quantiser, sync and waveform controls affect one another as part of the complete patch.

A compact voice building block

The black-panel BL version occupies 10 HP and requires a compatible powered Eurorack case. Add filtering, amplitude control and envelopes according to the kind of voice you want to build. It is a useful choice when one oscillator should offer several directions for timbre and pitch experimentation.