
annulus
Six worlds. One instrument.
Annulus is a polyphonic resonator and effects engine built for sound designers who think in texture, not presets. At its heart is a faithful implementation of the physical modeling engine behind Mutable Instruments' Rings — one of the most celebrated modules in the history of Eurorack — paired with a full effects chain and a visual interface that breathes with the sound.
Six modes. Six physical models. Six complete sonic identities.
The engine
Annulus routes your signal through four linked processors:
Rings: a MIDI-driven polyphonic resonator based on Mutable Instruments' Rings, running six distinct physical modeling algorithms. Four voices spread across the stereo field with velocity and position randomization for organic variation on every hit.
Spiral: a stereo tape delay with tempo sync, ping-pong routing, wobble modulation, and saturated feedback.
Velvet: an algorithmic reverb with shimmer, diffusion, ducking, and a four-second tail.
Distortion: twelve waveshaping models at 2× oversampling, from soft tube warmth to asymmetric fuzz.
Four macro knobs: Morphe, Aigle, Nothros, Topos. Reach across the entire chain simultaneously. One gesture shapes the resonator, the delay, the reverb, and the drive at once. Topos also integrates into the visualizer's rotation, tying the image to the physics of the sound.

Morphosis

Sympatheia

Bathmos

Anomalia

Donisis

Antron












