UVI Rumble

Three parallel engines. One unified sound.

A multiband bass synthesizer plugin with three frequency-based engines, each with discrete oscillators, wave-shapers and effects. Designed for bass and beyond.

• Standalone multiband bass synth VSTi with Body, Character, and Air engines
• 9 oscillator models, 6 filter circuits, 10 fx chains, 33 mod sources
• Designed for the demands of modern electronic bass, and beyond

Three parallel engines. One unified sound.
Rumble was designed to meet the needs of contemporary bass: the weight, punch, articulation, and movement that bass-led music demands. To deliver that, Rumble’s architecture treats each frequency band as a full synthesizer engine. Body, Character, and Air each carry their own oscillator, wave-shaper, and effects, then converge through a shared filter stage, multiband compressor, and master EQ, to produce a powerful, unified voice.

The result is the first multiband synthesizer, built for bass from the ground-up. Layered sub-, mid-, and high-frequency content stays structurally separate, which means low-end weight, midrange definition, and top-end air can each be sculpted on their own terms.

The architecture itself goes deeper: vocal-formant synthesis, drone textures, percussive transients, cinematic motion, vintage analog warmth, all live within the same per-band approach. 

The factory library is built by sound designers and genre-specialized producers, with a sprawling range of presets covering everything from 808s and wobbles to drones, motion sequences, and abstract textures.

Per-band modules
Three bands. Three synth engines. Each band carries an independent oscillator, wave-shaper with cross-band AM injection, and an effect slot, chosen and tuned per band, then merged through a shared filter and master section. The engine was designed against the weight, punch, articulation, and motion that bass-led production demands, unlocking precision and creativity that other architectures simply can’t reach.

Bass and beyond
A factory library shaped by working sound designers and genre-specialized artists. Built to demonstrate the engine's full range, from the genres that called it into being to the territory it opens up.

Rumble ships with an extensive factory library organized by sonic character:

• 808 for low-end fundamentals and percussive sub work
• Growl for aggressive bass voices
• Wobble for modulated and rhythmic basses
• Dirty for distorted and gritty character
• Sharp for cutting, articulated leads
• Drone for sustained evolving textures
• Cyber for digital, futuristic sounds
• Motion for rhythmic moving patterns
• Reese for aggressive sustained bass
• Vintage for retro analog warmth

Save your own work into the User category, and tag your favorites.

Every sound in Rumble was crafted across all three bands. Sub anchored in Body, grit and movement shaped in Character, the transient snap in Air. Every band does its job without fighting for space. Bands drive each other, one frequency breathing against the next, for movement no single-band synth can produce. Immense, riveting bass voices, form-fitted to their sonic environments in a way only Rumble can deliver.