Rubigo Audio

Vintage keyboard sound, measured.

Rubigo RB3 console view: the full dual-manual tonewheel organ in walnut

Rubigo RB3

€28

A vintage tonewheel organ modeled after a B3, measured from real hardware, with its own rotary speaker and tube amp chain.

Includes Rubigo Rotary

Free on Linux. 30-day full trial on Windows and macOS.

Rubigo Rotary: the rotary cabinet with its speed lever and controls

Rubigo Rotary

€14

A rotary speaker for any keyboard: organ, electric piano or synth. Two rotors, microphones, amp and drive, with MIDI speed control.

Included with Rubigo RB3

Free on Linux. 30-day full trial on Windows and macOS.

Plugins modeled from real hardware, with native CLAP, VST3 and first-class Linux support.

Free forever on Linux. 30-day full trial on Windows and macOS.

How we build them

Model the machine, not a recording of it.

Rubigo plugins aren't sample libraries. They compute the physical parts of the original instrument as you play: the tonewheels, the spinning horn and drum, the tubes and transformers. Every model is built from measurements and from the circuits themselves.

Measured, not guessed

The tonewheels' harmonics, bleed, hum and drift are measured from four real organs. Each rotary cabinet is fitted to that cabinet's measured response.

Controls with physical meaning

The horn's radius, the microphones' distance and angle, how hard the amp is pushed. Change them and the model is rebuilt from your settings: no crossfading between recordings.

The circuit, not a preset curve

The preamp and the cabinet's tube amp come from their real components and datasheets. A neural network is trained on the circuit's own behavior, down to its growl.

One engine, every product

Rubigo Rotary is the rotary cabinet and amp inside Rubigo RB3, as its own plugin: the same code, so it sounds the same in both, and every improvement reaches both.

Support

Need help?

Questions, license transfers, bug reports — reach out directly and a real person will get back to you.

Discord is for general chat and community help — for anything account-related (license keys, purchases, refunds), email is best. See the manuals for installation, licensing, and troubleshooting: Rubigo RB3 · Rubigo Rotary.