Real B3 sound, measured.
Measured from real hardware. A vintage tonewheel organ modeled after a B3, for Linux, Windows and macOS, with native CLAP and first-class Linux support.
Free forever on Linux. 30-day full trial on Windows and macOS.
Measured from real hardware. A vintage tonewheel organ modeled after a B3, for Linux, Windows and macOS, with native CLAP and first-class Linux support.
Free forever on Linux. 30-day full trial on Windows and macOS.
Most tonewheel plugins use theoretical algorithms or huge sample libraries. RB3 synthesizes every tonewheel, with the harmonics, wheel-to-wheel bleed, hum and pitch drift measured from four real organs.
Add a 9-contact physical key-click model and you get an instrument that breathes like the real thing.
Play a chord, and a real B3 quietly gives a little back — tonewheels shared by more key contacts lose output as the load increases. Many emulations don't model it at all, or tie it to the registration instead of to what you play. RB3 models it per tonewheel, scaled to how many contacts actually share each wheel.
Five characters built from measured differences between real organs: Typical, Clean, Worn / Bright, Leaky / Humming and a European 50 Hz organ.
Set up the pedal and the drive three ways, like on modern stage organs: the pedal drives the overdrive, the pedal only sets the volume, or the pedal only sets the grit.
The organ's matching transformer, which compresses big chords and lets them breathe, and the warm color of its own preamp tubes, each on its own control.
Ten factory presets and ten of your own, each with its own trigger: recall one mid-song from a MIDI foot controller, or with Program Change from your DAW.
Played on RB3. One engine. No samples.
Per-degree convolution across 360 impulse-response slices, synthesized from the cabinet geometry you set. Three cabinets — 122 / 147, Studio 12 and G37 — each with its own horn, drum, crossover and tone, fitted to that cabinet's measured response.
IR slices crossfade as the virtual rotor spins, reproducing the Doppler shift and cabinet resonance of a vintage rotary cabinet.
Edit the horn geometry directly: radius, mic distance, beam focus. The impulse responses are rebuilt from your settings, not baked in.
Independent horn and drum acceleration, with wind turbulence and mechanical noise that follow the rotation speed like the real cabinet.
Every component in the real AO28 preamp and the 122 cabinet's power amp, from the actual datasheets — not approximated, not guessed. We trained a neural network — the latest technology in amp emulation — directly on the circuit's own behavior: the 122's power amp included, down to its own tube growl.
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 manual for installation, licensing, and troubleshooting.
