The most technically precise B3 ever built.

Written in Rust. Measured from real hardware. The world's first Hammond B3 plugin with native CLAP and Linux support.

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13 MB Install Size
0.13ms CPU Load
Zero Samples Used
CLAP & VST3 Formats
Linux Native
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Hardware, mathematically proven.

Most tonewheel plugins use theoretical algorithms or heavy 900MB sample libraries. We took a different approach. We measured the exact crosstalk matrix from real hardware to extract 6,552 individual leakage coefficients.

Combined with our 9-staggered-contact physical key click model, the result is an instrument that breathes exactly like the real thing, compiling down to a tiny 13MB binary.

Hear the Hardware

Three genres. One engine. No samples.

Jazz Trio
Clean tone · drawbars 868000000 · Leslie slow
2:14
Gospel Ballad
Swell expression · percussion on · Leslie fast
3:02
Heavy Rock Overdrive
CatLSTM drive · drawbars full · Leslie fast
1:47

A Rotary Speaker that
actually moves air.

Per-degree convolution. 360 IR slices. Absolute realism.

Real-time physics.

360 IR slices crossfade in real-time as the virtual rotor spins, synthesizing the exact Doppler effect and cabinet resonances of a spinning Leslie 122. No approximations.

Total Control.

Edit the physical geometry of the horn directly — radius, mic distance, and beam focus. The convolution IRs are synthesized from your parameters on load, not baked in.

Dynamic Airflow.

Independent horn and drum acceleration curves. Dynamic wind turbulence and mechanical noise that emerges naturally from the rotation speed, just like the real cabinet.

Neural Engine

AVX2-Optimized Neural Tube Drive.

Powered by our CatLSTM engine trained on real AO28 preamps. Zero generic saturation. Zero CPU bloat.

The AO28 preamp overdrive isn't a generic saturator. It's a conditioned LSTM neural network, trained on real hardware measurements, compiled directly into the Rust binary with AVX2 SIMD — so it uses almost zero CPU.

Full Version
$49
One-time purchase · all formats included
Buy Now - $49
Community Edition
Free
Core organ engine · Linux & Windows
Download Free
Install Size13 MB
PlatformLinux · Windows
FormatCLAP · VST3
CPU Load~0.13ms/block
Architecturex86_64 (AVX2)
Tonewheel Engine97 tonewheels
Crosstalk6,552 coefficients
Key Click9-contact model
Rotary Engine360 IR slices
Neural AmpCatLSTM (AO28)
DependenciesZero
LicensePerpetual