FB3
Key Features
- Recreates the Kawai K3/K3m's digital-wave-generator and analog-style-filter character in a DAW instrument.
- Includes original factory sounds plus SysEx and User Wave import/export for working with existing K3 material.
- Offers up to 64 voices for dense chords and layered parts beyond the original hardware's practical limits.
- Pairs resonant low-pass and global high-pass filtering with separate amp and filter ADSR envelopes.
- Adds playable expression through LFO modulation, velocity, aftertouch, portamento, chorus, and MIDI Learn.
- Supports MTS-ESP dynamic micro-tuning and can use its interface to edit an original K3 or K3m unit.
Description
FB3 is Full Bucket Music's software recreation of the Kawai K3 and K3m, the 1986 hybrid synths that paired digital wave generation with analog-style filtering. It brings their crisp, characterful oscillator sound into a modern DAW while retaining the original factory sounds and the focused architecture that gives the instrument its identity.
Two oscillators can draw on the K3's original wave-generator approach, while the User Wave workflow lets you build or import material for more individual tones. The synth also combines resonant low-pass and global high-pass filtering with dedicated amp and filter envelopes, LFO modulation, velocity, aftertouch, portamento, and chorus for animated pads, basses, leads, and unusual digital textures.
FB3 expands practical performance beyond the hardware with up to 64 voices, a resizable interface, MIDI Learn, and MTS-ESP dynamic micro-tuning. It can import and export SysEx and User Waves, and the interface can edit an original K3 or K3m, making it especially useful for producers who want vintage hybrid character alongside existing patch libraries.
This is a deliberately specific instrument rather than a sprawling modern wavetable workstation. Its appeal is the contrast between precise digital waveforms and a simpler filter stage, so it suits musicians looking for period-appropriate 1980s color and direct, hands-on sound design.
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Frequently Asked Questions
What hardware does FB3 emulate?
FB3 simulates the Kawai K3 and K3m, hybrid synthesizers introduced in 1986. The design combines the original digital wave-generator concept with analog-style filtering.
Can FB3 use Kawai K3 patches?
Yes. Full Bucket Music lists SysEx and User Wave import and export, and says the interface can edit original K3/K3m units. The included factory sounds provide a starting point before loading compatible material.
Which plugin formats and systems are supported?
The developer lists VST2, VST3, CLAP, and AAX for Windows, plus VST2, VST3, CLAP, AU, and AAX for macOS. The standard macOS builds are Universal Binary 2 for Intel and Apple Silicon Macs.
Is FB3 aimed at modern wavetable synthesis?
No. FB3 focuses on the more constrained K3/K3m architecture and its vintage hybrid character rather than an expansive contemporary wavetable workflow. Its 64-voice limit, MIDI Learn, and micro-tuning support add modern convenience without changing that focus.
