
Splitfire 3255 Wood Splitters

Overview
Compact, aggressive live sampler featuring 3 voices and 16 slices with a 4 s buffer. Record audio, slice or pitch-map it to keys, and shape playback in real time with CV and performance controls.
Specifications
| Product | SPLITFIRE FURIOSO |
|---|---|
| Form factor | 2RU |
| Voices | 3 |
| Maximum slices | 16 |
| Buffer length (approx.) | ~4 seconds |
| Supported record modes (REC MODE) | HOLD, FIXED, Q (quantize) |
| Core playback mapping | Slice mode (per key) or Pitch mode (mapped to key pitch) |
Quick Start Guide
- Wire audio in: connect an external source to IN L/R (synth, sampler, drum machine, or mic preamp).
- Set REC MODE by selecting HOLD, FIXED, or Q (under the HOLD label).
- Press REC and play your source; the IN meter shows real-time input levels. The unit captures up to ~4 seconds.
- Connect a MIDI keyboard and play notes. Furioso accepts MIDI input; the waveform screen shows a live playhead indicator.
- Set MODE (right side). Choose SLICE to trigger individual slices per key (C3 = slice 1, C#3 = slice 2, etc.) or PITCH to play the entire sample mapped to key pitch.
- Tweak parameters in real time (e.g., SPEED, PITCH, REV, LOOP). Use CLR to clear the buffer or UNDO to restore the previous sample state.
Front panel controls
Back panel (CV I/O)
Control Map
Every control on the front panel, grouped by functional zone.
SAMPLE
- FADE MODE: Loop crossfade behavior (auto/manual)
- XFADE: Loop crossfade duration
- SLICES (auto/man): Slice mode & slice count adjustment (1 to 16)
- TRANS: Transient detection sensitivity for automatic slicing
WAVEFORM / DISPLAY
- START: Pitch-mode audio region starting point (maps to start key)
- END: Pitch-mode audio region ending point
- DISPLAY: Renders the live waveform, playhead activity, slice grid, and mute/loop status indicators
RECORD
- REC: Start recording/re-recording
- CLR: Clear active sample buffer
- UNDO: Restore the previous sample state
- HOLD/FIXED/Q: Select record trigger and timing modes
- IN METER: Visual LED level meter (green/yellow/red)
VOICE PARAMS
- ROOT: Root note definition for pitch-mode mapping
- PORTA: Portamento transition duration
- ATK / REL: Volume envelope attack and release times
- PAN: Output stereo pan spread across voices
- DEGR: Bit-depth and sample-rate reduction degradation control
- VOL: Output master volume level
STUTTER
- SIZE: Loop length of the stutter window
- STUT: Instantly engages the stutter mechanism (also triggerable via CV gate)
- RATE: Playback rate within the stutter window
CHANNEL
- MUTE: Instantly mutes the module during live performance
- VOICE Q: Selects voice architecture: Poly, Mono, Legato, or Retrigger
- SIZE: Sets recording quantize size (5 selective options)
- LEN: Sets recording duration for the FIXED record mode
PLAYBACK
- SPEED: Playback speed multiplier from 0x to 3x (1x marked at physical detent position)
- PITCH: Toggles primary playback engine between Slice and Pitch modes
- REV: Toggles reverse playback direction
- LEN: Active loop length window (active within slice boundaries or pitch regions)
- LOOP / MODE / PERF: Controls loop execution, sub-mode switching, and performance expression options
DISPLAY READOUT
- M / LOOP / ►: Direct visual feedback for Mute status, Loop configuration, and Transport status
- 1.00 / 1: Current slice metadata readout
- LOCK / ✦: Quantize lock state and individual slice alteration indicator
| Input Port | Function | Output Port / Channel | Function |
|---|---|---|---|
| IN L/R | Audio inputs | OUT V1/V2/V3 | Per-voice independent direct audio outputs |
| GATE / NOTE | Sequencer pitch and gate inputs | OUT (main) | Master stereo mix output |
| REC | Record trigger gate (active on rising edge) | CLR | Buffer erase gate (active on rising edge) |
| MUTE | Mute control gate (level-based or edge-triggered) | STUT | Stutter activation gate (active when gate is high) |
| SLICE | Slice selection voltage (maps 0..1 to 1..N slices) | PLAYHEAD (out) | Generates playhead position CV (0..1 scale) |
| SLICES (v3.2) | External slice control (forces slice counts 1..16) | SLICES (out) | Outputs current slice count signal (0..1 scale) |
| WIN (v3.2) | Bipolar modulation input for Stutter window size | RATE (v3.2) | Bipolar modulation input for Stutter rate |
| PORTA | Modulation input for Portamento rate | SPEED | Modulation input for playback Speed |
| REV | CV toggle input for reverse playback direction | LEN | Modulation input for Loop length limits |
| ATK / REL | Modulation inputs for envelope Attack & Release | START / END | Modulation inputs for Pitch-region boundary targets |
- Drum Deconstructions: Run 5 instances of the Furioso inside a Combinator wrapper for complex drum-kit splitting and slicing. It uses significantly less RAM than a single Rubato module and easily fits within 10 RU.
- Polyrhythmic Grid Modulation: Standardize rhythmic variation by patching dedicated CV outputs or external LFO signals into the back panel’s SLICES inputs. Modulating the slice limits with distinct, un-synced LFO frequencies creates intricate polyrhythmic shifts.
- Dynamic Slicing: Feed the
cv_gate_recport a trigger from an active sequencer track. This enables automatic loop recapture at structural bars, generating ever-evolving sample variations. - Morphing Textures: Integrating CV triggers into Stutter RATE and SIZE on version 3.2 firmware changes the stutter function from a simple on/off switch into a deeply expressive, continuously variable audio effect.
Troubleshooting
- No (or unexpected) recorded audio: Verify audio input by watching the IN METER while you press REC and play the source; it should move with your incoming signal.
- Buffer seems wrong, or you need a fresh capture: Use CLR to clear the active sample buffer, then record again.
- Accidentally changed the sample state: Use UNDO to restore the previous sample state.
- Playback timing/mapping not behaving as expected: Confirm you selected the intended REC MODE (HOLD, FIXED, or Q) and the intended MODE (SLICE vs PITCH) before performing.
- Stutter/performance gates not responding (if using CV): Ensure the STUT gate input is high to engage stutter (STUT is active when gate is high).
- Loop-related behavior not matching your intent: Adjust LOOP / MODE / PERF controls and loop settings such as LEN and SIZE (stutter window size) to match the desired active region/loop length.
Documents / Resources
![]() | 3255 Wood Splitters |
References
- User Manualmanual.tools
Published: July 28, 2026

