The Vongon Rosetones is a polyphonic synth voice pedal that follows your playing. Vongon describes it as a pedal that "listens to your notes and routes them through sympathetic resonators, creating blooming harmonic textures and evolving chords"1. It sits among synth pedals but works differently from most: instead of replacing your guitar's tone with a synth patch, it analyzes what you play and answers it with resonating voices tuned to your notes.
Under the hood, Vongon describes a 12-voice chromatic resonator bank that continuously analyzes the input signal and routes detected pitches into tuned delay lines2. The pedal offers selectable chorus and vibrato modulation modes with per-voice detune2, so the resonating voices can be left clean or given movement.
How the engine works
The Rosetones tracks the pitches you play within a range of C2 to B52. Detected notes are fed into the resonator bank, where each voice rings in sympathy with the input, producing the blooming, chord-like textures the pedal is built around. Because the engine is polyphonic, chords rather than single notes drive it, which sets it apart from monophonic pitch-tracking designs like the Electro-Harmonix Micro Synth or the Source Audio C4 Synth.
Controls, connections and power
The pedal uses soft-touch foot switches1 and accepts ¼" TS jacks that are compatible with instrument or line level1, so it can sit on a guitar pedalboard or take a line-level feed. Bypass is selectable between analog buffered and DSP bypass1.
| Specification | Value |
|---|---|
| Input impedance | 1MΩ1 |
| Output impedance | <1kΩ1 |
| Power | 9 VDC, center-negative1 |
| Current draw | 200mA1 |
| Dimensions | 165mm × 140mm × 45mm1 |
| Pitch tracking range | C2 to B52 |
| Presets | 9 slots2 |
| MIDI | 3.5mm input, Type B1 |
The Rosetones draws 200mA at 9V1, which rules out most battery power and may exceed what a shared daisy-chain output can deliver. Plan a dedicated supply output for it.
Enclosure and availability
Instead of a metal box, the Rosetones is housed in a single block of walnut that is CNC routed, then hand sanded and polished2. Downloads, user manuals and FAQs are available on the company's support page1.
At $449.00 USD1, it is priced above many conventional synth pedals, and its wooden enclosure and resonator-based approach place it closer to experimental texture pedals like the Artium Instruments Hungry Robot The Swarm than to patch-based units such as the Boss SY-300 Guitar Synth.
Videos
Vongon
SpiralCasterPlaysPedals
Harp Lady
Sources (2)
- VONGON ROSETONES, Vongon
- VONGON ROSETONES, Vongon
