1. What Is Quantastical Sound Synpathy?
Synpathy is a string machine instrument built around sympathetic resonance. The voices you hold down share a single field and feed into one another, much like real strings influencing each other over a soundboard. Hold a chord and the sound never sits still: it slowly swells, breathes, and settles into a slightly different shape every time you play. Behind three large, easy-to-use knobs lies a deep structure, so there is no need to dig through menus or hunt endlessly for presets. No licensing or activation is required. Version 2.0 runs lighter than before, but it is still a somewhat CPU-heavy plugin.
Key Features
- String machine based on sympathetic resonance
- FORM: shapes the classic synth-strings tone from thin and hard to wide and chorus-like
- AURA: controls the surrounding space, from dry and intimate to vast and washed out
- SYNPATHY: sets how strongly the voices react to each other, from gentle glue to deeply swelling resonance
- 16 hand-tuned presets you can switch with the arrow keys
- Per-voice humanization so the same chord never sounds exactly the same twice
- No license or activation required
- Version 2.0, signed and notarized on macOS
2. How to Download and Install Synpathy
Click the “Download free” button on the official page, enter your name and email address, and check out for $0. You can then create an account from the email you receive and download and install the plugin.

