Mercurial Tones has released a dynamic reactive spectral saturator and bus compressor which reacts to the incoming audio’s spectral shape and dynamics, and morphs in real time.
Three compressor characters. A pre-stage tube. RSX, our reactive spectral engine that adapts the saturation character to your audio in real time. Not just another bus compressor, a complete glue and color workstation built around the way real records sound.
Vanguard features
- RSX – Reactive Spectral Engine: The thing nobody else has. RSX listens to your source in real time and reshapes the saturation curve to match it, pulling muddiness out of bass-heavy material, softening harshness on bright sources, never imprinting the same color twice. Manual override if you want to lock the response.
- Three compressor modes: Vintage for classic glue and warmth, Modern for fast and transparent control, Bass tuned for the low end. Auto-release breathes with the track instead of fighting it.
- Tube saturation stage: Three voicings – Tight, Hot, and Cal – sitting in front of the compressor, with SMACK: a transient-aware drive that lets the punch through instead of smearing it. Parallel mix to dial in exactly how much tube you want.
- Smart detection & sidechain: Sweepable high-pass, adjustable lookahead, 0–100% stereo link, automatic makeup gain. One pass to set it, then it just sits right.
- Output stage with clipper: Soft, hard, and shaped clipping modes after the compressor, with a delta-listen solo so you can hear exactly what’s being removed. Parallel mix on the clipper, too.
Vanguard for Windows and macOS (VST3/AU) is on sale for the introductory price of €39 EUR for a limited time (regular €49 EUR).
More information: Mercurial Tones

