VoltusFX is a FREE, hardware-inspired hybrid multi-effect plugin that combines vintage BBD delay, screaming dual-stage saturation, and lush modulation to inject raw, analog chaos into your tracks.

Inspired by legendary, esoteric hardware effects, Voltus FX isn't designed to be polite. It’s a gritty, character-rich powerhouse built for producers and sound designers who crave authentic analog unpredictability. By intentionally bypassing clinical digital oversampling, Voltus FX allows its custom-modeled Bucket Brigade Device (BBD) delay and dual-stage saturation to fold back and intermodulate naturally, delivering roaring textures and dark, lo-fi warmth.

With a massive input gain stage capable of pushing up to +48dB into the drive circuits, coupled with an adaptive Chamberlin color filter and a reactive visual UI, Voltus FX transforms sterile digital audio into a breathing, vibrating organism. Whether you need subtle vintage echoes or total industrial sonic destruction, Voltus FX delivers pure, unpolished character - absolutely free.

Transform your signal with two distinct, meticulously modeled drive circuits that can be pushed to the absolute limit:

• TUBE (Asymmetric Triode): Delivers warm, vintage tube-style saturation. It reacts asymmetrically to your audio, providing musical soft-clipping on positive peaks and harder clipping on negative peaks. Perfect for adding analog life to sterile synths or vocals.

• DIODE (Germanium): A relentless algebraic soft-clipping algorithm. It provides a harder, more aggressive bite without the harshness of digital clipping. Ideal for industrial drum busses, techno basslines, and total sonic devastation.

• Stop playing it safe. Voltus FX features a custom-scaled, exponential Input Gain stage capable of pushing up to +48dB into the saturation circuits.
• Go from subtle analog warmth at unity gain to screaming, intermodulated distortion with a single knob turn, replicating the behavior of overdriven hardware units like the legendary Fusion Box.

Authentic Bucket Brigade Device (BBD) emulation designed for dark, moody, and unpredictable echoes:

• Hermite Interpolation: Change delay times on the fly without digital zippering artifacts.

• Analog Character Control: Seamlessly morph from a clean delay to a dark, lo-fi vintage unit. Pushing the character introduces subtle, modeled analog circuit noise and darkens the repeats for authentic retro vibes.

Breathe life and movement into your echoes with a highly optimized, continuous LFO engine:

• 6 Selectable Waveforms: Sine, Triangle, Saw, Square, Sample & Hold, and Drift.

• Smoothed S&H & Drift: The Sample & Hold waveform is internally smoothed to prevent clicks, while the Drift mode introduces random, tape-like wandering for organic unpredictability.

• Artifact-Free: Custom phase-wrap mathematics ensure that even extreme modulation depths and speeds remain perfectly click-free.

Sculpt your tone with a professional State Variable Filter (SVF) based on the classic Chamberlin topology:

• Smoothly tame harsh high frequencies generated by the distortion circuits.

• Features adaptive dynamic stability, allowing you to push the resonance without blowing up the internal audio engine.

Studio-grade processing under the hood:

• Zero Oversampling by Design: Intentionally bypasses digital smoothing to preserve raw harmonic folding and true hardware-style distortion.

• Bulletproof Math: Custom FastMath sanitization prevents NaN/Inf blow-ups, keeping your DAW and speakers safe even under extreme settings.

• Denormal Protection: Built-in safeguards against CPU spikes for rock-solid live performance.

• Zero Latency: Perfect for real-time tracking, live jamming, and zero-delay parallel processing.

Get started instantly or build your own library of chaos:

• 30+ Factory Presets: Covering diverse use cases from subtle tape-like warmth to extreme, speaker-ripping distortion.

• Smart Browser: Easy preset navigation with automatic dirty-state detection (asterisk indicator).

• Save & Share: Save unlimited custom presets as portable .xml files.

• Sample rate support: 44.1 kHz - 192 kHz
• Bit depth: 32-bit floating point internal processing
• Latency: Zero latency (no look-ahead or oversampling delays)
• Input Gain Stage: Exponential drive mapping (-12dB to +48dB)
• Channel configuration: Stereo in / Stereo out
• Safety: Hard-coded output ceiling with absolute NaN/Inf sanitization

• Custom Bucket Brigade Device (BBD) emulation with analog noise injection
• Hermite interpolation for artifact-free delay time modulation
• Dual-stage saturation: Asymmetric Tube (triode) and Germanium Diode (algebraic soft-clipping)
• Adaptive Chamberlin State Variable Filter (SVF) with dynamic stability limits
• Click-free 6-waveform LFO engine (including interpolated Sample & Hold and Analog Drift)
• Integrated DC blocking filters post-saturation
• Custom Padé approximant tanh functions for organic, foldback-rich distortion

• CPU-efficient math operations via custom FastMath DSP utilities
• Anti-denormal protection at module level to prevent CPU spikes
• Lock-free std::atomic variables for thread-safe UI audio reactivity
• Smoothed parameter transitions for click-free DAW automation
• Native zero-oversampling design to preserve raw harmonic character and minimize CPU load

• Format: VST3
• Platform: Windows 64-bit (macOS support coming soon)
• Minimum OS: Windows 10
• Tested DAWs: FL Studio, Ableton Live, Reaper, Studio One, Cubase, Bitwig

MINIMUM REQUIREMENTS
• Windows 10 (64-bit)
• Dual-core processor (2.0 GHz or faster)
• 4 GB RAM
• VST3-compatible DAW
• 50 MB free disk space

RECOMMENDED REQUIREMENTS
• Windows 10 / Windows 11 (64-bit)
• Quad-core processor (2.5 GHz or faster)
• 8 GB RAM or more
• VST3-compatible DAW
• 100 MB free disk space