StereoDelta 2 is a single-knob spatial processor from Mathew Lane, using DrMS technology to control stereo width from true mono to 3D expansion with natural depth and mono compatibility.
Purpose and Core Function
StereoDelta 2 streamlines stereo manipulation by packing the advanced DrMS algorithm into one intuitive control. The knob spans from true mono fold-down on the left, through the original stereo position at center, to 3D expanded width on the right, all while maintaining mono compatibility.
This design makes it accessible for users overwhelmed by the full DrMS plugin, offering a straightforward way to adjust spatial properties without diving into complex parameters. Internal parameter combinations are pre-selected to deliver useful and unique results instantly.
Key Capabilities and Technology
Built on DrMS technology, StereoDelta 2 does more than simply widen the stereo image; it adds depth and openness, creating a more realistic soundstage. The single knob simultaneously adjusts multiple parameters, ensuring that even extreme settings retain a natural character.
The plugin is available in AAX Native, AU, VST2, and VST3 formats, and supports Windows 7 and above (32 and 64-bit), as well as macOS 10.7 through 11 Big Sur, including Apple Silicon via Rosetta 2. Licensing requires a free iLok account and License Manager, with machine or USB activation.
Workflow and Interface
The interface is built around one knob, making it effortless to integrate into any mixing session. Start with the original sound at 12 o’clock, turn clockwise for width expansion or counterclockwise for mono fold-down, and hear the immediate effect.
This simplicity allows for quick A/B comparisons and fast adjustments, ideal for engineers making spatial decisions on the fly. Each license includes two activations, enabling use on multiple systems. The plugin works as a direct insert on tracks or buses, with no latency concerns mentioned by the developer.
Practical Applications
StereoDelta 2 is suited for adding width to mono tracks, fixing overly narrow mixes, or creating immersive depth in stereo material. Its mono fold-down function is particularly useful for checking mono compatibility or preparing tracks for broadcast.
It can be applied to individual tracks or buses—from drums to vocals—to enhance spatial presence without harsh artifacts. The single control makes it a creative tool for sound designers seeking quick, musical widening or narrowing. For engineers, it provides a reliable way to ensure mixes translate well across playback systems.
Key features
- Single-knob control from true mono to 3D stereo
- DrMS technology for natural depth and openness
- Built-in mono compatibility assurance
- Supports AAX Native, AU, VST2, VST3 formats
- Works on macOS 10.7–11 and Windows 7+ (32/64-bit)
- iLok machine or USB licensing, two activations
Best for
StereoDelta 2 is ideal for producers and engineers who want a fast, musical way to adjust stereo width without complex controls. It excels at adding depth to mono sources, correcting narrow mixes, and ensuring mono compatibility, making it suitable for mixing, mastering, and broadcast preparation.