Relab Sonsig Pro Bundle — Free Download
The Sonsig Pro Bundle pairs a true-stereo algorithmic reverb with a dual-engine dimensional expander, offering deep spatial processing for music and post-production. It includes Rev-A and ACE.

Sonsig Rev-A Reverb
Sonsig Rev-A is a true-stereo algorithmic reverb that blends classic reverb techniques with modern filter and modulation controls. It is designed for creating lush, realistic spaces, from small rooms to expansive halls. The plugin offers over two hundred presets, allowing quick access to a wide range of sonic environments, and is built to be both powerful and user-friendly.
The interface integrates traditional reverb parameters with advanced modulation, giving you precise control over the character and movement of the reverb tail. This makes it suitable for adding depth to vocals, instruments, or full mixes while maintaining a natural and immersive quality. Its true-stereo processing ensures accurate spatial representation, enhancing the realism of your reverb effects.
Sonsig ACE Dimensional Expander
Sonsig ACE is a versatile dimensional expander that uses a unique multi-voice, dual-engine design. It provides a wide range of textures, from subtle stereo enhancement to complex, swirling effects, making it a flexible tool for enriching mixes. The expander excels at creating artifact-free stereo spread and offers excellent mono compatibility, avoiding typical comb-filtering issues found in other stereo processors.
With customizable LFOs and multiple COLOR modes, ACE gives you precise control over modulation, adding dynamic texture and movement to audio. It is suitable for widening guitars, synths, or entire buses, and can be used to create immersive soundscapes. The dual-engine design allows for a variety of spatial effects, ensuring both professional and enthusiast users can achieve polished, high-quality results.
Workflow and Integration
The Sonsig Pro Bundle is designed to streamline your spatial processing workflow. Both plugins feature intuitive interfaces that allow for fast tweaking, and the preset libraries in Rev-A help you find a starting point quickly. You can use Rev-A for reverb tails and ACE for widening effects, combining them to build complex, evolving spaces.
For mixing, you might insert Rev-A on a send or return track to add ambience, while ACE can be applied to individual tracks to enhance width without compromising mono compatibility. In post-production, the bundle serves to create realistic rooms or to add creative depth to dialogue or sound effects. The plugins are designed to work together seamlessly, offering a complementary set of tools for shaping width and depth.
Practical Applications
In music production, use Sonsig Rev-A to place instruments in a realistic acoustic space, such as a intimate room or a grand hall, then apply Sonsig ACE to stereo enhance pads or backing vocals for a wider presence. The combination can transform a dry mix into a lush, immersive soundscape without overwhelming the core audio.
For sound design and scoring, ACE’s modulation capabilities are excellent for creating evolving textures, while Rev-A provides believable ambient tails for cinematic cues. In mixing and mastering, the expander can subtly widen a stereo bus, while the reverb adds depth to a lead vocal. The bundle is ideal for professionals looking for high-quality, flexible spatial tools.
Key features
- True-stereo algorithmic reverb with modern filters and modulation
- Over two hundred presets for reverb
- Multi-voice dual-engine dimensional expander
- Artifact-free stereo spread with excellent mono compatibility
- Customizable LFOs and COLOR modes for modulation
- Lush and immersive textures from subtle to complex
- User-friendly interfaces for fast workflow
Best for
Best for music producers, mixing engineers, and sound designers who need a versatile reverb and expander to add realistic depth and wide, immersive stereo imaging. Ideal for genres from ambient to pop, and for post-production, offering natural reverb and artifact-free width.