D16 Spacerek — Free Download
Spacerek is a hybrid reverb plugin by D16 Group that blends simulated early reflections with a dynamic delay network for realistic, CPU-efficient spatial effects.

Purpose and Design
Spacerek is a virtual space reverb built on a hybrid algorithm that splits reverb generation into two distinct components. Early reflections are produced by a proprietary Virtual Space Reverb engine, which simulates real-world acoustics with detailed modeling of room properties and stereo microphone and speaker placements. Late reflections are generated by a dynamic delay network, which blends with the early reflections to form a cohesive, natural-sounding tail.
This separation allows for independent control over each reflection stage, giving you flexibility in shaping the reverb’s character. The plugin includes a collection of reverb models that cover a wide range of spaces, from small booths and chambers to large halls, tunnels, chapels, and towers. Each model integrates multiple mic and speaker setups, expanding the sonic possibilities without cluttering the interface.
Key Capabilities
The plugin’s mixer provides three channels for the direct signal, early reflections, and late reflections. Each channel includes volume and balance controls, with stereo operation configurable as left-right or mid-side depending on the selected reverb model. You can adjust the pre-delay time for early and late reflections independently, with precise control down to nanosecond increments for fine-tuning the spatial timing.
For tone shaping, Spacerek includes a Tilt EQ that boosts or cuts lows and highs in a musical way, plus a Low Cut filter that can be applied independently to the mid or side signal to remove mud or rumble. These tools let you tailor the reverb tail to fit your mix without needing extra processing.
Workflow and Integration
Spacerek is designed for straightforward integration into your mixing or sound design workflow. The tag-based preset browser helps you quickly find suitable reverb models by category, while the resizable GUI adapts to your screen. MIDI Learn allows you to assign hardware controllers to parameters, making live tweaks or automation easier during performances or sessions.
The CPU-friendly hybrid design is particularly useful when running multiple instances in a project, as it reduces system load compared to typical convolution-based reverbs. The plugin processes internally at high precision, ensuring that the audio remains clean even with complex settings.
Practical Applications
Use Spacerek to add realistic ambience to vocals, instruments, or full mixes, leveraging the variety of room models to match the spatial feel of a recording environment. The independent early and late reflection controls are useful for creating depth, such as placing a source in a large space while keeping the direct signal clear. The mid-side filter and tilt EQ are handy for shaping the tail to avoid masking other elements.
For sound design, you can explore the different mic and speaker configurations to create unusual spatial effects, from tight booths to cavernous tunnels. The balance controls let you adjust the stereo width, and the pre-delay settings can simulate distance or echo-like characteristics. Whether mixing or designing, Spacerek offers a flexible set of tools for sculpting reverb.
Key features
- Hybrid algorithm combining Virtual Space Reverb for early reflections and Dynamic Delay Network for late reflections
- Collection of reverb models covering diverse room types with multiple mic and speaker setups each
- Three-channel mixer for direct, early, and late reflection signals with level and stereo balance controls
- Independent pre-delay controls for early and late reflections with high precision
- Tilt EQ and Low Cut filter for tonal shaping, with mid-side activation for the filter
- Tag-based preset browser, resizable GUI, and MIDI Learn for control assignment
Best for
Best for music producers and sound designers who need a realistic, CPU-efficient reverb for mixing or creative spatial effects, offering detailed control over early and late reflections and flexible stereo operation.