Today marks a milestone for UB DSP: the official release of Grit Blender, our debut audio plugin. After months of development, critical listening sessions, and countless iterations, we are proud to put this tool into the hands of musicians, producers, and engineers everywhere.
Grit Blender is a multi-format saturation plugin built around a simple idea: what if you could blend different types of harmonic distortion the way a painter blends colors? That question drove every design decision, from the DSP algorithms to the user interface to the plugin architecture itself.
Why Another Saturation Plugin?
The market is not short on saturation plugins. So why build another one?
Most saturation tools give you one or two flavors and a drive knob. Some give you more options, but the interface makes it tedious to experiment. We wanted something different: a plugin that makes it genuinely fun to explore harmonic textures, with an interface that feels as immediate and responsive as playing an instrument.
The result is twelve carefully modeled saturation types, each with its own harmonic character:
- Tape — Warm, soft-knee compression with even harmonics
- Tube — Asymmetric plate saturation with grid conduction
- Transistor — Cascaded soft-diode clipping, tight and aggressive
- Digital — Quantization and bit-reduction crunch
- Diode — Germanium and silicon asymmetric clipping
- Fuzz — Full-wave rectification with octave-up overtones
- Desk — Console channel: transformer and op-amp coloration
- Ribbon — Magnetic tape hysteresis for the smoothest saturation
- Pentode — Power tube push-pull with sag
- Rectifier — High-gain cascaded 3-stage clipping
- Wavefolder — West Coast synthesis-style harmonic folding
- Asymmetric — Pure even-harmonic generator
The Blend Interface
What sets Grit Blender apart is not just the number of saturation types — it is how you combine them. The innovative blend interface lets you mix between saturation algorithms using three distinct modes:
- 3-Way Triangle — Drag a cursor inside a triangle to blend three saturation types. Position determines the mix ratio.
- 12-Way Advanced — A grid of independent sliders, one per saturation type, for full control over the exact blend.
- Dual Stage — Two triangle panels in series. Stage 1 feeds into Stage 2 with automatic inter-stage filtering.
On top of that, a dedicated M/S toggle lets you split the stereo signal into Mid and Side channels for independent saturation. Tape into Transistor in dual stage. Desk blended with Ribbon in the triangle. Tube on the center, Fuzz on the sides. The possibilities are vast, and the interface makes it easy to explore them.
Works in the DAW You Already Use
Grit Blender ships as AU, VST3, CLAP and AAX on macOS, as VST3, CLAP and AAX on Windows, and as VST3 and CLAP on Linux. It is the same plugin in every format, with the same sound and the same controls, so pick whichever your DAW prefers.
It has been tested in Logic Pro, Ableton Live, Bitwig Studio, REAPER, FL Studio, Cubase and Pro Tools.
More Than Just Saturation
Grit Blender is designed to fit naturally into real mixing workflows. Several built-in features help you get great results faster:
- PUNCH — Preserves attack transients through saturation. Drums hit harder, vocals have more presence, even when heavily driven.
- SMOOTH — Dynamically tames harshness created by saturation, leaving the rest of the signal untouched.
- ANALOG — Adds the character of analog hardware: gentle high-frequency roll-off, subtle harmonics, a low-frequency bump, and a touch of noise floor.
- LOUDNESS MATCH — Automatically adjusts the output to match the input loudness, so you can make honest A/B comparisons without the loudness bias.
- Tone Curve Types — Five distinct EQ shapes (Default, Warm, Air, Smile, Presence) that completely change how the TONE knob sculpts your sound.
- MIDI Key Tracking — Send MIDI to the plugin to keep bass fundamentals clean while saturating upper harmonics.
No DRM, No Hassle
There is no iLok, no dongle, no internet activation required. Activation is simple: click the Activate button in the plugin and select your license keyfile. Done — it works offline forever.
An optional update checker and opt-in anonymous telemetry were added in later updates, but both are entirely under your control. You can turn them off at any time in the About dialog. Your tools should never be a source of friction in your creative process.
What Is Next
This is just the beginning. We have ideas for additional features, new saturation algorithms, and entirely new plugins — all following the same principles: artisan quality, privacy-first, and musician-friendly.
We built Grit Blender because we wanted a saturation tool that was a joy to use and a joy to hear. We hope you feel the same way.
Joy to use, joy to hear.
Grit Blender is available now. Get it here.
Ben, UB DSP