AU3FX:Dub is a powerful stereo delay AudioUnit effect developed by Kymatica AB. It offers a wide range of possibilities, from clean digital delays to filthy dub echoes, flangers, and broken cassette tapes. This app is part of the AU3FX series, which consists of simple yet powerful audio unit effect plugins.

The app's 32-bit DSP engine ensures high-quality sound processing, while the multitude of parameters allows users to tweak and customize their desired sound. With tape simulation for noise and warble effects, users can achieve a vintage feel. The inclusion of filters in the delay loop adds a typical dub sound characteristic.

AU3FX:Dub offers various delay options, including stereo delay, stereo detune, and ping-pong delay. Additionally, users can explore modulations through the sinewave and random dual LFO, enabling flangers and other modulations.

The app comes with several bundled presets, providing a starting point for users to experiment with different sounds. It also allows for the use of multiple instances simultaneously, giving users flexibility in their audio production. The ability to save and load session states within the host ensures convenience and easy recall of preferred settings.

AU3FX:Dub also offers external access and control of all parameters from the host, enhancing integration with other software and hardware. Additionally, user presets can be shared across hosts on iOS 13 and later, facilitating a seamless workflow.

Overall, AU3FX:Dub is a highly versatile stereo delay AudioUnit effect that caters to musicians, producers, and sound enthusiasts who seek to create unique and captivating audio experiences.