FxB

FXB is a three-letter term that appears in different domains, with no single universal meaning. The most common technical usage is in digital audio and music software, where FXB refers to a preset bank file for audio effects.

In computing and audio production, .fxb files are banks of presets for a single plugin. While .fxp files contain individual presets, .fxb bundles multiple presets into one file so users can browse and load sets of settings efficiently. Banks are typically specific to a plugin vendor or a given software environment (such as VST or DirectX effects) and may require the plugin’s preset editor or the host DAW to create, edit, or import them. Because formats and structures for banks can vary by developer, compatibility should be checked for each plugin.

Outside of audio, FXB sometimes appears as an acronym, code, or ticker symbol in various contexts. As with many three-letter identifiers, its meaning depends on the specific domain, and there is no single widely recognized definition of FXB beyond its use for preset banks in audio software. When encountering FXB in finance, branding, or other industries, it is important to consult the relevant source or listing to determine the intended meaning.

See also: FXP file extension (single presets), VST/DirectX preset formats, preset banks in audio plugins.