Conceived from the award-winning Astra Modulation Machine, Brigade Chorus & Vibrato offers analog modulation effects of the Boss CE-1 Chorus Ensemble and its iconic preamp in a compact stompbox. It provides rich bucket-brigade chorus effects, from subtle detuned textures to warbled vibrato sounds, and enhances tone with a vintage analog preamp. Featuring true/buffer bypass and preamp off/on switches, this pedal delivers classic modulation effects with UA’s renowned craftsmanship and design.