Used Universal Audio RUBY '63 Guitar Preamp

Used Universal Audio RUBY '63 Guitar Preamp in great condition, offering authentic British Invasion tone with classic EL84 tube character. This pedal emulates the iconic Vox AC30 sound, featuring volume, brilliance, and boost controls, as well as integration with UA’s UAFX Control app for customizable presets. Built with studio-grade components and dual-engine processing, it's perfect for players seeking rich harmonics and chime in a durable, road-ready design. Excellent tone and versatility in one compact unit.