Stereo amp and cabinet emulation pedal with vibrato, room modeling, multiple speakers, cabinets, and boosts, live and preset modes, and customization with the UAFX mobile app.

Get the British Invasion tones that inspired generations. The UAFX Ruby '63 Top Boost Amplifier pedal gives you the quintessential British valve amp beloved by artists and producers for over 60 years, from Queen to U2 to Radiohead. Built on powerful dual-engine processing and world-class UAD modeling, Ruby ’63 delivers choirboy cleans, complex overdrive, and classic vibrato.