Used Universal Audio Ruby Top Boost Amplifier '63 Guitar Preamp

Used and in good condition, the Universal Audio Ruby '63 Top Boost Amplifier guitar preamp authentically captures the chime and sparkle of the iconic British tube amps from the early '60s. Designed with Universal Audio’s UAFX dual-engine processing, the Ruby delivers rich, detailed tones with onboard speaker cabinet emulation and room modeling. It features classic amp controls including Volume, Treble, and Bass, along with Brilliant, Normal, and Vibrato channel voicings. With stereo ins/outs, true/buffered bypass, and USB-C for firmware updates, this pedal seamlessly integrates into modern setups while offering vintage character. Ideal for studio or stage, the Ruby '63 gives players timeless top boost tones in a pedalboard-friendly format.