Universal Audio RUBY '63 Top Boost Amplifier TGF33

Mint, Perfect, Open Box with Full Universal Audio Warranty

Universal Audio UAFX Ruby '63 Top Boost Amplifier Pedal
Relive the golden era of British tube tone with the Ruby ’63, a UAFX amp simulator that faithfully captures the iconic Top Boost valve combo beloved by legends like Queen, U2, and Radiohead. Powered by UAFX dual-engine processing, this pedal delivers pristine shimmering cleans, rich overdrive, and lush vibrato—all in a compact, pedalboard-ready format.

Features

• Three amp channels in one stompbox: Normal, Brilliant, and Vibrato modes faithfully modeled from the original Top Boost circuit
• Integrated iconic boosts: Dallas Rangemaster treble booster and Maestro EP-3 tape preamp emulations bring punch and grit
• Built-in speaker cabinet, mic, and room simulations derived from OX™ Top Box for instantly stage- and studio-ready tone
• Over 100 hand-crafted RIG presets available for any amp modeler or genre (via UAFX Control app)
• UAFX Control app integration: Customize footswitch behaviors, assign presets, download artist tones, and access bonus speaker/mic models
• Silent/buffered bypass and 4-cable mode enable seamless switching and bypassing of your amp’s preamp
• Rugged and timelessly designed with trusted UA build quality and aesthetics

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 UAD modeling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classic vibrato.

Hear UAFX vs. Vintage Amps
Watch Rhett Shull, Tim Pierce, and Mateus Asato put UAFX Amp Emulators to the ultimate test.

Experience British Tube Amp Tones, Stage and Studio
Whether it's replacing your amp rig and going direct to front-of-house on stage, or recording tracks into your DAW — Ruby '63 gives you the inspiring, album‑ready tones of an expertly miked "golden unit" vintage tube combo, within seconds.

Explore Normal, Brilliant, and Vibrato Channels
Ruby '63 is the only stompbox that gives you the Normal, Brilliant, and Vibrato channels from the original amp — so you can fly to Ireland, London, or Liverpool with the flip of a switch. From mellow to chime to grind, it's all here.

Push the Limit with Classic Boosts
Ruby '63 packs classic boosts, right onboard. Namely, the legendary '60s Dallas Rangemaster germanium treble booster and the preamp of a '70s Maestro EP-3 tape delay.* Just flip the Boost switch for searing layered tones that put IR-based amp modelers in the bin.

Customize your Sound with the UAFX App
Ruby '63 really gets cracking with the UAFX Control mobile app. Download custom artist tones, recall and archive your presets, and dive deeper into the amp that ignited the British Invasion.

Specifications:

Dimensions & Weight
- Height: 2.56 in (6.5 cm)
- Width: 3.62 in (9.2 cm)
- Depth: 5.55 in (14.1 cm) (including knobs/jacks)
- Weight: 1.24 lb (0.567 kg)