Universal Audio Ruby ′63 Top Boost Amplifier guitar effect

Universal Audio Ruby ′63 Top Boost Amplifier

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.

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:

• With vibrato, room modelling, multiple speakers, cabs and boosts, live and preset modes, and customisation options with the UAFX mobile app
• Microphone and speaker combinations from the OX Amp Top Box
• 2x12 Speaker models: SILVER (rare 15W Celestion Silver Bulldogs), BLUE (oiriginal Celestion Blue Bulldogs), GREEN (modern Celestion G12Hs)
• Free additional cabinet models via UAFX Control App: 1x12 AC15 Cab with Blue Bulldog, 2x12 Matchless Cab with Celestion G12Hs, 2x12 Two-Rock Cab with Celestion Golds
• Power supply via 9 V DC power supply with min. 400 mA, centre-negative (not included, suitable power supply: art. 543322)
• 2 Inputs: 6.3 mm jack
• 2 Outputs: 6.3 mm jack
• USB-C connection
• Dimensions: 9.2 x 6.5 x 14.1 cm
• Weight: 567 g