Get the British Invasion tones that inspired generations.
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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 toRadiohead.
Built on powerful dual-engine processing and UAD modeling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classicvibrato.
Get the valve amp that powered the British Invasion, perfectly emulated in astompbox
Stay inspired with rich Top Boost tones and tube-poweredvibrato
Take ace studio amp tones anywhere, complete with legendary mic/speaker pairings and famous boosteffects
Download artist tones, customize features, explore presets, and more with UAFX mobileapp
TAKE A LISTEN
Hear UAFX vs. VintageAmps
Watch Rhett Shull, Tim Pierce, and Mateus Asato put UAFX Amp Emulators to the ultimatetest.
Experience British Tube Amp Tones, Stage andStudio
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, withinseconds.
Explore Normal, Brilliant, and VibratoChannels
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 allhere.
Push the Limit with ClassicBoosts
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 thebin.
Customize your Sound with the UAFXApp
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 BritishInvasion.
Watch the Reviews
UAFX Control App & Owner'sManual
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Manual
Quick Start
“Just like the real vintage amps, I can crank UAFX Amp Emulators for drive, and use my guitar's volume control for sparkling, three-dimensional clean tones. I put all three on my studioboard!”
–David Ryan Harris (John Mayer, Dave Matthews, Santana)
“UAFX Amp Emulator pedals have become a staple in my studio. Each one is stacked with brilliant sonics that keep meinspired.”
–Tyler Bryant (Tyler Bryant & the Shakedown)
“The UAFX Amp Emulator pedals are so expressive, it's unreal. They give me more tones than I could ever need, and the app lets me easily recall my presets — all in a perfectly sizedstompbox.”
–Justus West (John Legend, Alicia Keys, Ty Dolla $ign)
“The new UAFX Amp Emulator pedals are remarkably faithful to the iconic amplifiers they model, letting me easily add vintage Fender and Vox tones to anysession.”
–Tim Pierce (Michael Jackson, Bruce Springsteen)
“The rich sound quality of UAFX pedals inspire you to playguitar.”
–Chris Traynor (Bush, Helmet)
“UAFX pedals sound amazing. They're instant inspiration with the right amount oftweakability.”
–Lyle Workman (Beck, Sting)
“I have a lot of old pedals. UAFX pedals give me all those classic sounds, without thehassles.”
–Dave Cobb (Rival Sons, Chris Stapleton, Sturgill Simpson)
“UAFX pedals have truly recreated classic analog effects of the past, and made thembetter.”
–Butch Walker (Green Day, Weezer, Taylor Swift)
Note that Ruby '63 Top Boost Amplifier requires a modern 400 mA isolated power supply (sold separately). Go here for power supplyrecommendations.
* Product names used herein are trademarks of their respective owners, which are in no way affiliated with Universal Audio Inc. These name(s) are used solely to identify products studied in the creation of the sound models found in Ruby '63 Top BoostAmplifier.
Customer Reviews
A. Blackwood
March 12, 2024
Unbelievably good - sounds & feels like my Audio Kitchen Big Trees / Vox amp
Despite being a UA customer for over 15 years - I was very skeptical this would actually sound like a real amp. I've owned and played Vox amps live and in studios over the years and in...
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R. Graterol
October 3, 2023
Unreal sound and feel
The tone and feel of this pedal is unmatched I think. The dynamics are very detailed, and the pedal does really feel like playing on an real amp. I’ve never played a vox ac30 but based on...
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J. Williams
August 17, 2023
Outstanding!!!
Sounds amazing. I have 5 stellar amps, and this pedal is satisfying to play like they are. Setup was easy. EQ is a bit finicky like a real amp. But once I hit it dialed in, it has been...
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功. 佐藤
April 25, 2023
UA Connectのバージョン注意
UA Connectのバージョンが古いと最新のファームウェアアップデートが受けられずiOS APPでのコントロールも効かないので要注意です...
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M. Caporizzo
July 25, 2022
Incredible Sound and Feel
The sound this pedal delivers is truly extraordinary. I have never before played a digital simulation with such an authentic feel, especially for the slightly broken up tones. The 4-cable...
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B. Lepsch
July 20, 2022
The hunt for my everyday guitar sound is over
I tried countless option over the years to get the feel of a real valve amp using various gears. I had great result using stomp boxes and emulators but never had the...
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