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Universal Audio Ruby '63 Top Boost Amplifier Pedal

Stereo Amplifier Simulator Pedal with 3 Modes, 3 Cabs/Speakers, Treble Boost, Vibrato, Bluetooth, and Presets
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British-style Tube Tones

Inspired by the legendary 2 x 12-inch combo amplifier that powered the British invasion, Universal Audio’s Ruby ’63 Top Boost amp pedal is loaded with jangle and bite! This pedal is an end-to-end emulation of one of the most iconic British amps of the ‘60s, sporting Brilliant, Normal, and Vibrato channels that deliver everything from chimey cleans to all-out crunch. Guitarists at Sweetwater are amazed at how closely the Ruby ’63 recreates the sound of a tube amp recorded in a live room, and this life-like quality comes courtesy of UA’s incredible mic, cab, and Dynamic Room Modeling technology. What's more, each pedal in the UAFX series allows you to bypass your amplifier's preamp when the pedal is engaged via the special "4-cable" mode, supercharging your amp with two additional channels. If you’re looking for even greater control, the Ruby ’63 sports Bluetooth compatibility to connect to Universal Audio’s UAFX app for enhanced editing, access to artist presets, and more!

Three distinct amp styles

Ruby ’63 comes loaded with three different channels for a wealth of sonic possibilites. Plus, depending on which channel you’re using, the boost control offers unique way to add some character to your tone!

Normal: Looking for a chimey clean tone? This setting features a high amount of headroom and simplified tone controls. As a nod to the original model, this setting’s only EQ shaping control is the Cut knob — both the Bass and Treble knobs are completely disabled. Turning the boost knob activates a germanium-style treble booster.

Brilliant: The perfect mode for guitarists chasing a ‘60s-style British tube crunch. This setting has the lowest amount of headroom and incorporates an extra tube for boosted treble and gain. In this mode, the boost injects a tape delay-inspired style of preamp gain into your signal.

Vibrato: This setting is similar to the Brilliant channel, but with the addition of a deep, choppy vibrato setting. To keep things smooth and clear, this setting’s boost control adds clean gain.

Switch up your speakers

Part of the Ruby ’63’s magic is found in the dead-on speaker/cab emulations, bolstered by Universal Audio’s Dynamic Room Modeling technology. The Ruby ’63 comes loaded with three cab/mic/speaker settings, seamlessly matched to the three different amplifier modes. Guitarists looking to cover a wide sonic range will love experimenting with the different speaker and amp pairings; plus, when registering the Ruby ’63 with Universal Audio, you get three more free cab sims to play with!

4-cable mode offers powerful channel switching

Each pedal in Universal Audio’s UAFX series features a special “4-cable” mode accessible via the UAFX Control app, allowing you to bypass your amp’s preamp when the pedal is engaged for incredibly realistic tube-style tones. By hooking your pedal up to both your effects loop send/return and the front of amp input, you can instantly switch between your amp’s stock tone and your UAFX pedal routed straight into the power amp, effectively adding two extra channels to your amplifier. What’s more, Universal Audio designed this feature with multiple pedal setups in mind — you can connect any number of UAFX pedals in this configuration for multi-channel madness!

UAFX Control app

Looking for greater control over your tone? The Ruby ’63 is Bluetooth compatible to pair with Universal Audio’s powerful UAFX app. In addition to giving you greatly enhanced editing options, UAFX also includes access to artist tones, custom presets, and more!

Universal Audio Ruby '63 Top Boost Amplifier Pedal:

  • Authentic end-to-end replication of one of the most iconic 2 x 12-inch British combo amplifiers of the ’60s
  • 3 separate channels including Brilliant, Normal, and Vibrato to run the tonal gamut
  • Deep, harmonic vibrato available on the Vibrato channel
  • Room knob adds some air and ambiance to your signal
  • Boost control for easy breakup, with unique functions on each amp channel
  • 3 separate speaker/cab/mic options for a wide range of different tonal flavors
  • 3 bonus cabs are provided when registering the Ruby ’63
  • 4-cable mode bypasses your amplifier's preamp when the pedal is engaged, giving you 2 more channels to play with
  • USB-C port for firmware updates
  • Bluetooth-compatible for access to Universal Audio’s UAFX app
  • Save and access presets using the right footswitch

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Tech Specs

  • Pedal Type: Amp Emulation, Boost
  • Analog/Digital: Digital
  • Channels: 3
  • Form Factor: Pedal
  • EQ: 2-band EQ, Cut
  • Presets: 1 x Onboard
  • Amp Modeling: 3 x Speaker models, 3 x Cabinet emulations
  • Distortion/Overdrive: Boost
  • Effects: Vibrato
  • Inputs: 2 x 1/4" TS
  • Outputs: 2 x 1/4" TS
  • USB: 1 x USB-C (firmware updates)
  • Bypass Switching: Buffered
  • Features: Mono/Stereo, 4-cable mode, Bluetooth v5.0
  • Software: UAFX Control mobile app
  • Power Source: 9V DC (400mA) power supply (sold separately)
  • Height: 2.56"
  • Width: 3.62"
  • Depth: 5.55"
  • Weight: 1.24 lbs.
  • Manufacturer Part Number: GPM-RUBY

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Customer Reviews

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Rated 5/5

Ruby 63 a! pedalboard Gem

Just love it! Sound, feel, and size, this pedal hits the mark. I highly recommend this pedal if you desire the VOX sound, this is the one. I've Dailey in Voxes on an Axe FX III and I've played through an Iridium and neither gets the realism of a VOX like this.
Music background: Song writer and guitar nerd
Rated 5/5

Almost forgot it wasn't a real amp!!...

Simply Amazing sounding!!! after having a very disappointing experience with another device, I was very skeptical jumping to another thing. Well, after a very meticulous, diligent in Depth, and very educated research I decided to give this pedal a try, and since they seemed very good, I went ahead and got the Dream and Woodrow as well. I connected this pedal to my studio and started setting up my clean amp base tone and it sounded great. Well, the real test came when Sunday morning came and I took it to use it at church since that was the main purpose of getting it, and OM! the sound was ridiculous!! clean, articulate, warm, seriously dynamic, almost real!!! seriously... Just amazing, UA took this amp modeling thing to another level...
Music background: Music producer, Arranger, Composer, MD, professional touring/session guitarist.
Rated 4.5/5

Line 6 Powercab Plus 212 & the RUBY '63.

Running the Ruby '63 into a Line 6 Powercab Plus 212. It's taking a long time to dial something in. I'm getting close, tho. I've tried the Ruby'63 through my DAW in stereo and through the stereo effects return of a Roland JC-40. Still playing with everything and subbing in a Strymon DECO. The Ruby '63 sounds better than my English made Vox AC-30. The pedal has more "air" and control than the actual amp! UA offers free ir cabs if you register your pedal. Excellent quality tone and a ton of tonal options to top bottom. Yes, I also own an Iridium. As a Vox Super-Fan, I wish to offer the Ruby '63 sounds better the the Iridium Vox style tones. FWIW, an old Strat>DECO>Ruby'63 stereo>Powercab, sounds authentic and inspiring. The Iridium is now for sale. I left these comments purposefully general...your mileage may vary.
Music background: I was alive when the Beatles were still together.
Rated 5/5

LIVES UP TO THE HYPE!!

I have a Vox AC30 HW2 with Blue Alnicos. After two years of playing through this amp, I now use the Ruby. I'm a church player, and most weeks I forget that I'm playing through a pedal. I highly recommend this pedal to anyone that is looking for a direct option. Seriously good! (We picked up a second one.)
Rated 5/5

Where was this years ago!

I can't overstate how much of a godsend this pedal is.
Within an hour I was able to dial in perfect jazz tones.
The tones are warm with bright clarity.
Do yourselves a favor...just get.
Music background: Pro
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