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Ruby '63 Top Boost Amplifier

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Ruby '63 Top Boost Amplifier
Ruby '63 Top Boost Amplifier
Ruby '63 Top Boost Amplifier
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Ruby '63 Top Boost Amplifier

Get the British Invasion tones that inspired generations.

Get Paradise Guitar Studio for FREE! Ends 8/31. Details

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  • Play through the valve amp that powered the British Invasion, perfectly emulated in a stompbox
  • Stay inspired with rich Top Boost tones and tube-powered vibrato
  • Take ace studio amp tones anywhere, complete with legendary mic/speaker pairings and famous boost effects
  • Get MIDI control*, improved Bluetooth and hardwired connections, and new footswitch modes with four amp presets at the ready using updated UAFX Control app
Downloads & Details

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Details

  • Powerful UAFX dual-engine delivers the most authentic '60s British tube combo sound ever placed into a stompbox
  • Includes the world's best speaker cabinet, mic, and room tones derived from the award-winning OX Amp Top Box
  • Features "hot rod" treble booster, preamp boost, and speaker swaps, plus free additional downloadable speaker cabinets and mics upon registration
  • Bypass cabinet/mic emulations and use in front of your amp for added tonal flavor and overdrive sounds
  • UAFX mobile app lets you customize footswitches, recall and archive your presets, unlock additional features, download artist presets, and more
  • Supports MIDI-over-USB*, improved Bluetooth and hardwired connections, and new footswitch modes with four onboard amp presets via the updated UAFX Control app
  • Timeless UA design and craftsmanship, built to last decades

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.

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***.

Expand your Sounds with MIDI

Using its rear panel USB-to-MIDI connection, Ruby '63 drops straight into any programmable MIDI rig, receiving preset changes and realtime control of boosts, EQ, and more*.

Learn More ›

Powerful App Control with Hardwired or Bluetooth Connection

The UAFX Control app gives you deep tone shaping for your Ruby '63. Customize, save, and manage presets, load artist tones, and set new footswitch modes — with up to four onboard presets plus Live Mode — all with a rock-solid Bluetooth connection.

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What They Say

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 studio board!

David Ryan Harris

John Mayer, Dave Matthews, Santana

UAFX pedals have truly recreated classic analog effects of the past, and made them better.

Butch Walker

Green Day, Weezer, Taylor Swift

The rich sound quality of UAFX pedals inspire you to play guitar.

Butch Walker

Green Day, Weezer, Taylor Swift

UA Studio Sessions

Frequently Asked Questions

UAFX pedals require an isolated 9 volt DC, center negative, 2.1 x 5.5 mm barrel connector (same as standard Boss connectors) power supply that can provide the following current requirements: Full-sized UAFX pedals (with two footswitches) require 400 mA (milliamps) of current; Compact UAFX pedals (with a single footswitch) require 250 mA (milliamps) of current
Connect the pedal using a USB-C cable to your compatible computer, and run the UA Connect application to update your firmware.
You can register your pedal with the UA Connect desktop app or the UAFX Control mobile app.
Dual footswitch UAFX pedals have Bluetooth, and you can download the UAFX Control mobile app from the Apple App Store or Google Play Store, to connect to your pedals and access additional functionality.
Each UAFX pedal has unique functionality. We recommend carefully reading the accompanying manual for each pedal here.
Check our Knowledge Base for additional questions

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