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UAFX Ruby '63 Top Boost Amplifier

UAFX Ruby '63 Top Boost Amplifier

UAFX Ruby '63 Top Boost Amplifier

UAFX Ruby '63 Top Boost Amplifier

Ariel Posen Doesn't Need a "Real" Amp to Melt Faces | UAFX Pedal Sessions

Ariel Posen Doesn't Need a "Real" Amp to Melt Faces | UAFX Pedal Sessions

Universal Audio

Description

Ruby '63 is the only stompbox that provides the Normal, Brilliant and Vibrato channels that defined the British Invasion. From the clean headroom of Normal to the complex overdrive of Brilliant, to the pitch modulation of Vibrato, Ruby '63 lets you conjure any era of British rock with ease.

Vintage Boosts on Demand

Ruby '63 packs prized British 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 layered lead tones that leave IR-based modelers wanting.

Tailor Your Tone With Legendary Speakers

With built-in mic and speaker pairings from Universal Audio's award-winning OX Amp Top Box, Ruby '63 lets you tailor your classic Brit amp tones. Choose from three speaker cabs—silver, blue and green with the Ruby '63.

Customize Your Sound With the UAFX App

Ruby '63 really comes alive with the UAFX Control mobile app. Download custom artist tones, save and recall your presets, and dive deeper into the amp that powered British rock royalty.

UAFX 2.0 Firmware Update

As of November 11, 2025, the UAFX 2.0 firmware update delivers a major performance upgrade to Universal Audio’s two-button pedals, unlocking deep MIDI integration, enhanced footswitch control, and streamlined app connectivity. Players can now select from four new footswitch modes—Live/Preset AB, A/Bypass + B/Bypass (Tour Mode), A/B–C/D, and Boost + Live/Preset—ideal for live "channel-switching" workflows. The update introduces 128 recallable presets via MIDI Program Change, real-time parameter control through MIDI CC messages, and MIDI beat clock sync for time-based effects including the Starlight Echo Station, Astra Modulation Machine, Galaxy ’74 Tape Echo & Reverb, and Del-Verb Ambience Companion. Bluetooth connectivity has been rebuilt from the ground up for increased reliability, while a new wired USB connection enables direct app control from iOS or Android devices. USB MIDI support further enhances expression, preset switching, and clock sync capabilities, making it easier than ever to integrate UAFX pedals into modern performance rigs. All updates are free and compatible exclusively with dual-footswitch UAFX models.

The Universal Audio UAFX Ruby '63 top boost amplifier effects pedal delivers the inspiring tones of a vintage 2x12 tube combo amp and more. Built on powerful dual-engine processing and UAD modeling, Ruby '63 gives you Normal, Brilliant and Vibrato channels—all in a rugged pedalboard-friendly stompbox. Whether replacing your amp rig live or recording tracks in the studio, Ruby '63 lets you fly from mellow to chime to grind with the flip of a switch.
Universal Audio UAFX Ruby '63 Top Boost Amplifier Effects Pedal - Dark Maroon
Universal Audio UAFX Ruby '63 Top Boost Amplifier Effects Pedal - Dark Maroon
Universal Audio UAFX Ruby '63 Top Boost Amplifier Effects Pedal - Dark Maroon

Features

  • 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
  • Timeless UA design and craftsmanship, built to last decades

Specs

  • Power requirements: Isolated 9VDC, center-negative, 400 mA minimum (sold separately)
  • Inputs: 2 x 1/4" TS (right input for stereo connections and 4-cable mode)
  • Outputs: 2 x 1/4" TS (right output for stereo connections and 4-cable mode)
  • USB Type-C for updates via computer
  • Height: 2.56" (6.5 cm)
  • Width: 3.62" (9.2 cm)
  • Depth: 5.55" (14.1 cm)
  • Weight: 1.24 lb. (0.567 kg)

Warranty

One year parts and labor warranty on all U.A. products and Kind of Loud products.

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