Quick answer: The Ruby '63 Top Boost Amplifier is an authentic Universal Audio UAFX product. Priced at $399.00, sold brand-new by Victory Musical Instruments, a veteran-owned authorized UA dealer in Miami, FL. Questions? Call 844-687-4208.

British chime and choirboy cleans, in a stompbox. The Universal Audio UAFX Ruby '63 Top Boost Amplifier delivers the unmistakable jangle and bite of the 1963 Vox AC30 Top Boost — the amp that defined the sound of The Beatles, The Edge, Queen, Tom Petty, and a half-century of British guitar tone.

At a Glance

Overview

The Vox AC30 Top Boost is the cornerstone of British guitar tone — chimey, glassy, slightly compressed cleans that become richly harmonic when pushed into overdrive. Ruby '63 captures that sound with UAFX dual-engine processing, two-channel routing (Mic and Instrument channels with separate volumes), the OX Amp Top Box cabinet emulations, and a built-in boost circuit for pushing the amp into legendary AC30 saturation territory.

Key Features

• Authentic 1963 Vox AC30 Top Boost Sound — Choirboy cleans, glassy chime, and complex breakup overdrive.
• Two-Channel Routing — Separate Instrument and Mic channel volumes, just like the original AC30.
• OX Amp Top Box Cabinet/Mic/Room Emulations — Three cabs included, three more at registration. Multiple speaker types and mic options.
• Built-In Boost — Push Ruby into rich AC30 overdrive without an external pedal.
• Onboard Reverb — Authentic spring-style reverb mixed with room ambience.
• Stereo Operation — Two-channel inputs and outputs.
• 4-Cable Mode — Insert effects between preamp and power amp sections.
• Cab Bypass — Use as a Vox-style preamp in front of a real amp.

UAFX 2.0 Features

• Four On-Pedal Presets — Store and recall four complete amp settings via the footswitches; instantly switch between rhythm, lead, clean, and dirty tones.
• MIDI-over-USB — Realtime MIDI control of parameters and preset changes for programmable rigs.
• Improved Bluetooth + USB-to-Mobile — Reliable wireless or hardwired connection to the UAFX Control mobile app.
• UAFX Control App — Audition cabs, mics, rooms, presets, and artist signature sounds; archive your favorites to the cloud.

Specifications

• Power — Isolated 9V DC, 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 — USB Type-C for firmware updates and MIDI-over-USB.
• Wireless — Bluetooth for UAFX Control mobile app connection.
• Dimensions — 2.56" x 3.62" x 5.55" (65 x 92 x 141 mm).
• Weight — 1.24 lbs.

Why a Ruby '63?

The Vox AC30 is the answer when other amps sound too American — when you need that distinctive British compression, sparkle, and harmonic chime that defines bands from The Beatles and The Who to U2 and Radiohead. The Ruby '63 puts that sound on your pedalboard, eliminating the need to transport a delicate 60-year-old amp to gigs while delivering studio-grade cabinet and mic emulation direct from UA's OX modeling research.

What's in the Box

• UAFX Ruby '63 Top Boost Amplifier pedal
• Quick start guide
• Note: 9V isolated power supply (minimum 400 mA) sold separately

Frequently Asked Questions

What power supply does this UAFX pedal need?

It runs on a standard 9V DC center-negative power supply (larger UAFX models need a higher-current supply). Check the box contents listed above to see whether a power supply is included with this model.

Is it true bypass, and does it work in stereo?

UAFX pedals offer switchable true or buffered bypass via the free UAFX Control app, and stereo-capable models accept and output stereo through their TRS or dual jacks.

Do I need the UAFX Control app to use it?

No, the pedal works standalone right out of the box. The free UAFX Control app (mobile and desktop) is optional and unlocks extra presets, alternate models, and deeper settings.

What's included in the box?

Your purchase includes: UAFX Ruby '63 Top Boost Amplifier pedal, Quick start guide.

Is the Ruby '63 Top Boost Amplifier a genuine Universal Audio product?

Yes. Victory Musical Instruments is a veteran-owned, authorized Universal Audio dealer based in Miami, FL. Every unit is brand-new, factory-sealed, and covered by the full UA manufacturer warranty.

Can I get help choosing or setting it up?

Absolutely. You'll talk to real people, not a call center. Call us at 844-687-4208 and we'll help you spec the right gear and get it running.

Why Buy from Victory Musical Instruments

Victory Musical Instruments is a veteran-owned authorized retailer in Miami, FL. Whether you're outfitting a home studio, a college program, or a worship room, we'll help you spec the right gear and stand behind the sale. Save through our ID.me military discount program — active duty, veterans, reservists, and eligible family.