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Ruby '63 Top Boost Amplifier

$499 MSRP

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Ruby '63 Top Boost Amplifier

4.4 (17)

Get the British Invasion tones that inspired generations.

  • Get 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
  • Download artist tones, customize features, explore presets, and more with UAFX mobile app

Get the UAD Guitar Amp Bundle for FREE with select purchase! Ends 4/30.

Details & Downloads

Downloads

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
  • 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.

Compare Models

3 Amps / 6 Cabs

Stereo 1/4"

$499

$499

$499

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

Reviews

4.4
Rated 4.4 out of 5 stars
Based on 17 reviews
Total 5 star reviews: 12 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 1
82%would recommend this product
17 reviews
  • FF
    F. F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Ruby ’63 – Absolutely Amazing Tone!

    I never thought a pedal could capture the essence of a vintage amp so well, but the Ruby ’63 blew me away! The tone is incredible—warm, dynamic, and perfect for professional recordings. I used it on an EP, and it added that magical touch I was looking for. A must-have!

  • MW
    M. W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    A great replica of the original.

    I own the corresponding originals for both the Dream and the Ruby, but of different years: a Fender Deluxe Reverb from 1979 and a Vox AC-30 from the 90s.

    So far I have not found a better simulation of these amps either in pedal form or as a plugin. T

    The playing feel is authentic and the sound in the mix is ​​indistinguishable from the original. On one of the last productions I didn't mike the amps and just used the pedals. The result has a lot of character and punch an is easy to mix.

    Live at smaller locations I use the pedals and otherwise the amps with the pedals as a backup. Great.

  • MK
    M. K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    All the great sounds are the. And it feels real.

    My first amp when I started to play electric guitar in 1975 was a 1964 Vox AC30 top boost. I’ve had two more since and I have two AC15 HW now. And I use treble boosters, Rangemaster and Hornby-Skewes.

    The Ruby sounds ridiculously good; when I play in the control room it sounds - and feels - like those amps I am used to. All the classic great sounds are there; The Beatles’, Rory Gallagher’s, Status Quo’s, Ritchie Blackmore’s, Brian May’s and even the great Brad Paisley’s AC30 sound. To name a few. And the treble booster adds good heft!

    And so easy to dial them in and go along in the studio; I just connect both outputs to my Apollo’s line in on the back and use an appropriate Unison preamp, e.g. a Helios 69.

    I hard pan the channels and use the Ruby’s Room control and the sound is glorious!

    Ni hassle!

    I’ve always loved the vibrato channel on my AC30s but the speed settings where quite rudimental, on the Ruby I can dial in any speed and intensity. Great UA, thank you!

  • RM
    R. M.
    I do not recommend this product
    Rated 2 out of 5 stars
    1 year ago
    Sounds incredible, terribly unreliable

    Same thoughts as I have with the Dream65. Best sounding amp sim I’ve ever played. However it’s also the most unreliable guitar pedal I’ve ever owned and the UX was not given much thought. It’s a shame.

  • AB
    A. B.
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    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 particular - own a boutique amp from British company Audio Kitchen called the Big Trees (which is based on Vox sounds) that my main clean sound comes from. I play it with my Fender Telecaster through custom Celestion green speaker and the combination is truly beautiful.

    I only started looking at this pedal as I'm finding myself in situations now where I'm being asked to play at venues that require very quick, minimalist setups - and setting up and micing my amp combo is considered too time-consuming, complex (sigh).

    I watched the Ruby '63 videos hoping to get some idea of how good the clean sound was... but most of them just showcase the classic Brian May overdriven sounds Vox is known for.

    So I popped down to my local guitar pedal store and asked to try it out... After some tweaking - suddenly there is was.... MY CLEAN SOUND - BIG TREES COMBINED WITH GREEN SPEAKER!!! It even responds like the amp when you hit the strings a bit harder - producing some beautiful break-up.

    I'm blown-away... I honestly didn't think it would be THIS GOOD. It won't be replacing my Big Trees / Vox amp for things like studio recordings but for the unique live setup situations (or needing to play through headphones late at night) it's perfect and will be used for many years to come.

    I'm giving it 5 of 5 - the…

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.

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Note that Ruby '63 Top Boost Amplifier requires a modern 400 mA isolated power supply (sold separately).

*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 Boost Amplifier.