Universal Audio UAD Ruby 63 Top Boost Amp

What UAD Ruby '63 Top Boost Amp Is For

UAD Ruby '63 Top Boost Amp is a guitar amp plugin designed to recreate, within your DAW, the response and musicality of a British Top Boost combo that has become a studio reference. It allows direct recording (DI) and then shaping a credible and inspiring sound in seconds, without the constraints of real mic'ing. Whether you're looking for bright arpeggios, punchy rhythms, singing leads, or a "chewy" overdrive full of harmonics, this software aims for the sound of a "golden unit" ready for modern production.

Thanks to its channels, boosts, and cabinet/mic combinations, Ruby '63 caters both to guitarists seeking an immediate sound and producers wanting to layer multiple guitar tracks without losing definition. It's an efficient tool for tracking, re-amping, composing, or sound design, from funk to alternative rock, pop, country, and heavier textures.

Main Features

The Top Boost Character, from choral clean to dense overdrive

The heart of Ruby '63 is the feel of a tube amp that reacts to your playing and guitar volume. Clean sounds remain open, bright, and dynamic, perfect for enriched chords and rhythms that need to "breathe" in the mix. Increasing the gain delivers a progressive overdrive, rich in harmonics, with natural compression that helps leads sit without forcing.

Three channels for three immediate tones

The plugin offers the Normal, Brilliant, and Vibrato channels from the original amp. This approach is ideal for varying presence and attack without changing plugins: Normal for a rounder tone, Brilliant for the famous sparkle and "chime," Vibrato to add classic modulation that brings depth and movement. In production, this also allows doubling a part simply by switching channels to widen the stereo image and perception of width.

Built-in vintage boosts to sculpt bite and density

Ruby '63 includes emulations of historic boosts, directly accessible. The Treble Booster modeled on the Dallas Rangemaster (1960s) is perfect for making a guitar stand out in a busy mix, tightening the low end and enhancing brightness, especially on humbucker pickups. The Maestro EP-3-style preamp (1970s) adds warm coloration and slight thickening, very useful for densifying a rhythm part or adding body to a lead without harshness.

Cabinets and microphones "ready to record," with room sound

To avoid long mic placement sessions, Ruby '63 offers a collection of studio-oriented cabinet/mic configurations with room ambiances to add air and depth. In practice, you can quickly switch from a tight, cutting sound to a wider, livelier texture, which facilitates mix integration, especially when layering multiple takes.

Expert presets for quick start and fine-tuning

The plugin includes presets designed to cover multiple styles (rock, pop, country, funk, etc.). They are perfect for starting a session, finding a coherent base, and recording immediately. Then you can fine-tune channel, boost, and cabinet choice to precisely adapt the response to your guitar, pickups, and arrangement.

Technical specifications

Type

Full software

Downloadable

Yes

Mac	macOS Catalina 10.15, Big Sur 11, Monterey 12, Ventura 13, or Sonoma 14	Presets	collection of expert multi-genre presets
Mac CPU	Intel, AMD, or Apple silicon processor	Silver	2x12 Rare 15W Celestion Silver Bulldog, type 57 mic
Windows	Windows 10 or Windows 11	Blue	2x12 Original Celestion Blue Bulldog, type 57 mic
Windows CPU	Intel or AMD processor	Green	2x12 Modern Celestion G12Hs, type 160 ribbon mic
Channels	Normal, Brilliant, Vibrato	Blue Mod	2x12 Modern Blue Bulldog, type 57 mic
Built-in boosts	Dallas Rangemaster-style Treble Booster (1960s) and Maestro EP-3-style preamp (1970s)	Match	2x12 Celestion G12Hs, type 57 mic
Ambiances	room sound	Gold	1x12 Celestion Gold, type 421 dynamic mic