Detail 01
Normal, Brilliant, and Vibrato channels
They provide clean-headroom, overdriven, and pitch-modulated channel options.
Product detailSKU #1500000375625
Universal AudioUAFX Ruby '63 Top Boost Amplifier Guitar Effects Pedal - Dark Maroon
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1/5
Independent shopping perspective
The Korena take
Ruby '63 puts three amp-channel voices—Normal, Brilliant, and Vibrato—into a compact UAFX pedal. The Normal channel is described with clean headroom, Brilliant adds more complex drive, and Vibrato introduces pitch modulation. Two onboard boost options expand the available gain shaping, while three built-in speaker-cab choices let you alter the cabinet side of the sound. For a pedalboard or recording setup, its paired 1/4-inch inputs and outputs support stereo connections and 4-cable mode; presets and deeper editing are available through the UAFX Control app.
Strong match
Who this is for
- Building Normal, Brilliant, and Vibrato channel changes into a pedalboard-based guitar rig.
- Stereo or 4-cable routing with paired 1/4-inch inputs and outputs.
- Saving custom presets and accessing artist tones through the UAFX Control app.
Consider the trade-offs
When to look elsewhere
- Rigs without an isolated 9VDC, center-negative supply rated for at least 400 mA.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Two 1/4-inch inputs and two 1/4-inch outputs
The right-side jacks are used for stereo connections and 4-cable mode.
Detail 03
UAFX 2.0 firmware
It adds MIDI Program Change preset recall, MIDI CC control, new footswitch modes, Bluetooth updates, and wired USB app control.
Final check
Know before you order
- 01An isolated 9VDC, center-negative 400 mA minimum power supply is required and sold separately.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can Ruby '63 run in stereo?
Yes. Its right output is designated for stereo connections; the right input is also used for stereo and 4-cable mode.
02Can I save presets?
Yes. The UAFX Control app can save and recall presets, and UAFX 2.0 provides 128 presets recallable by MIDI Program Change.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Dark Maroon
3 detailsConnections & power
- Outputs
- 2 x 1/4 inch TS (right output for stereo connections and 4-cable mode)
- Power Requirements
- Isolated 9VDC, center-negative, 400 mA minimum (sold separately)
- Inputs
- 2 x 1/4 inch TS (right input for stereo connections and 4-cable mode)
4 detailsSize & weight
- Depth
- 5.55 inch (14.1 cm)
- Width
- 3.62 inch (9.2 cm)
- Weight
- 1.24
- Height
- 2.56 inch (6.5 cm)
