Universal Audio UAFX Ruby '63 Top Boost Amplifier Pedal
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 modelling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classic vibrato.
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 flavour 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
Specifications:
- Power requirements: Isolated 9VDC, center-negative, 400mA minimum (power supply not included)
- Inputs: 2 x ¼" unbalanced TS (input 2 for stereo connections)
- Outputs: 2 x ¼" unbalanced TS (output 2 for stereo connections)
- Input Impedance: 500 Kilohms (Mono In), 1 Megohms (Stereo In)
- Output Impedance: 500 Ohms
- Maximum Input Level: 12.2 dBu
- Maximum Output Level: 12.1 dBu
- Frequency Response: 20 Hz to 20 kHz, ±3 dB
- USB: Type-C (For registration and firmware updates via computer)
- Wireless Technology: Bluetooth v5
- Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz
- Maximum Output Power: +4.35 dBm
- Dimensions: 3.62" (W) x 5.55" (D) x 2.56" (H) / 9.2cm (W) x 14.1cm (D) x 6.5cm (H) (with knobs and protrusions)
- Weight: 0.567 kg / 1.24 lbs
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Shipping & Returns



Universal Audio UAFX Ruby '63 Top Boost Amplifier Pedal
Universal Audio UAFX Ruby '63 Top Boost Amplifier Pedal
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 modelling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classic vibrato.
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 flavour 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
Specifications:
- Power requirements: Isolated 9VDC, center-negative, 400mA minimum (power supply not included)
- Inputs: 2 x ¼" unbalanced TS (input 2 for stereo connections)
- Outputs: 2 x ¼" unbalanced TS (output 2 for stereo connections)
- Input Impedance: 500 Kilohms (Mono In), 1 Megohms (Stereo In)
- Output Impedance: 500 Ohms
- Maximum Input Level: 12.2 dBu
- Maximum Output Level: 12.1 dBu
- Frequency Response: 20 Hz to 20 kHz, ±3 dB
- USB: Type-C (For registration and firmware updates via computer)
- Wireless Technology: Bluetooth v5
- Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz
- Maximum Output Power: +4.35 dBm
- Dimensions: 3.62" (W) x 5.55" (D) x 2.56" (H) / 9.2cm (W) x 14.1cm (D) x 6.5cm (H) (with knobs and protrusions)
- Weight: 0.567 kg / 1.24 lbs
Original: $1,922.00
-70%$1,922.00
$576.60Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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 modelling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classic vibrato.
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 flavour 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
Specifications:
- Power requirements: Isolated 9VDC, center-negative, 400mA minimum (power supply not included)
- Inputs: 2 x ¼" unbalanced TS (input 2 for stereo connections)
- Outputs: 2 x ¼" unbalanced TS (output 2 for stereo connections)
- Input Impedance: 500 Kilohms (Mono In), 1 Megohms (Stereo In)
- Output Impedance: 500 Ohms
- Maximum Input Level: 12.2 dBu
- Maximum Output Level: 12.1 dBu
- Frequency Response: 20 Hz to 20 kHz, ±3 dB
- USB: Type-C (For registration and firmware updates via computer)
- Wireless Technology: Bluetooth v5
- Transmitted Frequency Range: 2.400 GHz – 2.4835 GHz
- Maximum Output Power: +4.35 dBm
- Dimensions: 3.62" (W) x 5.55" (D) x 2.56" (H) / 9.2cm (W) x 14.1cm (D) x 6.5cm (H) (with knobs and protrusions)
- Weight: 0.567 kg / 1.24 lbs

















