Universal Audio UAFX Ruby 63 Top Boost Amplifier

Universal Audio UAFX Ruby '63 Top Boost Amplifier

Ruby '63 Top Boost Amplifier is a UAFX amp-in-a-box pedal that emulates a "golden unit" 1960s British valve combo, from clean chime to complex overdrive. It reproduces the Normal, Brilliant and Vibrato channels of the original amp, and a Boost switch adds a 1960s Dallas Rangemaster germanium treble booster or the preamp of a 1970s Maestro EP-3 tape delay; speaker swaps are also available.

Speaker cabinet, mic and room tones derived from the OX Amp Top Box let you go direct to a front-of-house mixer or into a DAW; with the cabinet emulation bypassed, the pedal can be used in front of a real amp. The UAFX Control app (Bluetooth or USB) manages presets, footswitch modes and artist tones, with up to four onboard presets plus Live mode, and the rear USB-to-MIDI connection receives preset changes and realtime control of boosts and EQ.

Key features

• Emulation of a 1960s British tube combo with Normal, Brilliant and Vibrato channels
• Treble booster and tape delay preamp boosts, speaker swaps
• Speaker cabinet, mic and room tones derived from the OX Amp Top Box
• Cabinet/mic emulation can be bypassed to use the pedal in front of an amp
• Four onboard amp presets plus Live mode, new footswitch modes
• MIDI over USB for preset changes and realtime control
• UAFX Control app via Bluetooth or USB
• Additional speaker cabinets and mics downloadable at registration

Specifications

• Power: isolated 9 V DC, centre negative, 400 mA minimum (power supply sold separately)
• Inputs: 2 x 1/4" unbalanced TS (input 2 for stereo)
• Outputs: 2 x 1/4" unbalanced TS (output 2 for stereo)
• Bypass: buffered bypass
• Input impedance: 500 kOhm (mono), 1 MOhm (stereo)
• Output impedance: 500 Ohm
• Frequency response: 20 Hz - 20 kHz, +/-1 dB
• USB-C for MIDI, registration, firmware updates and wired app control
• Wireless: Bluetooth 5
• Dimensions (with knobs): 92 x 141 x 65 mm (W x D x H)
• Weight: 0.567 kg