Multi-Effect / Modeler (Vox AC30 Top Boost amp emulator) · $399
The Universal Audio UAFX Ruby '63 Top Boost Amplifier is a digital vox AC30 Top Boost amp emulator pedal based on the amp/cab modeler (DSP), with Volume, Cut, Output, Bass, Treble, Boost (6 knobs); mini toggles: Speaker (Silver/Blue/Green), Alt (amp/store), Channel (bril/norm/vib) controls. Features stereo I/O, MIDI, 4 presets. From $399.
| Category | Multi-Effect / Modeler (Vox AC30 Top Boost amp emulator) |
| Circuit / based on | amp/cab modeler (DSP) |
| Signal | Digital |
| Controls | Volume, Cut, Output, Bass, Treble, Boost (6 knobs); mini toggles: Speaker (Silver/Blue/Green), Alt (amp/store), Channel (bril/norm/vib) |
| Switches | 3 mini toggle switches: Speaker, Alt, Channel |
| Footswitches | 2 |
| Bypass | selectable true bypass / buffered (DSP) |
| True bypass | Yes |
| Presets | 4 |
| MIDI | Yes |
| Stereo | Yes |
| I/O | stereo in, stereo out; 2x 1/4 inch in, 2x 1/4 inch out; USB-C |
| Power | 9V DC |
| Power draw | 400 mA |
| Enclosure | dual footswitch |
| Dimensions | 141 x 92 x 65 mm |
| Weight | 567 g |