4-string · bolt-on · fretless
Boost/cut +/15dB. bridge: ZON. Machined brass. fretless. Fretless -lined, blank or half lined. (no dots on board face), Transparent colors, Solid colors, Left-handed, Black hardware, Hipshot x-tender
| Construction | bolt-on |
| Strings | 4 |
| Body | Two-piece select Alder with figured maple top |
| Neck | Composite |
| Fingerboard | Phenowood |
| Neck Pickup | wide aperture, passive, split humbucking |
| Bridge Pickup | wide aperture, passive, dual coil |
| Controls | Master volume, pickup blend, stacked bass/treble and internal midrange controls |
Artists documented playing the Zon Guitars Sonus 4/2: Adam Duce, Billy Gould, Chris Wolstenholme, Cody Wright, Conner Green, Dick Lövgren, Jeph Howard, John Wetton, Liam Wilson, Max Lavelle, Mel Schacher, Paulo Jr., Robert Trujillo, Tony Choy, Troy Sanders.