| USA | Selling my Source Audio C4 Synth Engine, she’s super diverse, customizab... | $180.00 | |
| USA | Source Audio C4 Synth Guitar/Bass synth pedal. 2020s. Mint condition. Be... | $200.00 | |
| USA | Great pedal! Lots of fun sounds from this one. An industry pinnacle of f... | $210.00 | |
| USA | Source Audio C4 Synth PedalSA249Features:Unprecedented sound-sculpting o... | $209.99 | |
| USA | Never on a pedal board, barely used at all beyond trying it out for a fe... | $200.00 | |
| USA | Source audio c4 synth in excellent condition, hardly ever used. Never ta... | $180.00 | |
| USA | If you know, you know. This thing is crazy powerful and extremely deep. ... | $177.00 | |
| USA | Only used indoors. Velcro on back.
