| USA | Source Audio C4 Synth Pedal for guitar and bass features was inspired by... | $199.00 | |
| 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 | 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 | |
| Canada | Used it once or twice but never really put on my pedal board. Great comp... | $219.44 | |
| USA | Great condition! Just decided to go with a Helix, so dont need an extra... | $169.00 | |
| USA | Source Audio C4 synth pedal is in very good condition with normal use. P... | $179.00 | |
| EU | Effect pedal for guitar or bassModular synthesizerFree editor software "... | $264.47 | |
