Transform your guitar or bass into a fully programmable modular synthesizer.

The C4 Synth by Source Audio unites the sound creation tools of a classic Eurorack modular synthesizer into a compact and intuitive pedal. With four independent voices, three oscillator wave shapes, advanced envelope control, and lightning-fast tracking, the C4 Synth delivers everything from vintage analog tones to futuristic synth textures.

• Four Independent Synth Voices – Assign oscillators, pitch shifting, harmonization, and sequencing for complex layered sounds.

• Three Oscillator Wave Shapes – Choose between Sine, Square, and Saw for diverse synth tones.

• Neuro Editor Compatibility – Customize parameters, store presets, and access a growing library of user-created sounds via the Neuro Desktop Editor & Mobile App.

• Stereo Routing – Independent processing for left and right channels, expanding spatial depth.

• Supreme Tracking & Latency-Free Response – Ensures imperceptible latency for real-time synth playing.

• MIDI Integration – Supports full MIDI functionality, allowing users to access 128 factory presets via an external MIDI controller.

• Selectable Bypass Modes – Choose between relay-based true bypass or buffered bypass, ensuring smooth signal transitions.

• Synth Engines – Modular synthesis with oscillators, filters, distortion, tremolo, pitch shifting, and sequencing.

• Controls – Mix, Frequency, Envelope Speed, Modulation Depth.

• Inputs/Outputs – Stereo In, Stereo Out, MIDI I/O.

• Power Requirements – 9V DC, 200mA.

• Dimensions – 4.5” x 4.5” x 2”