Source Audio C4 Synth *Free Shipping in the USA*

  • $269.00
    Unit price per 


This pedal is brand new & we offer Free Shipping in the USA!

The C4 Synth unites all the sound creation tools of a classic Eurorack
modular synthesizer and packages them in a compact and easy-to-use
effects pedal for guitar or bass. Out of the box the C4 offers six
dynamic synth tones that range from vintage analog to the thoroughly
modern. It is essentially a modular synth in a small pedal with
unprecedented tracking abilities, lightning-fast response, and countless
sound options. With the addition of the Neuro Desktop Editor (a
free download for Mac and Windows machines) and Mobile App. (for iPhone
and Android) it's easy to browse from the ever-growing library of
highly-inspired presets created by the Source Audio crew and the
expanding community of C4 enthusiasts.

Browse, Burn, and Play

​It’s that easy. When you're ready to explore
beyond the C4's six onboard presets simply jump to the Neuro Desktop's
Cloud tab or the Neuro Mobile App's Browse function and check out all
the available presets created by the Neuro Community and the Source
Audio team. We've got a huge and growing-huger collection of vintage and
contemporary synth effects that are guaranteed to amaze. When you find
that mind-blowing tone that you can't live without, simply click the
BURN icon and upload the preset directly to your C4 - it will be waiting
for you at the next gig.
The Neuro Editing Systems








On the surface, the C4 features a simple 4-knob
interface and a choice of six amazing guitar/bass synthesizer effects -
just plug-in and play. If you want to take things to take things a bit
further, we urge that you connect the C4 to our Neuro Preset Editing
& Browsing tools. The Neuro Mobile App is available for free at the and . The Neuro Desktop Editor is available as a free download for Mac or Windows systems on our . Inside
Neuro you will find the tools to personally create your own synth
utopia. Use the C4’s collection of four parallel voices, three
oscillator wave shapes, ten-plus envelope followers, twenty-plus
modulating filters, distortion, tremolo, pitch shifting, intelligent
harmonization, FM synthesis, two programmable sequencers and more to
dial in that perfect tone.
Let's talk a bit about the history of the C4 Synth. Bob Chidlaw
(Source Audio's Chief Sound Engineer), fueled by his life-long passion
for modular synthesizers, set out to built a powerful synthesizer
machine that would replicate the experience of creating amazing synth
sounds with his own personal Eurorack modular synth. It had to nail the
swelling, buzzing sounds of a real modular behemoth, but it had to live
inside the compact structure of a Source Audio One Series housing. The
C4 is, for all intents and purposes, a modular synth in a box.

Dive into the C4 Neuro Sound Editor - it's good for the soul.

  • Six Preset Positions: Use the C4’s three-position toggle switch and two preset banks to save six easily accessible presets.
  • Growing Library of Published Presets: For
    quick access to a world of great tones, try sampling sounds from a vast
    collection of published presets created by the Source Audio team and
    the ever-growing C4 Neuro Community.
  • Unprecedented Sound Sculpting Options: The
    powerful Neuro Desktop Editor (Free download for Mac and Windows) and
    Neuro Mobile App (iOS and Android) offer maximum sound exploration
    possibilities. Use Neuro’s modular synthesizer inspired editor to create
    custom C4 Synth presets that can be burned directly to the pedal, saved
    to a private cloud based library or shared publically with other
    members of the Neuro Community.
  • Supreme Tracking: If tracking matters to you (and it should), you will be amazed by the lightning quick, imperceptible latency of the C4 Synth.
  • 128 MIDI Accessible Factory Presets – The addition of a third party MIDI controller with USB host provides access to any of the pedal’s 128 Factory presets.​
  • Stereo Inputs and Outputs: Use the Neuro Editor’s panning controls to route each Voice to any location in a full stereo spread.
  • Compact Design
    – The durable, anodized aluminum housing has a small footprint and
    sturdy hardware. Dimensions: L: 4.5 in./11.4cm x W: 2.75 in./7cm x H: 2
    in./5.1cm (including knobs).
  • Universal BypassTM – Select either analog buffered or relay based True Bypass.
  • USB Port
    - Class compliant USB-MIDI allows the C4 to work as a plug-and-play
    device with recording software running on Mac and Windows recording
    software or any third party MIDI controller with USB host. The USB port
    also offers connectivity to the Neuro Desktop Editor providing access to
    deep editing possibilities and pedal firmware updates.
  • External Expression and Tap Tempo Control
    — Use the Control Input jack with the Source Audio Dual Expression
    Pedal (expression control to multiple parameters) or Tap Switch (adjust
    LFO rates on the fly).