
Anthony Easton
The Source Audio C4 Synth is a compact and versatile effects pedal that integrates the sound creation tools of a classic Eurorack modular synthesizer. It offers six dynamic synth tones, ranging from vintage analog to modern, and features unprecedented tracking abilities and lightning-fast response. The pedal's technical specifications and features are as follows:
- 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 for plug-and-play device with recording
software on Mac and Windows, and for connectivity to the Neuro Desktop Editor
- External Expression and Tap Tempo Control: Control input jack for Source
Audio Dual Expression Pedal or Tap Switch
- Neuro Editor Features: Offers maximum sound exploration possibilities,
including four independent voices, three types of oscillators, envelope
followers, filter effects, LFO wave shapes, programmable sequencers, and MIDI
features
- MIDI Features: Responds to MIDI Program Change (PC) and Continuous
Controller (CC) messages via its mini USB port, with the ability to save up to
128 effect presets and sync LFO rate with external MIDI clock messages
- Power Supply: Includes 9v DC power supply (300mA / Negative Tip)
- Connectivity: Includes 1/8” to 1/4” cable for Neuro Mobile App connection
- Power Consumption: 165mA
- Housing: Brushed anodized aluminum housing
The C4 Synth also offers a growing library of published presets, unprecedented sound sculpting options, supreme tracking, 128 MIDI accessible factory presets, stereo inputs and outputs, and a compact design. Additionally, it comes with the Neuro Desktop Editor and Neuro Mobile App for further customization and sharing of presets within the Neuro Community.
Watch the latest video demos and reviews for the C4 Synth from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.

Below are live Reverb listings for the Source Audio C4 Synth from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.

Brand New
$269

Brand New
$258.07

Brand New
$269

Brand New
$269

Brand New
$353.45

Brand New
$274.98

Excellent
$209

Browse through eBay listings for the C4 Synth compiled in real-time. From vintage finds to brand-new units, see a variety of purchasing options. This automated collection helps you explore deals and find the right pedal at the right price.

New
$189.99

Used
$209.99

Open box
$229.99

Used
$242.10

New
$269.00

New
$269.00

Discover pedals with similar features or sounds to the C4 Synth. This section leverages data to suggest alternatives that complement or expand your pedalboard. Ideal for exploring related sounds or finding a pedal that matches your specific needs.

Pladask Elektrisk
BAKFRAM

BOSS
SY-1000 Guitar Synthesizer

Poly Effects
Digit

Red Witch
Synthotron

Hologram Electronics
Infinite Jets

Lovetone
Ring Stinger

Roland
GR-55

Electro-Harmonix
BASS9 Bass Machine

Rainger FX
Air Space Invader

BOSS
SY-1 Synthesizer

Iron Ether
FMeron

Dedalo
Byte BYT-1 Bass Synth

DOD
Meatbox

Rainger FX
Air Space Invader 2

Red Panda
Bitmap

Pigtronix
Space Rip
Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton