Warm Audio WA-C1-Mod Stereo Chorus and Vibrato Pedal With Depth and Rate Controls

The Warm Audio WA-C1 is a faithful recreation of the iconic BOSS CE-1 Chorus Ensemble, delivering the lush, dimensional modulation that established the classic analog chorus sound. Featuring a real analog bucket-brigade device (BBD) chip and a 100% analog preamp, the WA-C1 produces warm, detailed chorus tones with the responsive feel and natural character associated with vintage modulation pedals.

Expanded Chorus & Vibrato Controls

The WA-C1 expands on the original design with dedicated Depth and Rate controls for both the Chorus and Vibrato sections, providing significantly greater control over the modulation effect. A dedicated Chorus/Vibrato footswitch makes it easy to switch between effects, while a separate bypass footswitch provides convenient hands-free operation. The pedal also includes a preamp Level control, High/Low input sensitivity switch, and Hi-Z input mode for passive instruments such as guitars.

Premium Analog Circuitry & Stereo Output

Built with high-quality solid-state components, the WA-C1 combines its true analog BBD chorus chip with three Texas Instruments premium audio op-amps, 11 standard transistors, three FETs, 19 diodes, and two MOSFETs. Stereo 1/4-inch outputs allow the pedal to create expansive, immersive modulation effects, while the analog preamp adds bite, depth, and natural compression to the signal.

Lush Chorus & Expressive Vibrato

The WA-C1 delivers rich midrange depth and detail for classic chorus sounds, while its Vibrato mode adds speed and movement ranging from subtle pitch wobble to rotary cabinet-style modulation. Its versatile character makes it suitable for funk, fusion, blues, jazz, rock, and other styles requiring expressive modulation. Like all Warm Audio gear, the WA-C1 is meticulously hand-tested and inspected by trained technicians in Austin, Texas, USA.

Product Specifications:

Circuit: 100% Analog

Effect Types: Chorus and Vibrato

Controls: Preamp Level, Chorus Depth, Chorus Rate, Vibrato Depth, Vibrato Rate

Input Sensitivity: High / Low

Hi-Z: On / Off

Footswitches: Effect On/Off, Chorus/Vibrato

Inputs: 1 × 1/4"

Outputs: 2 × 1/4"

Input Sensitivity: 80 mV / 10 mV

Output Level: 315 mV

BBD Chip: Xvive MN3007 Recreation

Op-Amps: 3 × Texas Instruments Premium Audio

ICs: 5

Transistors: 11

FETs: 3

Diodes: 19

MOSFETs: 2

Power Consumption: 800 mW

Current Draw: 90 mA @ 9V

Voltage Operation: Internal Dual DC-DC Conversion

Weight: 1.9 lb.

Dimensions (W × H × D): 6.5 × 3.8 × 1.6 in