Pre-Owned EQD Rainbow Machine V2


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Brand: Earthquaker Devices V2

Unleash Sonic Experimentation with the EQD Rainbow Machine

Enter the World of Sonic Exploration

The EQD Rainbow Machine is not your typical effects pedal. It's a polyphonic pitch mesmerizer designed for experimenters, adventurists, and those who love pushing the boundaries of sound. This pedal is not for purists or tone hounds, as it thrives on creating otherworldly and unconventional sounds using modern DSP and digital oscillators. If you're looking for "natural sounds," you won't find them here. Instead, prepare to embark on a sonic journey into uncharted territory.

Unique Dimensions and Flexi-Switch® Technology

With dimensions of 4.65 x 3.65 x 2.25 inches (118 x 93 x 57 mm) including the knobs, the Rainbow Machine is a compact and intriguing addition to your pedalboard. It features Flexi-Switch® Technology, a relay-based, true bypass switching style that allows you to seamlessly switch between momentary and latching style operations. Tap the footswitch once for standard latching operation, or hold it down for momentary use, releasing it to bypass the effect. Please note that this relay-based switching style requires power to pass signal.

Power and Expression Pedal Compatibility

The EQD Rainbow Machine operates on a standard 9-volt DC power supply with a 2.1mm negative center barrel. It's essential to use pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies to ensure clean and noise-free power delivery. The pedal also features an expression jack for pitch control. When an expression pedal is inserted, the Pitch control is defeated, allowing for dynamic pitch modulation. EQD recommends using the Moog EP-2 or EP-3 expression pedals for compatibility with the Rainbow Machine.


  • Dimensions: 4.65 x 3.65 x 2.25 inches (118 x 93 x 57 mm) with knobs
  • Current Draw: 68 mA
  • Input Impedance: 1 MΩ
  • Output Impedance: <1 kΩ
  • Expression Jack: Yes
  • Flexi-Switch® Technology: Yes
  • Power Source: 9V DC power supply (sold separately), 2.1mm negative center barrel, DO NOT RUN AT HIGHER VOLTAGES!



Serial Number: 14575

This pedal works nicely as intended and is in excellent condition, exhibiting only very gentle external wear as can be seen in photos. Box is included. 

*This item ships fully insured with signature required*

Type: Effects