Fulltone OCD, (Used)

The Fulltone OCD is an overdrive pedal designed to provide a dynamic, amp‑like response ranging from subtle clean boost to rich, saturated overdrive. It uses MOSFET clipping and a Class A input stage, which makes the pedal highly responsive to picking intensity and guitar volume adjustments, allowing expressive tonal control.

The pedal features three main controls: Volume, which sets the overall output level; Drive, which adjusts the amount of overdrive or distortion; and Tone, which shapes the brightness or darkness of the signal. An additional HP/LP switch modifies the clipping character — High Peak emphasises mid-to-high frequencies for a more aggressive sound, while Low Peak offers smoother, more transparent overdrive with less colouration.

The OCD supports true bypass or an enhanced bypass mode, allowing the user to maintain the integrity of the original signal when the effect is off. Its high-impedance input and buffered output ensure compatibility with a variety of pedals and long cable runs, making it suitable for both simple and complex pedalboard setups.