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User Manual for Electro-Harmonix PITCH FORK+ Polyphonic Pitch-Shifter/Harmony Pedal

Comprehensive user guide for the Electro-Harmonix PITCH FORK+ pedal. Learn how to connect, configure pitch-shifting engines, manage presets, and use expression pedals or external controllers.

Table of contents

Quick Start Guide

To begin using your PITCH FORK+, follow these steps:

  • Power: Connect the included EHX 9.6VDC/200mA power supply to the 9V jack. The pedal requires at least 120mA.
  • Connections: Connect your instrument to the INPUT jack and your amplifier to the MAIN OUTPUT jack using standard 1/4 inch instrument cables.
  • AUX Output: If using a second amplifier, connect it to the AUX OUTPUT jack.
  • Expression/Controller: Connect an expression pedal to the EXP jack or an external 3-button foot controller to the EXT jack using TRS cables.

Controls and Display

The pedal features several controls for shaping your sound:

  • Knobs: DRY, SHIFT 1, and SHIFT 2 control the volume levels of their respective signals. The VALUE knob is a rotary encoder used to adjust parameters, enter sub-menus, and save presets.
  • Display: The 4-character display shows current parameter values. A dot in the lower right corner indicates that a sub-menu is available; press the VALUE knob to enter it.
  • Footswitches: The BYPASS footswitch toggles the effect on/off. The USER footswitch is programmable and works independently.

Overview of Modes

The PITCH FORK+ has eight modes accessed via illuminated buttons:

  • AUX: Selects which channels are sent to the AUX output and configures how the BYPASS footswitch affects it.
  • SHIFT 1 & 2: Sets the transposition amount for each shift engine (up to +/- 3 octaves) and allows for detuning.
  • EXP: Configures how an expression pedal or control voltage signal affects pitch (FREQ), glissando (GLIS), or volume (VOL).
  • USER: Programs the function of the USER footswitch.
  • X-MOD: Accesses cross-modulation settings for ring modulation and FM-style effects.
  • PRESET: Manages loading and saving of presets.
  • LATCH: Configures the BYPASS footswitch for latching or momentary operation.

Preset Management

The pedal includes 100 preset slots. To load a preset, enter PRESET mode, scroll with the VALUE knob, and press it to load. To save, select an empty slot, adjust your settings, and press and hold the VALUE knob for two seconds until the PRESET LED stops blinking. The LIVE template is available before slot 1 for creating new sounds.

External Control

The EXT jack supports external 3-button foot controllers (e.g., EHX Triple Foot Controller or Digitech FS3X). These allow you to cycle through modes, enter/exit sub-menus, load presets, and scroll through parameter values using the MODE, UP, and DOWN footswitches.

Practical help

Common problems

Preset not saving

Ensure you press and hold the VALUE knob for two seconds until the PRESET LED stops blinking.

Expression pedal not working

Ensure you are using a TRS cable and that the pedal conforms to the 10k potentiometer/linear taper standard.

AUX output not working

Check the AUX mode settings to ensure the correct channels are routed to the AUX output and that the BYPASS settings are configured correctly.

Before use

  • Use the included 9.6VDC / 200mA power supply.
  • Ensure the power supply is center-negative.
  • Connect your instrument to the INPUT jack using a 1/4 inch cable.
  • Connect the MAIN OUTPUT to your amplifier.

Specs in practice

Input Impedance
2.2MΩ
Output Impedance
470Ω
Power Requirement
9VDC, 120mA minimum

Model compatibility

  • Supports expression pedals with 10k potentiometer and linear taper.
  • Compatible with external 3-button foot controllers like EHX Triple Foot Controller or Digitech FS3X.

Manual page author

David Miller

Documentation analyst

Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.