📘 Electro-Harmonix manuals • Free online PDFs
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Electro-Harmonix Manuals & User Guides

Electro-Harmonix (EHX) is a legendary NYC-based manufacturer of guitar effects pedals and vacuum tubes, famous for the Big Muff Pi and Memory Man.

Tip: include the full model number printed on your Electro-Harmonix label for the best match.

Electro-Harmonix manuals

Latest manuals from manuals+ curated for this brand.

EHX HOLY GRAIL Reverb User Manual

EHX HOLY GRAIL Reverb User Manual

December 17, 2021
EHX HOLY GRAIL Reverb HOLY GRAIL Reverb Congratulations on your purchase of the Holy Grail. The small enclosure insures a pedal board friendly fit while delivering a superb reverb prized…
EHX Nano Q-Tron Envelope Filter User Guide

EHX Nano Q-Tron Envelope Filter User Guide

December 17, 2021
EHX Nano Q-Tron Envelope Filter Nano Envelope Filter Congratulations on your purchase of the Nano Q-Tron envelope-controlled filter! An envelope-controlled filter modulates an instrument’s tone based on the musician’s dynamics…
EHX The Worm Analog Modulation Pedal User Guide

EHX The Worm Analog Modulation Pedal User Guide

December 17, 2021
EHX The Worm Analog Modulation Pedal The Worm Analog Modulation Pedal Congratulations on your purchase of The Worm, a multi-functional modulation pedal. The Worm is four analog effects in one:…
EHX Big Muff Pi With Tone Wicker User Guide

EHX Big Muff Pi With Tone Wicker User Guide

December 17, 2021
EHX Big Muff Pi With Tone Wicker BIG MUFF PI WITH TONE WICKER With Enhanced Tone Processing Congratulations on your purchase of the BIG MUFF Pi with TONE WICKER! The…
EHX Deluxe Bass Big Muff Pi User Guide

EHX Deluxe Bass Big Muff Pi User Guide

December 17, 2021
EHX Deluxe Bass Big Muff Pi Congratulations! You have just purchased the ultimate harmonic distortion-sustain device developed to date for the electric bass guitar player: the Deluxe Bass Big Muff…
EHX Deluxe Big Muff Pi User Guide

EHX Deluxe Big Muff Pi User Guide

December 17, 2021
EHX Deluxe Big Muff Pi Congratulations! You have just purchased the ultimate harmonic distortion-sustain device developed to date for the electric guitar player: the Deluxe Big Muff Pi! We started…
EHX Frequency Analyzer Ring Modulator User Guide

EHX Frequency Analyzer Ring Modulator User Guide

December 17, 2021
EHX Frequency Analyzer Ring Modulator Congratulations! You have just purchased one of the most sophisticated and unusual musical accessories ever designed. OPERATING INSTRUCTIONS Your unit comes with a 40volt/100ma tip…
Electro-Harmonix Pico Shimmer User Manual

Electro-Harmonix Pico Shimmer User Manual

manual
Official user manual for the Electro-Harmonix Pico Shimmer cosmic reverb pedal. Includes setup instructions, control definitions, secondary knob functions, bypass mode configuration, and factory reset procedures.

Electro-Harmonix manuals from online retailers

Electro-Harmonix 6973 Vacuum Tube Instruction Manual

Electro-Harmonix 6973 Vacuum Tube Instruction Manual

Ele-9183 • December 25, 2025
Instruction manual for the Electro-Harmonix 6973 vacuum tube, providing details on installation, operation, maintenance, troubleshooting, and specifications for amplifier applications.

Electro-Harmonix video guides

Watch setup, installation, and troubleshooting videos for this brand.