📘 EarthQuaker Devices manuals • Free online PDFs
EarthQuaker Devices logo

EarthQuaker Devices Manuals & User Guides

EarthQuaker Devices manufactures hand-built guitar and bass effects pedals in Akron, Ohio, known for innovative designs ranging from classic fuzz to experimental modulation.

Tip: include the full model number printed on your EarthQuaker Devices label for the best match.

About EarthQuaker Devices manuals on Manuals.plus

EarthQuaker Devices is a boutique musical electronics manufacturer based in Akron, Ohio, USA. Founded in 2004 by musician Jamie Stillman, the company has grown from a basement operation into a globally recognized brand specializing in hand-crafted effects pedals. EarthQuaker Devices prides itself on building rugged, tour-ready gear with high-quality components and rigorous quality control.

The brand's catalog includes a diverse array of effects, from celebrated fuzz and overdrive circuits—like the Hoof and the Dirt Transmitter—to unique, experimental devices such as the Data Corrupter and Rainbow Machine. Many of their pedals feature proprietary Flexi-Switch® technology, allowing for momentary or latching operation on standard footswitches. EarthQuaker Devices is dedicated to inspiring musical adventures for sonic explorers of all genres.

EarthQuaker Devices manuals

Latest manuals from manuals+ curated for this brand.

EarthQuaker Devices ZEQD-Pre Tube Preamp Pedal Owner’s Manual

January 10, 2026
EarthQuaker Devices ZEQD-Pre Tube Preamp Pedal TECH SPECS Input Impedance............................................. 10 MΩ Output Impedance.........................................Variable Headphone Out Impedance................................ 39 Ω Direct Out Impedance...................................... 100 Ω WARNINGS THIS DEVICE USES VOLTAGES THAT…

EarthQuaker Devices Bit Commander Operation Manual

manual
Operation manual for the EarthQuaker Devices Bit Commander, a monophonic analog guitar synthesizer pedal. Includes power requirements, technical specifications, control descriptions, and suggested settings.

Spatial Delivery User Manual

manual
User manual for the EarthQuaker Devices Spatial Delivery, a voltage-controlled envelope filter pedal. Includes details on modes, controls, and power specifications.

EarthQuaker Devices manuals from online retailers

EarthQuaker Devices video guides

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

EarthQuaker Devices support FAQ

Common questions about manuals, registration, and support for this brand.

  • What power supply should I use for EarthQuaker Devices pedals?

    Most EarthQuaker Devices pedals require a standard 9-volt DC power supply with a 2.1mm negative-center barrel. It is highly recommended to use pedal-specific, transformer-isolated power supplies to prevent noise. Do not use higher voltages unless explicitly stated in the manual.

  • What is Flexi-Switch Technology?

    Flexi-Switch Technology is a relay-based true bypass switching style found on many EQD pedals. It allows you to use momentary and latching switching simultaneously: tap once to toggle on/off, or hold the switch down for momentary activation.

  • What is the warranty on EarthQuaker Devices products?

    EarthQuaker Devices offers a limited lifetime warranty. They will repair or replace any device they manufacture as long as the company is in business and necessary materials are available. Wear-and-tear parts are typically covered for two years.

  • Can I use phantom power with EQD pedals?

    No, generally you should not run phantom power into these devices (especially preamps like the ZEQD-Pre) as they are not designed to handle it and it may cause damage.

  • Where are EarthQuaker Devices pedals made?

    Each EarthQuaker Devices pedal is hand-built in Akron, Ohio, USA.