Electro-Harmonix Green Russian Big Muff - User Manual

GREEN RUSSIAN
Kongratulations Komrades!
You now have in your possession the authentic reissue of the legendary Green
Russian Big Muff Pi. We should know, we built the original. Now you’ve got the exact
same sound beloved by guitarists and bassists alike at your fingertips, but in a
smaller, more pedalboard-friendly enclosure. So, throw off your chains and unite with
the finest harmonic distortion-sustain device ever made.
OPERATING INSTRUCTIONS
VOLUME Knob
Use the VOLUME knob to set the output level.
TONE Knob
Adjust the TONE knob to explore a range of sounds from high treble to deep bass.
Turn the knob clockwise to increase treble and decrease bass. Turn the knob
counterclockwise to increase bass and decrease treble.
SUSTAIN Knob
The SUSTAIN knob adjusts the amount of sustain and distortion.
Footswitch & Status LED
Use the footswitch to toggle between effect and bypass. The Green Russian Big Muff
is active when the LED is lit. When the LED is off, the pedal is in true bypass mode.
IN Jack
Plug the output of your instrument or another effects pedal into the ¼” IN jack. The
input impedance presented at this jack is 130kΩ.
OUT Jack
Connect the Green Russian Big Muff’s ¼” OUT jack to the input of your amplifier or
another effects pedal. When the Green Russian Big Muff is in bypass mode, the OUT
jack is connected directly to the IN jack. The output impedance is nominally 25kΩ.
POWER!
Powering the Green Russian Big Muff Pi
The Green Russian Big Muff Pi may be powered from a 9V battery or an optional
9VDC AC Adapter such as the EHX9.6DC-200 or any Boss
®
or Ibanez
®
style AC
adapters capable of delivering at least 30mA. Plug the output of the adapter into the
9V power jack located at the top of the pedal. The battery may be left in or taken out
when using an AC Adapter. The current draw is approximately 2.2mA at 9VDC.
Please Note: Using the wrong adapter or a plug with the wrong polarity
may damage your Russian Big Muff Pi and void the warranty.
Changing the Battery
To change the 9V battery, remove the 4 screws on the bottom of the Green Russian
Big Muff Pi. Take off the bottom plate and change the battery. Avoid touching the
circuit board while the bottom plate is off. Replace the bottom plate and screws.
WARRANTY INFORMATION
Please register online at http://www.ehx.com/product-registration or complete and
return the enclosed warranty card within 10 days of purchase. Electro-Harmonix will
repair or replace, at its discretion, a product that fails to operate due to defects in
materials or workmanship for a period of one year from date of purchase. This
applies only to original purchasers who have bought their product from an authorized
Electro-Harmonix retailer. Repaired or replaced units will then be warranted for the
unexpired portion of the original warranty term.
If you should need to return your unit for service within the warranty period, please
contact the appropriate office listed below. Customers outside the regions listed
below, please contact EHX Customer Service for information on warranty repairs at
info@ehx.com or +1-718-937-8300. USA and Canadian customers: please obtain a
Return Authorization Number (RA#) from EHX Customer Service before returning
your product. Include  with your returned unit  a written description of the problem
as well as your name, address, telephone number, e-mail address, RA# and a copy of
your receipt clearly showing the purchase date.
United States & Canada Europe
EHX CUSTOMER SERVICE JOHN WILLIAMS
ELECTRO-HARMONIX ELECTRO-HARMONIX UK
c/o NEW SENSOR CORP. 13 CWMDONKIN TERRACE
47-50 33RD STREET SWANSEA SA2 0RQ
LONG ISLAND CITY, NY 11101 UNITED KINGDOM
Tel: 718-937-8300 Tel: +44 179 247 3258
Email: info@ehx.com Email: electroharmonixuk@virginmedia.com

Summary

OPERATING INSTRUCTIONS

VOLUME Knob Control

Sets the audio output level of the effect pedal.

TONE Knob Sound Shaping

Adjusts the tonal response from treble to bass.

SUSTAIN Knob Distortion

Controls the amount of sustain and distortion.

Footswitch and Status LED

Toggles effect on/off; LED indicates active or bypass mode.

Input (IN) Jack Connection

Connects instrument or other pedals; 130kΩ input impedance.

Output (OUT) Jack Connection

Connects to amplifier or pedals; 25kΩ output impedance.

POWER SUPPLY AND BATTERY

Device Powering Options

Powers via 9V battery or 9VDC AC adapter; notes on compatibility and current draw.

Changing the 9 V Battery

Procedure for replacing the internal 9V battery.

WARRANTY AND SUPPORT

Warranty Registration and Policy

Details on one-year warranty, registration, and repair terms.

Customer Service Contact Info

Provides contact details for EHX service in US/Canada and Europe.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Electro-Harmonix Green Russian Big Muff Pi is an authentic reissue of the legendary Green Russian Big Muff Pi, designed to deliver the same beloved harmonic distortion and sustain sound in a smaller, pedalboard-friendly enclosure. It is suitable for both guitarists and bassists.

Function Description

The Green Russian Big Muff Pi is a distortion-sustain device that allows users to shape their sound from high treble to deep bass, with adjustable levels of sustain and distortion. It features true bypass mode, ensuring that the instrument's signal remains unaffected when the pedal is disengaged.

Important Technical Specifications

• Input Impedance: 130kΩ at the IN jack.
• Output Impedance: Nominally 25kΩ at the OUT jack.
• Power Requirements:
  • 9V battery.
  • Optional 9VDC AC Adapter (such as EHX9.6DC-200 or any Boss® or Ibanez® style AC adapters) capable of delivering at least 30mA.
• Current Draw: Approximately 2.2mA at 9VDC.
• Bypass Mode: True bypass.

Usage Features

The pedal features three main control knobs and a footswitch with an LED indicator:

• VOLUME Knob: This knob controls the overall output level of the pedal. Turning it clockwise increases the volume, while turning it counterclockwise decreases it.
• TONE Knob: This knob allows for exploration of a wide range of sounds, from bright, cutting treble to warm, deep bass.
  • Turning the TONE knob clockwise increases treble and decreases bass.
  • Turning the TONE knob counterclockwise increases bass and decreases treble.
• SUSTAIN Knob: This knob adjusts the amount of sustain and distortion applied to the signal. Increasing the SUSTAIN knob clockwise will result in longer sustain and more pronounced distortion.
• Footswitch & Status LED:
  • The footswitch is used to toggle the pedal between its effect mode and bypass mode.
  • When the LED is lit, the Green Russian Big Muff Pi is active, and the effect is engaged.
  • When the LED is off, the pedal is in true bypass mode, meaning the instrument's signal passes through unaffected.
• IN Jack: This 1/4" jack is where the output of your instrument or another effects pedal should be connected.
• OUT Jack: This 1/4" jack should be connected to the input of your amplifier or another effects pedal. In bypass mode, the OUT jack is directly connected to the IN jack, maintaining signal integrity.
• Power Jack: Located at the top of the pedal, this 9V power jack is used for connecting an optional AC adapter. The 9V battery can remain in or be removed when using an AC adapter.

Maintenance Features

• Battery Replacement:
  • To change the 9V battery, remove the four screws located on the bottom plate of the pedal.
  • Carefully lift off the bottom plate.
  • Replace the old 9V battery with a new one.
  • It is important to avoid touching the circuit board while the bottom plate is off to prevent damage.
  • Once the new battery is in place, replace the bottom plate and secure it with the four screws.
• Power Adapter Usage:
  • Always ensure that any AC adapter used is a 9VDC adapter capable of delivering at least 30mA.
  • Crucially, verify that the adapter has the correct polarity. Using an adapter with the wrong voltage or polarity can damage the Green Russian Big Muff Pi and void its warranty.
• Warranty Information:
  • The product comes with a one-year warranty from the date of purchase, covering defects in materials or workmanship for original purchasers from authorized Electro-Harmonix retailers.
  • To register the product for warranty, visit http://www.ehx.com/product-registration or complete and return the enclosed warranty card within 10 days of purchase.
  • For service under warranty, customers in the USA and Canada must first obtain a Return Authorization Number (RA#) from EHX Customer Service.
  • When returning a unit for service, include a written description of the problem, your name, address, telephone number, e-mail address, the RA#, and a copy of your purchase receipt clearly showing the purchase date.
  • Customers outside the listed regions should contact EHX Customer Service at info@ehx.com or +1-718-937-8300 for warranty repair information.
  • Repaired or replaced units will be warranted for the unexpired portion of the original warranty term.

Electro-Harmonix Green Russian Big Muff Specifications

General

Brand	Electro-Harmonix
Model	Green Russian Big Muff
Category	Music Pedal
Language	English