Electro-Harmonix Metal Muff with Top Boost User Manual

User manual for the Electro-Harmonix Metal Muff with Top Boost pedal, covering controls, operation, battery replacement, and warranty information.


Electro-Harmonix Metal Muff with Top Boost User Manual - cover page
Brand
Electro-Harmonix
Category
Other Electronics
Document type
User Manual
Language
English
Pages
3
File format
PDF
File size
74 KB
Published
06 November, 2026
Updated
06 November, 2026
MD5 checksum
1E7B3F3997C4815CE4A8AA2DFBE38E01

About this manual

This manual provides instructions for the Electro-Harmonix Metal Muff with Top Boost guitar effects pedal. It details the functions of the controls, including Distortion, Bass, Mid, Treble, and Top Boost, as well as the Volume and footswitches. The document explains how to connect the pedal and manage power using a 9-volt battery or an external eliminator.

What's inside

  • Description
  • Controls
  • Operation and Warnings
  • Warranty Information
  • Power
  • Battery Replacement

Specifications

Input Impedance1Mohm
Output Impedance600 ohms
Power Supply9-volt battery or external eliminator
External Power Requirements100 mA
Warranty Periodone year

Frequently asked questions

How do I change the 9-volt battery?

You must remove the 4 screws on the bottom of the METAL MUFF, take off the bottom plate, and then change the battery.

What is the polarity for the 9-volt battery eliminator?

The inner ring must be negative and the outer ring must be positive.

How do I engage the Top Boost feature?

Press the Top Boost footswitch to engage the feature, which will light up the corresponding LED.

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