EHX METAL MUFF with TOP BOOST User Guide
- June 6, 2024
- EHX
Table of Contents
EHX METAL MUFF with TOP BOOST
DESCRIPTION
Congratulations on your purchase of the METAL MUFF with TOP BOOST! Electro- Harmonix gave its total effort to design the best heavy metal pedal ever built. The Metal Muff utilizes three powerful EQ bands, including a midrange control designed for perfect contouring and beautifully sculpted mids. The Metal Muff offers commanding bass and defined high end—coupled with user- controlled distortion from pinched-edge to totally crushing—making it a heavy metal gold mine.
CONTROLS
DISTORTION CONTROL
adjusts the amount of input gain.
BASS CONTROL
provides up to 14dB of cut and boost in the bass frequency range.
MID CONTROL
provides up to 15dB of cut and boost in the middle frequency range.
TREBLE CONTROL
provides up to 10dB of cut and boost in the treble frequency range.
TOP BOOST CONTROL
provides an extra ‘bite’ by boosting a narrow band of high frequencies. When
Top Boost is inactive, the Top Boost control has no effect.
VOLUME CONTROL
sets the output level.
TOP BOOST FOOTSWITCH
Engages the TOP BOOST feature of the METAL MUFF. The corresponding LED is lit
when TOP BOOST is engaged.
BYPASS FOOTSWITCH
Selects whether the METAL MUFF is engaged or bypassed. The corresponding LED
will be lit when the pedal is engaged, and dark when bypassed.
INPUT Jack
This ¼” jack is the audio input to the METAL MUFF.
OUTPUT Jack
This ¼” jack is the audio output from the METAL MUFF. When the METAL MUFF is
in Bypass mode, the OUTPUT jack is connected to the INPUT jack through a
buffer.
OPERATION AND WARNINGS
Power, from the internal 9-volt battery or external battery eliminator, is activated by plugging into the input. The input cable should be removed when the unit is not in use to avoid running down the battery. The input impedance presented at the Input Jack is 1Mohm. The output impedance at the Output Jack is 600 ohms.
The barrel connector on the front of the METAL MUFF is for a 9-volt battery
eliminator capable of delivering 100 mA of current. The inner ring of the
9-volt battery eliminator must be negative, the outer ring positive. The
unit’s battery may be left in or taken out when the eliminator is in use.
To achieve its biting distortion, the METAL MUFF has very high maximum gain.
This requires that both the pickups and cables be well shielded and properly
grounded to avoid excessive hum when high sustain control settings are used.
To change the 9-volt battery, you must remove the 4 screws on the bottom of
the METAL MUFF. Once the screws are removed, you can take off the bottom plate
and change the battery. Please do not touch the circuit board while the bottom
plate is off or you may damage a component.
The optional 9V power supply from Electro-Harmonix is US96DC-200BI (same as
used by Boss ™ & Ibanez™) 9.6 volts/DC 200ma. The barrel connector on the
front of the METAL MUFF is for the 9-volt battery eliminator capable of
delivering 100 mA of current. The inner ring of the 9-volt battery eliminator
must be negative, the outer ring positive. The unit’s battery may be left in
or taken out when the eliminator is in use.
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, and RA#; and a copy of your receipt clearly showing the purchase date.
United States & Canada
EHX CUSTOMER SERVICE
ELECTRO-HARMONIX
c/o NEW SENSOR CORP.
47-50 33RD STREET
LONG ISLAND CITY, NY 11101
Tel: 718-937-8300
Email: info@ehx.com
Europe
JOHN WILLIAMS
ELECTRO-HARMONIX UK
13 CWMDONKIN TERRACE
SWANSEA SA2 0RQ
UNITED KINGDOM
Tel: +44 179 247 3258
Email:
electroharmonixuk@virginmedia.com
This warranty gives a purchaser specific legal rights. A purchaser may have
even greater rights depending upon the laws of the jurisdiction within which
the product was purchased.
To hear demos on all EHX pedals visit us on the web at
www.ehx.com
Email us at info@ehx.com
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