Electro-Harmonix Triangle Big Muff PI Instructions

Triangle Big Muff Pi

Congratulations on your purchase of the Triangle Big Muff. It’s a faithful re-creation
of the original and dripping with vintage Electro-Harmonix DNA and tone. Dubbed the
Triangle Big Muff because of the layout of its Volume, Sustain and Tone controls, this
is the one that started it all circa 1969.

OPERATING INSTRUCTIONS

VOLUME Control – Sets the output level

TONE Control – Provides a range of sounds from high treble to deep bass. As you

turn the knob clockwise the treble increases and bass decreases.

SUSTAIN Control – Adjusts the amount of sustain and distortion.

Footswitch & Status LED – Use the footswitch to toggle between effect and

bypass. The Triangle 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”
input jack. The input impedance presented at this jack is 122kΩ.

OUT Jack – Connect the Triangle Big Muff’s ¼” OUT jack to the input of your
amplifier or another effects pedal. When the Triangle 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 Triangle Big Muff Pi

The Triangle 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
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 Triangle Muff Pi and void the warranty.

®

or Ibanez® style AC adapters

Changing the Battery

To change the 9V battery, remove the 4 screws on the bottom of the Triangle 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
[e-mail] or [phone]. 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
55-01 2ND STREET SWANSEA SA2 0RQ
LONG ISLAND CITY, NY 11101 UNITED KINGDOM

Tel: [phone] Tel: [phone]
Email: [e-mail] Email:

The CE logo indicates that this product has been tested and shown to conform with all
applicable European Conformity directives.

[e-mail]