Unleash a monstrous, crushing fuzz with the Electro-Harmonix Op-Amp Big Muff Pi. This iconic pedal delivers a wall-of-sound distortion, perfect for grungy rhythms and soaring leads. Experience the legendary tone that defined a generation, now in a compact, true bypass package. Dive into a world of thick, sustaining sonic bliss with ease.

                  
                                          
                        
Effect Type
                        
Fuzz, Distortion, Sustainer
                      
                                          
                        
Circuitry
                        
Op-amp based (3 gain stages)
                      
                                          
                        
Controls
                        
Volume, Sustain, Tone
                      
                                          
                        
Switching
                        
True Bypass
                      
                                          
                        
Tone Bypass Switch
                        
Yes
                      
                                          
                        
Audio Input
                        
1/4-inch jack
                      
                                          
                        
Audio Output
                        
1/4-inch jack
                      
                                          
                        
Chassis
                        
Compact Die-Cast Metal
                      
                                          
                        
Power Source
                        
9V Battery or AC Adapter (sold separately)