The MXR Blue Box is a a classic fuzz with a two octave down effect that can be blended in. It is capable of making intense and strange noises.
Use the output knob for fuzz amounts and use the blend knob to control how much sub octave you want in the mix.
This pedal is made famous by Jimmy Page of Led Zeppelin on the for the “Fool in the Rain” solo., and was used extensively by King buzzo of the Melvins.
Pedal is used and has noticeable cosmetic wear, pedal is 100% functional.