MXR Blue Box Fuzz

If you're interested in Blue Box mods you may also be interested in our Black Box Fuzz.

The Blue Box Tone Knob addresses the volume drop that is inherent in the pedal and enhances the thick, syrupy fuzz tones that come from this pedal. The Tone Knob disables the treble cut circuit that the Blue Box has in it's stock form. The result is a boost in treble and overall output. Originally we used a toggle switch (as shown in the video below) but have now managed to fit a knob in its place for more control.

The Blue Box has a Blend knob which allows you to mix in a fuzz that is two octaves below your original pitch. This is a great feature but the sub-octave may be too low to have any impact depending on your rig and playing style. Our Octave Toggle allows you to select between 2 sub-octaves and 1 sub-octave which still provides rumble but is more intelligible. The Octave NS (Non-switchable) mod converts the pedal to 1 sub-octave without installing a toggle switch. 

The Blue Box reissues are known to have signal bleed which sounds like a faint, background fizzle when the pedal is bypassed. This is due to the Blue Box's bypass system allowing the high gain signal to feed back into the bypass circuit. Our True Bypass/ Signal Bleed Fix modification will remedy this problem and prevent other forms of signal degradation due to the existing bypass system.

Our Overhaul mod simply combines our most popular mods for the Blue Box at a discounted rate. The overhaul includes the Tone Knob, Octave Toggle, and True Bypass. 

Tone Knob................................................... $35
Octave Toggle.............................................. $35
Octave NS.................................................... $15
True Bypass/ Signal Bleed Fix....................... $35
Overhaul...................................................... $90