Here at GPAS we believe MXR are setting the standard in the Guitar FX category. If you are considering the MXR Blue Box Octave Fuzz Pedal M-103, it is currently in stock in the UK at an excellent online price. Products are delivered quickly across the UK, Europe and beyond, so you can shop with confidence wherever you are. A raucous fuzz pedal with double-octave-down capabilities, the MXR Octafuzz is a distinctive sound that thickens up licks and riffs for massive tone that is hard to miss. Down and dirty, the M-103 allows you to control the mix of the…
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Here at GPAS we believe MXR are setting the standard in the Guitar FX category. If you are considering the MXR Blue Box Octave Fuzz Pedal M-103, it is currently in stock in the UK at an excellent online price. Products are delivered quickly across the UK, Europe and beyond, so you can shop with confidence wherever you are.
A raucous fuzz pedal with double-octave-down capabilities, the MXR Octafuzz is a distinctive sound that thickens up licks and riffs for massive tone that is hard to miss. Down and dirty, the M-103 allows you to control the mix of the effect so you can try to tame this beast!
MXR pedals have great tone, are built to last and represent excellent value for money. You can be sure that the box under your foot will deliver great quality tone gig after gig.
Here’s what MXR say about the Octave Fuzz Pedal M-103
Adds fuzz to your signal and then duplicates it two octaves down
Control the mix of the dry signal and the effect
Used by Jimmy Page for the solo in Led Zeppelin’s “Fool in the Rain.”
This is the crazy effect heard on Jimmy Page’s “Fool in the Rain” solo. The Blue Box takes your guitar signal and duplicates it two octaves down for a huge, subterranean tone. The Blend knob lets you control how much of the effected tone you mix in with your dry signal. Not for the timid—there is truly nothing like the Blue Box.
Power: Dunlop ECB003 AC Adapter or Single 9 volt battery
Blue guitars have a cool, confident presence that stands out without being too flashy. Whether it’s a deep midnight blue, a bright metallic finish, or a vintage pastel hue, a blue guitar often strikes the perfect balance between classic and modern. Many players are drawn to blue for its calming vibe and stage-ready aesthetic—it can feel soulful, moody, or edgy depending on the shade and style. It’s a colour that turns heads without shouting, making it a favourite for those who like to express a bit of personality through their gear.
Fuzz is a type of guitar effect that produces a highly distorted and saturated tone characterized by its thick, buzzy, and aggressive sound. It’s achieved by clipping the guitar’s signal in a way that creates extreme distortion and compression, resulting in a velvety, sustaining fuzziness. Fuzz pedals typically feature controls for adjusting parameters such as gain (the amount of distortion), tone (the frequency response of the fuzzed signal), and volume (the output level). By manipulating these controls, guitarists can create a wide range of fuzz tones, from gritty and raw to smooth and singing. Fuzz is commonly used in genres such as rock, blues, and psychedelic music, where it adds texture, power, and intensity to guitar solos, riffs, and rhythm parts. Popular fuzz pedal models include the Electro-Harmonix Big Muff Pi, Dunlop Fuzz Face, and ZVex Fuzz Factory.
Guitar FX (effects) refer to the wide range of pedals and processors that shape and manipulate a guitar’s signal to create different sounds. From classic distortion and overdrive to reverb, delay, modulation, and pitch-shifting, effects are at the heart of a guitarist’s creative toolkit. Whether analogue or digital, stompbox or multi-effects unit, Guitar FX allow players to express mood, texture, and dynamics in unique ways. Used thoughtfully, they can transform a simple riff into something atmospheric, aggressive, or entirely otherworldly.
We have new and usedMXR musical equipment available on our website for fast direct delivery from sellers across the UK & Europe.
MXR, short for “Mixing,” is a well-respected manufacturer of guitar pedals and audio effects units known for their reliability, innovation, and iconic sound. Established in the 1970s, MXR has been a staple in the pedalboard setups of countless musicians across various genres, from rock and blues to metal and beyond. Renowned for classics like the Phase 90, Dyna Comp compressor, and Carbon Copy delay, MXR pedals offer a wide range of effects to help guitarists shape and enhance their tone. With a commitment to quality construction and timeless designs, MXR continues to push the boundaries of what’s possible in effects pedals, providing musicians with the tools they need to unleash their creativity and express their unique sonic identities.
