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🎸 Unleash the beast: fuzz, chaos, and octave madness in one compact stompbox!
The MXR M103 Blue Box™ Octave Fuzz is a compact, analog effects pedal that fuzzes your guitar signal and adds two octaves down, delivering thick, chaotic low-midrange tones. Powered by a 9V battery or optional adapter, it weighs just 227g and is designed for players seeking unique, character-rich fuzz with powerful low-end presence.





| ASIN | B0002GY9Y0 |
| Amperage | 9 Milliamps |
| Audio Output Effects | Fuzz, Eighth down, Signal mix |
| Best Sellers Rank | 64,792 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 16,074 in Recording & Computer |
| Brand | MXR |
| Brand Name | MXR |
| Colour | Blue |
| Connector Type | 1/4 inch audio jack |
| Controls Type | Knob |
| Country of Origin | Taiwan |
| Customer Reviews | 4.3 out of 5 stars 102 Reviews |
| Global Trade Identification Number | 00710137006546 |
| Hardware Interface | 1/4-inch Audio |
| Included Components | 9 volt battery |
| Item Weight | 227 g |
| Item weight | 227 g |
| Manufacturer | Jim Dunlop |
| Manufacturer Part Number | 11103000001 |
| Model Name | 11103000001 |
| Model Number | 11103000001 |
| Power Source | Works with a DC power supply |
| Signal Format | Analog |
| Sound Profile | Low-midrange with prominent harmonics |
| Style | Compact |
| UPC | 710137006546 962327363834 710137065208 |
| Unit Count | 1 Count |
| Voltage | 9 Volts |
J**.
Fuzzy and messy and brilliant
thick fuzz sounds, great when combined with other effects. The one thing this pedal has stacks of, is character, it sounds warm and it crackles and spits when trying to track notes. It tracks very well when playing about the 11th fret though. Reacts differently to different pickups. Unique and fun to play with IF you like noise. Not one for pure tone hunters.
D**G
Beautiful Huge Lead Tone
Love it! Does everything I wanted it to do. Deep and unique octave and fuzz tone. It does not cut volume. 75% is unity volume. Beyond that, it will start driving your amp, which is cool too. Because of the low frequency bass, it does EQ your signal in a way which may not punch through a mix as easily. My fix for that is to put it in front of a phase shifter. With an MXR Phase 100 it will chew its way through a mix quite easily. To improve tracking, use your bridge pickup and turn its tone control down all the way. For further improvement, use a compressor in front of it. Keeping a consistent input level smooths out the tracking and noise. If you need perfect polyphonic octave tracking, get a HOG or a POG. This a unique sound all its own that will give you a monsterous lead tone if you treat it right.
C**P
Five Stars
Great delivery. Product functions as it should.
D**L
genial
Genial para efectos "raros". Tiene un cierto aire a sonido sintetizado de ordenador antiguo que va genial para algunas canciones.
J**A
Nintendfuzz ...
This goes from a really awesome sounding fuzz to a nintendo-esque type Octaver-fuzz sound with weird nuances. This is a pedal for an experimenter. While my description of its sounds may sound weird it is musical. I believe it's used in some White Stripe songs. You'll notice it immediately when you hear it. Doom Metal riffers (who will love its insane fuzz) to "electronica" experimenters will be pleased by this little monster. The only downside is volume. It tends to be tamer than many of my other dirt pedals. Constructionwise, it'll survive a nuclear war. This thing will last longer than you will.
D**O
Caotico
Bajo mi experiencia,y leído variedad de opiniones de que si está bien el pedal,y de que si está mal, daré mi experiencia: Para mí este pedal ha sido un caos total,todo embarrado,nada de un minimo de definición,caótico. Lo he probado el primero en la cadena de mis pedales,lo he probado después de mi overdrive más flojo,lo he probado después del pedal de máxima distorsión. En definitiva caos total en todas las posiciones de mi pedalera,esa ha sido mi experiencia.
Trustpilot
2 weeks ago
5 days ago