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🎸 Command the chaos with the MXR Blue Box™ – where fuzz meets fearless low-end!
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, low-midrange tones with rich harmonics. Powered by a 9V battery or optional adapter, it’s designed for players seeking a unique, chaotic sound experience that stands out in any setup.





| ASIN | B0002GY9Y0 |
| Amperage | 9 Milliamps |
| Audio Output Effects | Fuzz, Eighth down, Signal mix |
| Best Sellers Rank | 60,237 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 15,456 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 101 Reviews |
| Global Trade Identification Number | 00710137006546 |
| Hardware Interface | 1/4-inch Audio |
| Included Components | 9 volt battery |
| Item Weight | 0.5 Pounds |
| Item weight | 0.5 Pounds |
| Manufacturer | Jim Dunlop |
| Manufacturer Part Number | 11103000001 |
| Model Name | 11103000001 |
| Model Number | 11103000001 |
| Number of Items | 1 |
| Number of Packs | 1 |
| 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.
C**P
Five Stars
Great delivery. Product functions as it should.
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**L
genial
Genial para efectos "raros". Tiene un cierto aire a sonido sintetizado de ordenador antiguo que va genial para algunas canciones.
J**X
deep tone! nothing like it!
The sound is deep and can make your guitar sound like an old school computer game from the 80's. The best way to use this pedal is in front of an amp with subtle distortion/overdrive. (otherwise it can be confusing and noisy) Depending on the guitar you're using the best results are with neck pickup and tone knob on the guitar turned to 10. Its a great pedal for blues, desert rock and garage rock.
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
1 month ago