




🔵 Unleash the blue 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 for a thick, chaotic sound. Powered by a 9V battery or AC adapter, it delivers 9mA current and weighs just 0.5 lbs. Renowned for its unique character and dynamic response to pickups, it’s a must-have for players seeking bold, low-frequency textures and unpredictable sonic adventures.





| ASIN | B0002GY9Y0 |
| Amperage | 9 Milliamps |
| Audio Output Effects | Fuzz, Eighth down, Signal mix |
| Best Sellers Rank | 60,566 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 14,858 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 | 4.4 out of 5 stars 100 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 |
| Model Name | 11103000001 |
| Model Number | 11103000001 |
| Power Source | Works with a DC power supply |
| Signal Format | Analog |
| Style | Compact |
| UPC | 710137006546 962327363834 710137065208 |
| 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.
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