---
product_id: 48519129
title: "MXR M103 Blue Box™ Octave Fuzz"
brand: "mxr"
price: "TT$3348"
currency: TTD
in_stock: true
category: "Mxr"
url: https://trinidad.desertcart.com/products/48519129-mxr-m103-blue-box-octave-fuzz
store_origin: TT
region: Trinidad and Tobago
---

# 9V battery or adapter powered Octave-down fuzz effect Massive low-frequency output MXR M103 Blue Box™ Octave Fuzz

**Brand:** mxr
**Price:** TT$3348
**Availability:** ✅ In Stock

## Summary

> 🎸 Command the stage with the MXR Blue Box™ — where fuzz meets fearless low-end!

## Quick Answers

- **What is this?** MXR M103 Blue Box™ Octave Fuzz by mxr
- **How much does it cost?** TT$3348 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [trinidad.desertcart.com](https://trinidad.desertcart.com/products/48519129-mxr-m103-blue-box-octave-fuzz)

## Best For

- mxr enthusiasts

## Why This Product

- Trusted mxr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Commanding:** Sleek, portable design fits effortlessly on any pedalboard without sacrificing power.
- • **Dive Deep into Sonic Chaos:** Unleash monstrous low-end frequencies that command attention and intimidate the stage.
- • **Powered for Endless Sessions:** Runs on a single 9V battery or Dunlop’s ECB-003 adapter for uninterrupted creativity.
- • **Every Play is a New Adventure:** Known for its unpredictable, chaotic personality that keeps your sound fresh and exciting.
- • **Two Octaves of Fuzzed Brilliance:** Transform your guitar tone with a unique octave-down fuzz that redefines your soundscape.

## Overview

The MXR M103 Blue Box™ Octave Fuzz pedal delivers a powerful analog fuzz effect combined with two octaves down, producing deep, rich low-midrange tones. Compact and powered by a 9V battery or optional adapter, it’s designed for guitarists seeking a bold, chaotic sound that transforms every session into a unique sonic experience.

## Description

Free delivery and returns on eligible orders of £20 or more. Buy MXR M103 Blue Box™ Octave Fuzz at desertcart UK.

## Features

- Shovels out enough low frequencies to scare a blue whale
- Takes your guitar signal, fuzzes it up, then duplicates it two octaves down
- Known for having a chaotic personality that can make each session a totally unique experience
- Powered by a single 9 volt battery or Dunlop's ECB-003 AC adapter (sold separately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002GY9Y0 |
| Amperage | 9 Milliamps |
| Audio Output Effects | Fuzz, Eighth down, Signal mix |
| Best Sellers Rank | 66,296 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 16,899 in Recording & Computer |
| Brand Name | MXR |
| Colour | Blue |
| Connector Type | 1/4 inch audio jack |
| Controls Type | Knob |
| Country of Origin | Taiwan |
| Customer Reviews | 4.3 4.3 out of 5 stars (101) |
| Global Trade Identification Number | 00710137006546 |
| Hardware Interface | 1/4-inch Audio |
| Included Components | 9 volt battery |
| Item Weight | 227 g |
| 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 |

## Product Details

- **Brand:** MXR
- **Colour:** Blue
- **Item weight:** 227 g
- **Style:** Compact
- **Voltage:** 9 Volts

## Images

![MXR M103 Blue Box™ Octave Fuzz - Image 1](https://m.media-amazon.com/images/I/81svcLP1laL.jpg)

## Questions & Answers

**Q: would this work for a 'sensitive' instrument like a 'piezo pickup' lap harp?...thanks**
A: It'll work, but it's simply on or off type sound. It doesn't respond to playing quietly very well, it sounds like it has a noise gate that kicks in when you pick harder. If you want full on octave fuzz then it will do the trick. But not for dynamic playing such as a fuzz face.

## Frequently Bought Together

- MXR M103 Blue Box™ Octave Fuzz
- MXR Duke of Tone Overdrive

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**Shop now:** [https://trinidad.desertcart.com/products/48519129-mxr-m103-blue-box-octave-fuzz](https://trinidad.desertcart.com/products/48519129-mxr-m103-blue-box-octave-fuzz)

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*Product available on Desertcart Trinidad and Tobago*
*Store origin: TT*
*Last updated: 2026-10-12*