Best Review MXR Blue Box M103

MXR Blue Box M103Best Review MXR Blue Box M103

With so many on offer today, it is good to have a brand you can recognise. The MXR Blue Box M103 is certainly that and will be a perfect buy. For this reduced price, the MXR Blue Box M103 is widely recommended and is always a regular choice for lots of people.


  • 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-002 AC adapter (sold separately)

Product Description

Output and blend controls ON/off LED Work with 9V battery (not included)