the team's opinion: An MXR 103 Blue box in stock? But it's a fairly common model, isn't it? So yes, but today we offer you a model from 1995, the first reissue of the “script models”.
The MXR Blue Box is a fuzz pedal coupled with an octave! The latter offers original sounds that can be found with artists like Jack White or Josh Homme (QOTSA).
The saturation level goes up quite high and the octave feature allows you to get some pretty original solos out. Note that this is a “down” octave, going down 2 octaves.
The version offered here is an old model and starting to become rare on the second-hand market.