If you've ever owned an Analogman King Of Tone or JHS Morning Glory, than you're hearing the essence of the original Marshall Blues Breaker overdrive pedal you see before you.
Released in 1991, Marshall took their fabled Bluesbreaker overdrive sound and shrunk it down into an effects pedal. The pedal became the muse for many a boutique overdrive in the years that followed, but none would truly capture the sound as well as the original.
This particular example is very clean and sounds phenomenal. It's missing the original battery cover, but is otherwise all there. If you're looking for that O.G. BB overdrive, nothing gets you there quite like one of these!