It is a compact pedal with a "distorted but transparent" hybrid tone played by many masters using the UK high output amplifier of the 60's and 70's that became the legend of rock.
A compact pedal produces the real rock sound of a British tube amp from the early 70's. Designed by Skreddy Pedals for the ultimate in classic rock tones, this pedal is centered around the midrange, with a sparkle when the amp begins to distort.