Analog. Overdrive pedal is a supercharged.
I use it as a boost in my chain of effects

UTILIZATION

rglages-simple and easy: level, drive, tone
Do not drive a Exceeds 1 / 3 1 / 2 to a qualified boost. Level and tone depending on the guitar.

SOUND QUALITY

Indeed effective practitioner. Do not dnature the original sound.

OVERALL OPINION

used for 25 years. I do not sell it as it is an essential link in my chain of effects. A kind of boost of luxury.
If you find a hand, do not miss it.