Boss SD-1 Super Overdrive

SD-1 Super Over Drive The SD-1 produces a wonderfully distorted or fully distorted sound that responds as precisely to your playing technique as a tube amp. Asymmetrical overdrive circuits specially developed for the SD-1 enable an incredibly detailed and at the same time warm reproduction. This is the standard distortion for blues – unchanged in popularity since 1981! Key features Controls: DRIVE, TONE, LEVEL Power consumption: 4 mA (DC9V)