The SD-1 produces the warm, smooth distortion of an overdriven tube amplifier while maintaining the subtle nuances of your picking technique. BOSS' unique asymmetric overdrive circuitry delivers a genuine overdrive effect for a classic guitar sound. A Tone control is also provided for precise tonal adjustment.
Controls: Level, Tone, Drive
Connectors: Input, Output, AC Adaptor
Current Draw: 4 mA (DC 9V) (Advertisement says 4mA, the manual says 6 mA, measurements confirmed current draw to be 3.7 mA)