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BOSS SD-1 Super Overdrive official product page
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Boss SD-1 Super Overdrive
Effects pedal · Japan
The Boss SD-1 Super Overdrive is a compact stompbox released in 1981. It uses an asymmetrical clipping circuit to produce warm, tube-like overdrive with Drive, Tone, and Level controls, and has remained a long-running core gain and boost pedal across rock, blues, country, and metal.