Product Overview
Excellent condition. Pedal only. Tested as working to spec. Japanese made, dates to February 1988
Serial number 874085
The SD-1 Super Overdrive is the second overdrive pedal made by the Boss Corporation. Released in 1981, and produced continuously since, the SD-1 was an update to the brand's groundbreaking OD-1 Overdrive, adding a tone control and refining its predecessor's circuit for slightly more gain and aggression in its voicing.
The changes made the SD-1 especially popular within the growing hard rock and heavy metal subgenres upon its release, with guitarists frequently using it to boost already-overdriven amplifiers like the Marshall JCM800 into even higher-gain sounds. The SD-1's design has remained unchanged since its debut, and it remains a pedalboard staple among both amateur and professional players.
OP-AMP: JRC4558 DD
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