Boss Super SD1-4A Anniversary Overdrive Guitar Pedal


Boss Super SD1-4A Anniversary Overdrive Guitar Pedal

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SKU: SD-1-4A Categories: ,

To celebrate 40 years of continuous SD-1 production, Boss company have created a limited edition anniversary version that’s available throughout 2021. This commemorative pedal features a black body with yellow lettering, gold-capped knobs, and a vintage silver thumbscrew for the battery compartment, and comes in a box with a special 40th anniversary logo.


Since its release in 1981, the workhorse SD-1 Super Overdrive has been the core gain pedal for generations of players across every musical genre. Based around the revolutionary asymmetrical clipping circuit from the OD-1 Overdrive—one of the three original BOSS compact pedals from 1977—the SD-1 delivers rich, smooth, and highly musical overdrive tones that continue to inspire guitarists everywhere.


  • 40th-anniversary edition of BOSS’s popular overdrive pedal
  • Asymmetrical clipping circuit provides a harmonic-rich sound with a tube like feel
  • Ideal for warming up or adding grit to a clean or edge-of-breakup tube amplifier
  • A great way to add tightness and definition to a high-gain setup
  • Makes a stellar lead boost and stacks well with other dirt pedals
  • Straightforward 3-knob control layout


  • Type: Overdrive
  • Controls: Level, Tone, Drive
  • True Bypass: No
  • Input Ports: 1x Mono
  • Output Ports: 1x Mono
  • Adapter included: No
  • Country of Origin: Malaysia
Weight 4 lbs


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