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.

Features:

• 40th-anniversary edition of BOSS's popular overdrive pedal
• Asymmetrical clipping circuit provides a harmonic-rich sound with a tubelike 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

Specifications:

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