This effects pedal presents in excellent conditiona nd appears to have retained its cosmetic and structural integrity. There has been no velcro attached to the bottom but a few scuff marks are present. It comes with the original box. 

The SD-1-4A celebrates 40 years of continuous production. 

Many BOSS compact pedal models have been continuously produced for multiple decades, and the SD-1 Super Overdrive and MT-2 Metal Zone are two of the most revered. Scores of innovative and trendsetting guitarists across all genres have adopted these pedals for their core tones and used them to create some of the most popular and influential music of all time.

Introduced way back in 1981—the same year that MTV launched and mass-market personal computers began to take off in large numbers—the SD-1 Super Overdrive has remained a players’ workhorse for four decades strong. Its distinctively smooth voice is derived from the groundbreaking OD-1 Overdrive, one of the three original BOSS compact pedals from 1977, and also the pedal that created the now-ubiquitous “overdrive” category in the industry. Powered by a unique asymmetrical clipping circuit that produces the pleasing sound and feel of a driven tube amp, the SD-1’s rich, versatile, and highly musical tone continues to inspire guitarists everywhere. The commemorative SD-1-4A 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

• Genre-defining BOSS overdrive sound
• Unique asymmetrical clipping circuit produces tube-like overdrive characteristics
• Mild-to-moderate drive tones with focused midrange and tight low end
• Ideal for use with clean and slightly driven amps
• Also works great for bringing tightness and definition to high-gain amp tones
• Stacks well with boost, overdrive, and distortion pedals

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