Boss SD-1-4A Limited Edition 40th Anniversary Super Overdrive Guitar Effects Pedal

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.

 

To celebrate 40 years since the release of the iconic SD-1, Boss have introduced the SD-1-4A, a 40 year anniversary edition of the original pedal. This is the perfect pedal for collectors all around the world.