Boss Boss 40th Anniversary Limited Edition SD1 Super Overdrive Pedal

Code: Boss 40th Anniversary Limited Edition SD1 Super Overdrive Pedal
  • £66.00
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Boss 40th Anniversary Limited Edition SD1 Super Overdrive Pedal

Asymmetric brilliance

Full of character. The Boss SD-1 has been a mainstay on many pedalboards since its introduction in 1981. This is thanks to its unique sound and versatile range of overdriven tones. If you want a pedal with character to give you an extra lift and pleasantly colour your sound regardless of gain setting, there aren't many better pedals out there than the SD-1. The patented asymmetric clipping design adds a brilliance to your tone perfect for big, crunchy open chord rhythm work, and soaring intricate lead runs alike. The SD-1 will thicken up single-coil tones or enrich the harmonic content of humbuckers, it will excel with whatever you throw at it. For this reason, it also pairs superbly with it's distortion counterpart, the DS-1; together they form a formidable partnership because the respective tones compliment each other so well. If you need that extra kick from your playing, the SD-1 will work wonders for your tone.

Most overdrive pedals clip symmetrically giving a slightly thinner sound, that's because asymmetrical clipping creates more harmonic overtones. This gives a richer, thicker sound, overall. This helps create the iconic driven tones the SD-1 is known for, and now with new dark visuals, you can celebrate its anniversary in style.


  • 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


  • Product code: SD-1-4A
  • Indicator: CHECK indicator (Used for indication of check battery)
  • Connectors:
    • INPUT jack: 1/4-inch phone type
    • OUTPUT jack: 1/4-inch phone type
    • DC IN jack
  • Power Supply:Current Draw: 10 mA
    • Carbon-zinc battery (9 V, 6F22) or Alkaline battery (9 V, 6LR61)
    • AC adaptor (PSA series: sold separately)
  • Expected battery life under continuous use (These figures will vary depending on the actual conditions of use.):Dimensions: 73 (W) x 129 (D) x 59 (H) mm / 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches
    • Carbon: Approx. 60 hours
    • Alkaline: Approx. 90 hours
  • Weight (including battery): 360 g / 13 oz

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