Boss Limited Edition 40th Anniversary SD-1 Super Overdrive

To celebrate 40 years of continuous SD-1 production, weve created a limited edition anniversary version thats 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 Overdriveone of the three original BOSS compact pedals from 1977the 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
• BOSS five-year warranty

Specifications

-Nominal Input Level
-20 dBu

-Input Impedance
1 M ohm

-Nominal Output Level
-20 dBu

-Output Impedance
1 k ohm

-Recommended Load Impedance
10 k ohms or greater

-Bypass
Buffered bypass

-Controls
DRIVE knob
TONE knob
LEVEL knob
Pedal switch

-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
Carbon-zinc battery (9 V, 6F22) or Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)

-Current Draw
10 mA

-Expected battery life under continuous use (These figures will vary depending on the actual conditions of use.)
Carbon: Approx. 60 hours
Alkaline: Approx. 90 hours

-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

-Weight (including battery)
360 g
13 oz

-Accessories
Owner's manual
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Carbon-zinc battery (9 V, 6F22)

-Options (sold separately)
AC adaptor: PSA series

* 0 dBu = 0.775 Vrms