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.

• Compact overdrive pedal with warm, smooth overdriven sounds
• Unique asymmetric overdrive circuitry for a classic, natural tube amp growl
• 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

Specs
-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

Current Draw: