BOSS SD1 Super Overdrive guitar effect pedal

BOSS SD-1 Super Overdrive
The SD-1 Super OverDrive pedal produces the warm, natural distortion of an overdriven tube amplifier while maintaining the subtle nuances of a player's picking technique. This is one of BOSS' more subtle and smooth overdrive pedals, perfect for blues and rock.
• Compact overdrive pedal with warm, smooth overdriven sounds
• Unique asymmetric overdrive circuitry for a classic, natural tube amp growl
• Tone control provides precise adjustment of drive sound

Specifications:
• Input Impedance 470 k ohms
• Output Impedance 10 k ohms or greater
• Connectors: INPUT Jack, OUTPUT Jack, AC Adaptor Jack (DC 9 V)
• Power SupplyDC 9 V: Dry Battery 9 V type (6F22/9 V), AC Adaptor
• Accessories: Dry Battery 9 V type (6F22/9 V)
• Weight: 0.4 kg