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The BOSS SD1 Super OverDrive pedal creates the warm, natural distortion of an overdriven tube amplifier while maintaining the subtle nuances of a player's picking technique. This is one of the more subtle and smooth BOSS overdrive pedals, perfect for blues and rock. The BOSS SD-1 has unique asymmetric overdrive circuitry that delivers a genuine overdrive effect for a classic guitar sound. A Tone control is also provided for precise tonal adjustment. Specifications Input Impedance 470 k ohmsOutput Impedance 10 k ohms or greaterConnectors INPUT Jack, OUTPUT Jack, AC Adaptor Jack (DC 9 V)Power Supply DC 9 V: Dry Battery 9 V type (6F22/9 V), AC AdaptorCurrent Draw 6 mA (DC 9 V)Accessories Dry Battery 9 V type (6F22/9 V)Option AC Adaptor (PSA-Series)Size and Weight ( incl. battery )Width 73 mm 2-7/8 inchesDepth 129 mm 5-1/8 inchesHeight 59 mm 2-3/8 inchesWeight 0.4 kg 0 lbs. 15 oz.

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