Boss SD-1-B50A LTD 50th Ann. Super Overdrive Pedal

Since 1973, BOSS has pioneered the development of unique and innovative guitar gear for players of all styles. The iconic compact pedal design was unveiled in 1977 showcasing the game-changing OD-1 OverDrive. Subsequently, in 1981, BOSS released the SD-1 Super OverDrive featuring the added benefit of a tone control. Remaining in production ever since, this workhorse gain machine has continuously graced the pedalboards of beginners and pros the world over.

Marking the celebration of BOSS’s 50th anniversary, the limited-edition SD-1-B50A Super OverDrive sports a metallic finish; silver thumb screw; gold-capped knobs; and commemorative 50-year anniversary emblem. Appearing in exclusive livery with a dedicated 4-digit serial number and bespoke packaging, the SD-1-B50A features the same beloved circuitry as the standard production SD-1 Super OverDrive. This collectible version is available in strictly limited numbers of no more than 7,000 units worldwide.

• 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
• BOSS five-year warranty

• 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
• 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