BOSS SD-1-4A SUPER OVERDRIVE 40TH ANNIVERSARY MODEL, LIMITED PRODUCTION FOR 2021

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

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
Carbon: Approx. 60 hours
Alkaline: Approx. 90 hours
*These figures will vary depending on the actual conditions of use.
Accessories
Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Carbon-zinc battery (9 V, 6F22)
Options (sold separately)
AC adaptor: PSA series
Size and Weight
Width
73 mm
2-7/8 inches
Depth
129 mm
5-1/8 inches
Height
59 mm
2-3/8 inches
Weight (including battery)
360 g
13 oz