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Boss BF3 Flanger Effects Pedal - BF3

Boss BF3 Flanger Effects Pedal - BF3
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Building on the 20-year legacy of the famous BOSS BF-2, the new BF-3 flanger pedal gives guitarists and bassists an updated version of the classic BOSS flanger with the thickest stereo flanging sounds ever. Two new modes (Ultra and Gate/Pan) create stereo flanging with incredible depth--even Slicer-type effects and sounds that seem to "swirl" around the listener. An instant classic.



  • BOSS' best flanging effects in a compact pedal
  • New Ultra and Gate/Pan modes for ultra-fat flanging and futuristic slicer-type sounds, respectively
  • Momentary mode turns flanging on instantly
  • Tap tempo adjustable via pedal
  • Independent Guitar and Bass inputs and stereo outputs
  • 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 - MODE knob
RATE knob
DEPTH knob
RES (Resonance)/MANUAL knob
Pedal switch Indicator - CHECK indicator (Used for indication of check battery)
Connectors - GUITAR IN jack: 1/4-inch phone type
BASS IN jack: 1/4-inch phone type
OUTPUT A (MONO) jack: 1/4-inch phone type
OUTPUT B jack: 1/4-inch phone type
DC IN jack
Power Supply - Alkaline battery (9 V, 6LR61)
AC adaptor (PSA series: sold separately)
Current Draw - 60 mA
Expected battery life under continuous use - Alkaline: Approx. 4 hours
*These figures will vary depending on the actual conditions of use.
Accessories - Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
Registration Card
Alkaline battery (9 V, 6LR61)
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) - 425 g
15 oz
* 0 dBu = 0.775 Vrms