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BOSS BF-3: Flanger
BOSS BF-3: Flanger

List Price: $217.50
Our Price: $139.00
Savings: $78.50

Product Code: BF-3

Description Technical Specs

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 5-year warranty
Nominal Input Level
-20 dBu
Input Impedance
1 M ohms
Nominal Output Level
-20 dBu
Output Impedance
1 k ohms
Recommended Load Impedance
10 k ohms or greater
Delay Time
0.3 mS to 14.4 ms (GUITAR IN), 0.3 ms to 6.3 ms (BASS IN)
LFO Speed
100 mS to 18 S
Residual Noise
-95 dBu (IHF-A Typ.)
Pedal Switch, MANUAL Knob, RES (resonance) Knob, DEPTH Knob, RATE Knob, MODE Knob
CHECK Indicator (Serves also as tempo and battery check indicator)
GUITAR IN Jack, BASS IN Jack, OUTPUT A (MONO) Jack, OUTPUT B Jack, AC adaptor Jack (DC 9 V)
Power Supply
DC 9 V: Dry battery (9 V type), AC Adaptor (PSA-series: optional)
Current Draw
40 mA (DC 9 V)
Dry battery (9 V type) S-006P/9 V (6F22/9 V)
Owner's Manual
AC Adaptor: PSA-Series
Size and Weight ( incl. battery )
73 mm
2-7/8 inches
129 mm
5-1/8 inches
59 mm
2-3/8 inches
0.4 kg
0 lbs. 15 oz.
* 0 dBu = 0.775 Vrms.
*The specifications are subject to change without notice.


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