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BF-3 Flangerplay button

BF-3 Flanger

collapse expand iconDescription

The BOSS BF-3 flanger effects pedal gives guitarists and bassists an updated version of the classic BOSS flanger known for having arguably the thickest stereo flanging sounds ever. Two new modes (Ultra and Gate/Pan) create flanging with incredible depth—plus slicer-type effects and sounds that seem to swirl around you.
BOSS BF-3 Flanger Effects Pedal

collapse expand iconFeatures

  • Incredible flanging effects in a compact pedal
  • New Ultra and Gate/Pan modes for ultrafat flanging with very low noise
  • Momentary mode turns flanging on instantly
  • Tap tempo adjustable via pedal
  • Independent guitar and bass inputs and stereo outputs
  • 5-year warranty

collapse expand iconSpecs

  • Nominal Input Level: -20dBu
  • Input Impedance: 1 mohm
  • Nominal Output Level: -20 dBu
  • Output Impedance: 1 kohm
  • Recommended Load Impedance: 10 kohms 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" phone type
    • BASS IN jack: 1/4" phone type
    • OUTPUT A (MONO) jack: 1/4" phone type
    • OUTPUT B jack: 1/4" phone type
    • DC IN jack
    Power Supply
    • Alkaline battery (9V, 6LR61)
    • AC adapter (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 (9V, 6LR61)
    Size and Weight
    • Width: 73 mm, 2-7/8"
    • Depth: 129 mm, 5-1/8"
    • Height: 59 mm, 2-3/8:
    • Weight (including battery): 425 g, 15 oz.

    collapse expand iconWarranty

    Boss pedals - 5 year parts warranty
    90 day labor warranty.
    1 year warranty - Multitracks, Jamstations, etc.
    Check with manufacturer for specific product warranty.

    Featured Articles

    collapse expand iconReviews

    4.77

    35 Reviews

    100%

    of respondents would recommend this to a friend

    Most Liked Positive Review

    5

    All the flange you'll ever need

    I have used many flangers over the years and the Boss BF-3 Flanger is in the top of the class. Whether you want a touch of coloring or oceans of swirl, this pedal will do it all. The BF-3 features a pink metal casing, the same easy click-less switching and red led check light that all boss pedals are known for. It has four main adjustment knobs, of which, the mode knob has the most variety of options. "Standard" mode covers all the basic amounts of flange for most applications. For those who like their flange extra thick, there is "Ultra" mode which gives more of an edge than the standard provides. "Gate/Pan" mode gives a slicer effect that is like a tremolo with a light swirl, and "Momentary" gives you the option of keeping the pedal active only when the pedal is depressed, in a non-latching fashion, for those quick touches. As with most flangers the rate knob controls the speed of the swirl, and the depth knob adjusts the amount of thickness in the effect in contrast to the instrument itself. The last knob is a 2 stage control. The inner knob controls the resonance, and the outter knob controls manual. These 2 work together to adjust which range is affected by the flanging. At complete polar opposites, at one end it will give a lower swirl, and when reversed, it gives a a higher metallic flange. If you depress the pedal and hold it for a minimum of 2 seconds you can set the tempo so your effect speed is in sync with your music. When this is accesed you simply set it by tapping a few beats on the pedal in time with your song and it syncs up instantly. The BF-3 also has duel outputs so it can be operated in mono or stereo for maximum effect. The only feature missing on this pedal is a volume control knob, but with the thickness control you can pretty much compensate for its abscence. Overall the Boss BF-3 Flanger is everything most of the great flangers are and then some. It allows for complete control over any type of flanging effect you could ever desire. With a descent price and pro features the BF-3 proves to be yet another classic from Boss.

    VS

    Most Liked Negative Review

    2

    This is not about the pedal

    The pedal shipped very fast. BUT, it did not come in its original box, it was just wrapped up in packing paper. It was not specified if it was an open box or a display piece. It looks brand new, but now I do not know if it is brand new. I have no manufacturer paperwork. There was also a battery already in it. Very weird.

    Filters
    Best Uses
    1. Performances12
    2. Home Studio10
    3. Professional Recording7
    4. Amateur Recording6
    5. Outdoor Events / Games5
    Cons
    1. Limited Selection Of Effects1
    2. NONE YET1
    Describe Yourself
    1. Experienced13
    Pros
    1. Excellent Sound Quality14
    2. Responsive8
    3. Versatile8
    4. Compact6
    5. Good Selection Of Effects6
    • Was stolen. So I bought a replacement. Excellent pedal.

      5

      submitteda year ago

      byKevin

      fromBellingham Washington

      This is a solidly built. Feature packed. Very versatile sounding pedal. I love the small size too.

    • I'm very happy with this product

      5

      Verified BuyerVerified Buyer

      submitted2 years ago

      byBrian

      fromMassachusetts

      Submitted as part of a sweepstakes

      I'm very happy with my Boss pedal and the customer service at Guitar Center, Danvers MA.

    • This is not about the pedal

      2

      submitted4 years ago

      byErik

      fromJacksonville FL

      The pedal shipped very fast. BUT, it did not come in its original box, it was just wrapped up in packing paper. It was not specified if it was an open box or a display piece. It looks brand new, but now I do not know if it is brand new. I have no manufacturer paperwork. There was also a battery already in it. Very weird.

    • Extremely Versatile Flanger

      5

      submitted4 years ago

      byCoopDbomb

      fromTaylorsville, UT

      This pedal is insane. It flanges, of course, but it can also tremolo, vibe, and chorus, if you get the settings right. This thing can be very subtle or over-the-top, and anywhere in between. It's extremely versatile and responsive, and justifies the price, in comparison to the other pedals within the Boss family. It includes a res/manual control that is very important for sculpting your tone, so use it wisely, and you'll get it to sound exactly how you want it to. I definitely recommend this to any Boss user or Flange lover.

    • Amazing!!!

      5

      Verified BuyerVerified Buyer

      submitted5 years ago

      byDanny H.

      fromBranson Mo.

      The first time I stomped on this pedal I knew it was going to have a permanent place on my pedal board! Lush jet airliner swooning tones, giving depth and movement to my tone! Easily tweeted to get everything fine tuned. Love everything about it! And... Boss pedals are built like an anvile, they can take abuse!

    • Love at first stomp!

      5

      submitted5 years ago

      byDanny

      fromBranson Mo.

      The first time I stomped on the BF-3 I said this is going on the pedal board and never coming off. Great tones with variability to dial in just the right jet airplane sound! Boss pedals are built like tanks! You can't go wrong!

    collapse expand iconQ&A

    Have a question about this product? Our expert Gear Advisers have the answers.

    • asked byKen

      fromFranklin NH

      Does this item come with the power cord?

      Does this item come with the power cord?

      Open Reply - Kenneth
      This does not include a power adapter