Skip to main content
Play Video

BOSS BF-3 Flanger Effects Pedal

149.99 $149.99
6-Month Special Financing
Limited time Learn more
More ways to pay:
Lease-to-own with Progressive Leasing. Learn more
Loyalty Points Icon
Loyalty Points Icon
Earn 1,200 reward points
($12.00 in credit)
Earn 1,200 reward pts.
($12.00 in credit)
Inventory Msg Check Mark Inventory Msg Exclamation In Checkout Promo Inventory Msg Download Icon
In Stock & Ready to Ship
Most orders placed before 3 p.m. ET ship same day (except weekends and holidays).
  • Free Shipping
  • Top Rated
  • Top Seller
  • Flexible Financing
Product Warranties Icon Product Warranties Icon

Gold Coverage Protection

Protect your gear

Chevron Right Icon

A legendary flanger is reborn.

The BOSS BF-3 Flanger effects 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 flanging with incredible depth—plus slicer-type effects and sounds that seem to swirl around you.


  • 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

Very hip. Order today.


BF-3 Flanger Effects Pedal Specifications:

  • 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)
    • 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
    • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information")
    • Registration Card
    • Alkaline battery (9 V, 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.

    Questions & Answers

    Do you have questions about this product?

    Shop with a Friend
    Free Shipping
    • Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
    • Orders placed before 3 p.m. ET usually ship the same business day.
    Learn More
    2-Year Free Warranty on Guitars

    Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.

    Contact Us for Details
    We're Here for You

    Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.

    Contact Us
    Proactive Advisor Support Chat