BOSS BF-3 Flanger Pedal

Overview

The BOSS BF-3 Flanger builds on the legacy of the classic BF-2, delivering thicker stereo flanging effects and expanded creative control. Designed for both guitarists and bassists, it offers a wide range of flanging textures from subtle modulation to intense jet-like sweeps.

New Ultra and Gate/Pan modes introduce deeper modulation and rhythmic slicer-style effects, while stereo outputs allow immersive spatial tones. With tap-tempo capability and dedicated guitar and bass inputs, the BF-3 provides a powerful flanger platform in the classic BOSS compact pedal format.

Main Features

• Classic BOSS flanger sound with expanded control
• Ultra and Gate/Pan modes for deeper and rhythmic flanging effects
• Tap tempo control via the pedal switch
• Momentary mode for instant flanger bursts
• Independent Guitar and Bass inputs
• Stereo outputs for wide modulation effects
• Durable BOSS compact pedal design

Specifications

Controls

• MODE
• RATE
• DEPTH
• RES (Resonance) / MANUAL
• Pedal switch

Audio

Nominal Input Level: −20 dBu
Input Impedance: 1 MΩ
Nominal Output Level: −20 dBu
Output Impedance: 1 kΩ
Recommended Load Impedance: 10 kΩ or greater

Effect Range

Delay Time:
0.3 ms – 14.4 ms (Guitar input)
0.3 ms – 6.3 ms (Bass input)

LFO Speed:
100 ms – 18 s

Connections

• Guitar In
• Bass In
• Output A (Mono)
• Output B
• DC In (9V)

Power

Power Supply: 9V battery or PSA-series AC adaptor
Current Draw: 40 mA

Dimensions

73 × 129 × 59 mm

Weight

420 g