The BOSS BF3 Flanger is the successor to the popular BF2 and so therefore has all the characteristics of its predecessor with a little something extra. All the official flanging sounds can be adjusted by the Depth, Width, Resonance (almost a kind of feedback control) and manual (by the change of the delay time the effect is changed) controls, making it really versatile. From subtle, chorus-like settings to the famous "jet-jet" sound, a variety of flanging sounds are possible.
The new modes (ultra and gate / pan) produce stereo sounds of impressive spatiality. Independent inputs for guitar and bass make the BF3 just as interesting for bass players, with an additional foot switch the speed of the effect can also be controlled in tap tempo mode. The BF3 is characterised by a very good signal-to-noise ratio.