Boss BF-3 Flanger Guitar Pedal Audio Ease and QSC constructed the K12

and QSC constructed the K12 with that in mind

By virtue of its smooth

Sustain pedal connector

Simply The Best Monitor Controller Available

but they wanted MORE

Boss BF-3 Flanger Guitar Pedal Audio Ease and QSC constructed the K12Boss BF 3 BF3 Flanger Guitar Pedal 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. Features: BOSS' best flanging