The Arturia Flanger BL-20’s hardware predecessor may not be a household name but its hypnotic sound and radical feature set speaks for itself. This powerful plug-in allows you to toggle and combine multiple modulation sources, manipulate the LFO shape and stereo spread and plunge harmonic sweeps to uncharted depths. The flanger effect is achieved by modulating a delayed version of your signal using an LFO. Flanger BL-20 expands this principle in multiple directions. By applying an undetectable delay to the dry signal, the modulated signal is able to reach—and eventually pass over—the original starting point of the signal. This cancels out certain frequencies and results in distinct dips in the sound, also known as ‘zero-crossing’ or ‘through-zero’ flanging. This is perfect for that dynamite ‘80s guitar sound. Finally, the option of multiple modulation sources gives Flanger BL-20 a uniquely animated quality. Use the default LFO, a responsive envelope follower, or a static manual override.

A crucial element of Flanger BL-20’s sound is the bucket-brigade device circuitry emulation. This circuitry was meticulously replicated in virtual form to ensure a pristine analog response. Not only does BL-20 offer mind-blowing modulation capabilities, it adds that desirable vintage sparkle that plug-ins often lack. This makes it a formidable mix sweetener for any style. Enhance your rhythm guitar parts, animate your backing vocal tracks, enrich a repetitive drum loop; whatever your application, it will simply sound better.