The flanger effect but not as you know it. Based on a beloved studio classic, Flanger BL-20 is unpredictable and inspiring in equal measure, pushing the familiar jet-engine effect into endless modulation territory. Add massive movement and harmonic depth to your mix with the only flanger you’ll ever need.
An elusiveclassic
An unsung hero in the world of modulation effects.
A rare gem that’s renowned for its mysterious complexity. Flanger BL-20’s hardware predecessor may not be a household name, but its hypnotic sound and radical feature set speaks for itself.
Toggle and combine multiple modulation sources, manipulate the LFO shape and stereo spread, plunge harmonic sweeps to uncharted depths. Flanger BL-20 is no ordinary analog emulation - it’s an FX toolkit gone supersonic.
3 modulation sources
Choose between Auto (LFO), Env (internal or external) or Manual, or any combination of the 3, for an array of flanger sounds unlike anything you’ve ever heard.
Stereo enhancer
Operate Flanger BL-20 in either mono or stereo mode, and manipulate the stereo spread of the modulated signal for ultra-wide presence in your mix.
Zero-crossing
Due to a tiny delay applied to the dry signal, the modulated signal doubles back over the original starting point, resulting in a classic deep flange with prominent ‘blips’ in the sound.
BBD warmth
Flanger BL-20 uses authentic bucket-brigade device circuitry replication to emulate the original unit’s gloriously warm analog response.
Advanced controls
Change the Auto LFO shape, tweak the stereo spread - we even added an advanced function generator from Pigments. Vintage charm meets cutting-edge.
Presets
A curated selection of 28 presets, giving you instant access to the energetic movement and analog brilliance of Flanger BL-20.
Reachingabsolute zero
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 totally cancels out certain frequencies - resulting in distinct dips in the sound. This is known as ‘zero-crossing’ or ‘through-zero’ flanging, 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 - there’s nothing quite like it.
Main Features
- Ultra-flexible stereo flanger with enhanced controls
- 3 combinable modulation sources: Auto (LFO), Env and Manual
- Perfectly emulated BBD response for coveted warm sound
- Arturia's advanced features enhancing the original unit:
