Behringer revives the treadle-controlled Mu-Tron flanger idea with the B-Flanger
The new B-Flanger pairs an all-analog BBD circuit with a full-size optical treadle, bringing a rare late-1970s modulation format back into production.
Sep 23, 2026
Credit: Effects Database
Behringer's B-Flanger surfaced on September 22 as an all-analog bucket-brigade flanger built around an integrated optical treadle. The layout deliberately revisits the Musitronics Mu-Tron Pedal Flanger concept, letting players move the flange sweep directly with a foot pedal instead of relying only on an LFO.
The pedal can run in oscillator-controlled or treadle-controlled modes and provides rate and feedback shaping alongside true-bypass switching. The unusual part is not simply another vintage-flanger circuit: it is the return of a large expression-pedal format that disappeared with the original Mu-Tron design decades ago.
Retail listings are already appearing, but this run did not find a directly fetchable dated Behringer announcement page. The dated Effects Database entry is therefore used as the verified source rather than inventing details beyond what could be checked.
Credit: YouTube
Why it matters
Expression control is unusually central here: the B-Flanger restores a largely vanished hands-free modulation design rather than offering another compact clone of a familiar flanger box.
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