Mayfly Audio Déesse dual flanger
MayFly FINALLY Introduces the Déesse dual flanger.
High quality effects for the tone obsessed
Ottawa, Ontario – March 2, 2026 – It’s been the running joke at the Mayfly shop for years: What flanger prototype will Trevor throw in the trash this week? We’re pretty picky about the sound of our effects, but the flanger project was getting ridiculous. However after many failed experiments, we finally have a flanger that we feel is the best in the world: The Déesse dual flanger.
The Déesse has two foot-switch selectable sides with independent Speed and Width controls. Set side A to be a classic slow flange, sent side B to a ring modulator sound (or anything in-between), and switch between them on the fly, live. There are Manual and Regen controls, and of course it’s full bypass.
Like the popular Mayfly Goddess dual chorus, the Déesse uses bucket brigade delay chips to give it its great sound. These chips are expensive and a pain to work with, but our many failed digital flanger protos showed us that this old-school tech still sounds the best.
See the Déesse Launch Video: https://youtu.be/eljWe6cOvTI
Just for fun, watch Trevor throw away flanger prototypes: https://youtu.be/Aq7FzRFe_UY?si=zpRO1fAwBltkxKKB
Dual flanger with footswitch selectable sides.
Separate Speed and Width controls for each side.
Manual and Regen controls.
Old-school bucket brigade chips for unrivalled flanging sound.
Full bypass.
9VDC, 55mA.
Artwork by Sabine Elliott.
$295 CAD.
About MayFly Audio Systems, Ltd
MayFly Audio Systems is led by chief designer Trevor May. He’s a musician and electrical Engineer with a long career in audio, video, chip design, CAD, telephony, mechanical design, and acoustics. He’s published papers on compiler design and holds several patents. He is also a guitarist and songwriter,
released five albums, and charted on the Billboard Top 100. Launched in 2020, MayFly builds its innovative line of effects in Ottawa, Canada.
About the name ‘Déesse’
‘Déesse’ is French for Goddess. This flanger sounds like it has divine feminine connections, but we could not call it ‘Goddess’ as we already had a pedal with that name. So instead we named it after a mythical Québécois character who ranks right up there in the powerful, mystical, and la Femme category. Kind of like the pedal itself.