Source Audio SA40 Mercury Flanger has three types of effects: Classic mode offers a deep and dramatic effect in the style of the first flanger pedals, Thru-Zero (also known as "Tape Flange") dramatically offers the distinctive swirling effect that occurs when the dry and modulating signals meet, and the Shadow flanger offers a smooth and silky highly resonant tone, with the jet-engine reaction that "whoosh" flange fans crave. The Mercury also includes an onboard delay control to explore that beautiful cosmic space between chorus and flange.

Out of the box, the Mercury Flanger offers a tremendous tonal range, but under the hood lies all the power and flexibility of this dynamic pedal. All pedals in the One Series are compatible with the Neuro Mobile app (free download for iOS and Android). Link the Mercury to the Neuro app and access Source Audio's free library of additional phaser, flanger, and chorus algorithms; each can be downloaded directly to your pedal. The Neuro app also offers an extended set of adjustable parameters including wet/dry mix, output level, tremolo, parametric EQ, low cut, advanced signal routing, and more. In addition, all pedals in the One Series are fully MIDI compatible when combined with the Neuro Hub (formerly Soundblox Hub), giving you the ability to save up to 128 presets.