The Walrus Audio Sloe is a modulated reverb pedal. In a modulated reverb, the reverb tail itself is processed through modulation effects rather than the dry signal: GearNews' Julian Schmauch describes the basic idea as a reverb tail run "through a variety of chorus," flanger or vibrato effects1. The result is a reverb that moves and shimmers as it decays, which places the Sloe among Walrus Audio's ambient reverb pedals alongside the Slö, Fathom and Slöer. For a wider look at the category, see the site's Reverb Pedals page.
What it does
The Sloe's defining feature is the modulated tail. Where a plain reverb pedal repeats the note as it fades, the Sloe processes that fade through chorus, flanger or vibrato, so the tail takes on movement of its own1. Players who use ambient textures, swells and long decays are the natural audience for this kind of circuit.
The pedal's Sustain control addresses how long that tail lasts. Schmauch wrote: "Anyone who wants to lose themselves in the reverb tail until the end of time will likely enjoy the Sustain parameter"1. In practice, that means the pedal can hold a note's reverb tail going far longer than the note itself, useful for building washes of sound behind a part.
Price
GearNews listed the Sloe at $199.00 USD as of 8 June 2026, alongside £179.00 GBP and 211.00 EUR in other markets1.
Questions
What does the Walrus Audio Sloe do?
It is a modulated reverb pedal. The reverb tail is processed through modulation effects, described by GearNews as chorus, flanger or vibrato applied to the tail rather than the dry signal. It also has a Sustain parameter, which the same reviewer suggested suits players who want to lose themselves in the reverb tail for a long time.
Sources (1)
- The Best Reverb Pedals for Electric Guitar: From Budget to High-End, www.gearnews.com, 2026-06-08
