Walrus Audio Fathom Multi-Function Reverb Pedal

Walrus Audio Fathom Multi-Function Reverb Pedal - Image 2

Walrus Audio Fathom Multi-Function Reverb Pedal

Name: Walrus Audio Fathom Multi-Function Reverb Pedal
Brand: Walrus Audio
SKU: 45737
Availability: InStock

Retailing in the region of £199.99

On the menu for January 2026 are the Walrus Audio Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Walrus Audio Guitar Pedals today.

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Description

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The Fathom Reverb is a multi-function reverb pedal from boutique pedal wizards – Walrus Audio. It's a must-have for any ambient guitarist as you're able to achieve brand new reverb tones that you'd struggle to get from any other pedal but also has incredibly useable hall and plate verb sounds too.

Get Experimental

Ambient and experimental players are catered for with the Lo-Fi and Sonar reverb sounds.

Sonar reverb is fed with high and low octaves and the ability to blend the octaves with the X Knob for some truly otherworldly tones. Lo-Fi verb gives you a warm, thin AM sound that fattens up the reverb tone and gives you a stunning touch of grit and character to your reverb.

Modulation Toggle

One of the best ways to get your reverb tone to stand out is by adding a touch of modulation – like a chorusing effect – to the reverb in order for it to gain a subtle shimmer. The Fathom has a toggle that allows you to switch between Low, Medium and High modulation. You can also use the 'sustain' footswitch to extend your verbs for a dreamy ambient crescendo of tones.

Here's what Walrus Audio say about the Fathom Reverb

The Fathom is a feature-rich reverb with 4 different customized reverb algorithms to choose from. Easily go from tasteful, small room reverb to long, modulated trails dripping of ambient goodness. The toggle switch adds options for low, medium and high modulation. Use the dampen knob to fine tune the tone of the reverb's decay.

The Fathom features 4 different algorithms.

Hall – Wide, open and vast with decay that ends with high-frequency rolloff. X knob adjusts pre-delay.
Plate – Full Body reverb with a smooth decay. X knob adjusts pre-delay.
Lo-fi – Filtered reverb with decay ranging from warm, to thin AM-sounding radio. X knob adjusts filter width.
Sonar – Reverb fed with both a high and low octave with the ability to blend the octaves with the X knob.

Momentary Functions:

When the pedal is in off position, press and hold the Bypass Switch to temporarily activate the effect to add a moment of reverb. Releasing the switch turns the effect off.

Press and hold the Sustain Switch while the pedal is on, to sustain the reverb decay for a dreamy ambient decrescendo.

Trails Mode:

To turn trails mode on or off, unplug the pedal and press and hold down the Bypass Switch for two seconds while plugging the pedal back in.

Additional information

Weight	0.5 kg

Brand

Walrus Audio

Walrus Audio is an American boutique guitar effects pedal company based in Oklahoma City, known for its high-quality, innovative designs and artistic approach to pedal-making. Founded in 2011 by Brady Smith, the company quickly gained a reputation for creating pedals that offer a unique blend of rich, expressive tones and striking visual aesthetics.

Each Walrus Audio pedal is designed with meticulous attention to detail, often incorporating complex circuitry that allows for a wide range of sonic possibilities.

The pedals feature distinctive, hand-drawn artwork on their enclosures, making them visually appealing as well. Walrus Audio’s product lineup includes a variety of effects such as reverb, delay, overdrive, modulation, and more, and their pedals are widely appreciated by musicians for their creativity, durability, and superior sound quality.

Tags

Delay

A delay pedal records your signal and plays it back after a set time, creating echoes that can range from tight, slapback repeats to long, atmospheric trails. It’s one of the most versatile effects, used to thicken tones, add rhythmic depth, or build spacious, ambient layers. Analogue delays offer warm, decaying repeats that blend naturally with your tone, while digital units provide pristine echoes with precise control over time, feedback, and mix levels.

From classic rockabilly and tape-style echoes to modern looping and shimmer effects, delay pedals have become essential tools for shaping sound. They can make solos soar, rhythms pulse, or transform simple chord progressions into cinematic textures. Whether used subtly to add dimension or boldly to create soundscapes, a good delay pedal can completely redefine the feel and atmosphere of your music.

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New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Octave

An octave pedal shifts your guitar signal up or down by one or more octaves, blending the altered pitch with your original sound to create a fuller, more complex tone. It can add a deep, bass-like layer underneath your playing or a shimmering high octave on top for lead lines and solos. Classic analogue octave pedals often produce slightly gritty, organic sounds, while modern digital versions track more precisely and can offer multiple octave ranges.

Octave pedals are great for thickening single-note riffs, creating synth-style textures, or even mimicking bass parts when playing alone. They pair well with fuzz or overdrive pedals for massive, harmonically rich tones. Whether you’re after vintage Hendrix-style octave fuzz or a modern polyphonic sound that tracks chords cleanly, an octave pedal opens up a world of creative possibilities and adds real weight and character to your tone.

Reverb

A reverb pedal is like the rich sauce that ties every flavour on the plate into one smooth experience. It adds depth, warmth, and atmosphere — the sonic equivalent of a perfectly reduced glaze that lingers on the tongue. Whether you’re after the subtle ambience of a cosy café (spring or plate reverb) or the grand echoes of a cathedral (hall or shimmer reverb), this is where your tone breathes and expands. A touch of reverb can turn a dry sound into something lush and inviting — but pour on too much, and it’s all you can taste. Used with finesse, it’s the finishing touch that transforms your tone from plain to unforgettable.

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