Every player needs space to grow, space to experiment, and space to flourish. Get the space you need with the Walrus Fundamental Reverb pedal.

The Fundamental Reverb delivers the essential building blocks of ambient tone in a straightforward layout that welcomes beginners and offers enough depth for the experienced player to thrive. With three classic reverb types, Hall, Spring, and Plate, you can shape your sound from wide, atmospheric spaces to tight, focused reflections. Hall offers spacious decay perfect for ambient pads or open chord work, Spring brings the splashy character of vintage amp reverbs, and Plate adds a dense, bright texture that's great for leads and rhythmic clarity.

Decay, Tone, and Mix faders give you instant control over how much reverb, how bright it is, and how much of it blends with your dry signal, making it easy to find the right balance. Trails mode is active by default, allowing your reverb tails to naturally fade out when bypassed, or you can deactivate it for hard cutoffs. Like the rest of the Fundamental Series, it’s designed and assembled at Walrus Audio’s Oklahoma City shop with a focus on tonal quality, reliability, and no-fuss operation that holds up in a live mix or recording chain.

Walrus Audio Fundamental Series: Reverb Features

• Three reverb algorithms—Hall, Spring, and Plate—cover a wide range of ambient textures from expansive and atmospheric to tight and focused
• Hall mode offers long, spacious decay ideal for ambient playing and open chords
• Spring mode captures the splashy, vintage character of classic tube amp reverbs
• Plate mode delivers a bright, dense reverb that complements leads and rhythmic parts
• Decay, Tone, and Mix faders provide quick control over reverb length, brightness, and wet/dry balance
• Trails mode allows for natural reverb fade when bypassed, or can be turned off for instant cutoff
• Straightforward design is approachable for beginners while offering depth and control for seasoned players
• Built and assembled by Walrus Audio in Oklahoma City, designed to perform on stage or in the studio

Walrus Audio Fundamental Series: Reverb Specifications

• Buffered Bypass
• The Reverb comes in a Black finish with blue-green and off-white ink.
• The diecast enclosure’s exact size is 4.33" x 2.16" x 1.61”.
• Power requirements are 9VDC (100mA minimum).
• The use of an isolated power supply is recommended for powering all Walrus Audio Pedals.
• Daisy chain power supplies are not recommended. Power supply not included.