Walrus Audio Fundamental Reverb
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Essential Information About the Walrus Audio Fundamental Reverb Pedal
Essential Information About the Walrus Audio Fundamental Reverb Pedal
- 3 must-have reverbs in a single pedal: Hall, Spring, and Plate, covering the essentials for both studio and live use.
- Immediate simplicity : three slider controls (Decay, Tone, Mix) and a mode selector, nothing superfluous.
- Ultra-clear readability of settings on stage thanks to the sliders, ideal for quick adjustments between songs.
- Pedalboard-friendly format : top-mounted connections and 6.35mm mono Jack I/O, made in the USA.
Manufacturer Information
Walrus Audio
https://www.walrusaudio.com
customerservice@walrusaudio.com
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An "essential" reverb designed to get straight to the sound
The Fundamental Reverb embraces a deliberately straightforward approach: offering the main reverb families most used by guitarists (Hall, Spring, Plate), with clear ergonomics and instant usability. The idea is not to overwhelm the user with parameters, but to provide access to musical atmospheres that are easy to dial in, capable of ranging from subtle depth to more enveloping washes. Positioned in an efficiency-oriented range, it aims for "plug and play" while maintaining a true palette of textures.
Who is the Fundamental Reverb for, and in which styles does it make a difference?
This guitar reverb pedal is aimed at musicians seeking a reliable and quick-to-adjust solution: beginners looking for a versatile first reverb, experienced guitarists wanting a simple-to-integrate reverb, or live players needing immediate visual control. It is particularly comfortable in pop, rock, indie, blues, worship, and light ambient styles, while remaining relevant for adding depth to a clean tone, thickening a crunch sound, or smoothing a saturated rhythm without muddying the attack.
In the studio, it allows placing the guitar in a coherent space quickly: a Plate for a "mix-ready" presence, a Spring for a more organic color, or a Hall to widen the perceived stereo field (even in mono setups) and create a sense of grandeur. Live, its format and top-mounted jacks facilitate integration into a compact pedalboard, with intuitive access to the Mix control to adapt the effect to the room's acoustics.
Technical specifications
| Effects | Reverb | Type | sector |
| Format | Pedal | Use | electric guitar |
| EQ | Tone | Color | Black |
Questions frequently asked
What types of reverb does the Walrus Audio Fundamental Reverb offer?
Three modes are available: Hall, Spring, and Plate. The mode selector allows quick adjustment of the sound space to the played part.
Does the Fundamental Reverb operate with a standard 9 V power supply?
The required power supply is 9 V DC, with a minimum current of 100 mA. Battery operation is not supported.
How to adjust the reverb length and tone?
The Decay, Tone, and Mix sliders control the tail length, brightness, and level relative to the dry sound, respectively. A darker Tone helps reduce the reverb presence in the high frequencies. A moderate Mix keeps the attack clear.
Is the pedal suitable for a compact pedalboard?
With its dimensions of 111 x 60 x 60 mm and weight of 200 g, it occupies a small space. The 6.35 mm mono input/output jacks are located on top for easy wiring.
Can it be used on an electric guitar in concert?
This pedal is designed for electric guitar and features a footswitch On/Off. The mono 6.35 mm jack output allows direct integration into an effects chain.



