Walrus Audio Eons - User Manual

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For Eons, man has thought the sound of thunder to be

from the heavens above, echoing boastfully over us as

we stay safe from its greatness. However, legend tells of

a stoic and indomitable beast residing in the highest

mountains seen and heard only by the most brash of

travelers. With gnarled and twisted horns, this creature

emits a sound thicker than Earth’s crust to command

attention and warn all who stand in his way. This is Eons.

VOLUME

The “Vol” knob sets the overall output

volume of the pedal. The “Voltage” and

“Gain” controls are very interactive with

the overall output volume of the pedal,

so there is plenty of volume on tap to

compensate.

VO LTAG E

POWER STUFF

The “Voltage” knob allows you to adjust the circuit’s

operating voltage. At its minimum, the main fuzz

section of the circuit will operate at around 3

volts, resulting in a “dying battery” sound. At its

maximum, the main fuzz section of the circuit will

operate at around 18 volts, resulting in a more open

and less compressed sound with added bass.

As you cut the voltage, the pedal will begin to

produce a starved sound and have a brighter

frequency response. As you approach noon

on the “Voltage” control, the pedal will begin

to have a gating effect. Lower voltages will also

drastically reduce the output volume of the

pedal. This knob behaves slightly differently

across all the different modes.

Got questions or need a repair? Email help@walrusaudio.com to talk

with a real live human about your Walrus gear!

This product comes with a limited lifetime warranty.

Click Here for more info.

9 volt DC, Center Neg.

100mA min*

*The use of an isolated power supply is

recommended for powering all Walrus Audio Pedals.

Daisy chain power supplies are not recommended.

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Summary

Power Stuff

Power Requirements

Specifies 9 volt DC, Center Neg. power with 100mA minimum. Recommends isolated power supply.

Volume Control

Volume Knob Function

Sets overall output volume and interacts with Gain and Voltage controls for ample output.

Voltage Control

Voltage Knob Operation

Adjusts circuit voltage (3V-18V) for tone shaping, affecting compression and frequency response.

Gain Control

Gain Knob Function

Sets gain amount, interactive with Voltage for gritty, starved, or overdriven sounds.

Bass Control

Bass Knob Operation

Allows cutting or boosting low frequencies after the fuzz circuit for tone shaping.

Treble Control

Treble Knob Function

Adjusts high frequencies to increase clarity or tame them based on rig and gain.

Mode Switch

Mode Switch Descriptions

Details five distinct modes (I-V) affecting clipping style and frequency response for varied tones.

The Walrus Audio EONS is a five-state fuzz pedal designed to deliver a wide range of aggressive and dynamic fuzz tones, inspired by the powerful and commanding sound of a mythical beast residing in the highest mountains. This pedal is crafted to provide a thick, attention-grabbing sound that can warn all who stand in its way, much like the gnarled and twisted horns of the creature it embodies.

Function Description

The EONS pedal functions as a versatile fuzz effect for guitar signals, offering five distinct clipping styles and frequency responses. It allows users to sculpt their fuzz tone through controls for volume, gain, voltage, bass, and treble, in addition to a five-position mode switch. The core of its functionality lies in its ability to manipulate the operating voltage of the fuzz circuit, which significantly alters the character of the fuzz from a starved, dying battery sound to an open, less compressed tone. The pedal's various modes provide different "flavors" of fuzz, ranging from traditional smooth silicon clipping to aggressive hard clipping with LED and silicon diodes.

Usage Features

The EONS pedal offers a comprehensive set of controls for shaping your fuzz sound:

Volume (Vol) Knob: This control sets the overall output volume of the pedal. It's important to note that the "Voltage" and "Gain" controls are highly interactive with the output volume, so the "Vol" knob provides ample range to compensate for any perceived volume changes when adjusting other parameters.
Voltage Knob: This is a key feature of the EONS, allowing you to adjust the circuit's operating voltage. At its minimum setting, the main fuzz section operates at approximately 3 volts, producing a "dying battery" sound characterized by a starved tone and a brighter frequency response. As you increase the voltage, the pedal moves towards 18 volts, resulting in a more open and less compressed sound with added bass. Around the noon position, the "Voltage" control can introduce a gating effect. Lower voltages will also drastically reduce the output volume, requiring adjustment of the "Vol" knob. The behavior of this knob varies slightly across the different modes.
Gain Knob: The "Gain" knob determines the amount of gain applied to your guitar signal as it passes through the fuzz circuit. This control is highly interactive with the "Voltage" knob. Pushing more gain through the pedal at lower voltage settings will yield grittier and dirtier sounds. Conversely, lower gain settings at lower voltages will produce very starved sounds, potentially causing the signal to cut out completely at extreme low settings. Users are encouraged to adjust to taste.
Bass Knob: This control allows you to cut or boost low frequencies after the fuzz circuit. It can be used to tighten up the low end or to increase the low-frequency emphasis. Starting at the noon position, turning the knob down removes bass, while turning it up adds bass.
Treble Knob: The "Treble" knob helps to increase clarity in the high-frequency region or to tame them, depending on your amplifier and rig. Similar to the bass control, you may find that at higher gain settings, you might want to add more treble, while at lower gain settings, you might prefer to roll the treble back. Starting at noon, turning the knob down cuts out highs, and turning it up allows more highs.
Mode Switch: This is a five-position rotary switch that offers different combinations of frequency response and clipping styles. Each position provides a distinct "flavor" of fuzz:
- Mode I (Silicon Soft Clipping): This mode delivers a traditional fuzz sound that is well-rounded, huge, compressed, and smooth.
- Mode II (Silicon Clipping with Bass Boost): This mode features silicon clipping with an added bass boost at the beginning of the circuit, resulting in a compressed and crunchy tone.
- Mode III (Germanium Soft Clipping): This mode offers a crunchy and dynamic sound, described as a blend between a distortion and a fuzz.
- Mode IV (LED Clipping Diodes): This mode utilizes LED clipping diodes, providing a slight high-end cut and a dynamically dark character.
- Mode V (Hard Clipping Silicon Transistors with LED and Silicon Diodes): This is the rowdiest mode, combining hard clipping silicon transistors with LED and silicon soft clipping diodes. It offers tons of gain, resulting in a compressed, loud, and angry sound.

It's important to note that since the Mode switch changes the internal gain and clipping style, the other controls will behave slightly differently across modes. There is an internal gain change designed to help even out the output level difference between the different clipping modes, but users may still need to adjust the "Vol" knob to set the overall output. The "Voltage" knob also heavily interacts with the volume and gain, so users may need to compensate by adjusting the "Gain" or "Volume" knobs to achieve their desired sound.

Maintenance Features

The Walrus Audio EONS pedal is designed for reliability and comes with a limited lifetime warranty, indicating a commitment to product longevity and customer support. For any questions or repair needs, users can contact Walrus Audio directly via email, ensuring access to real human assistance for their gear. The use of an isolated power supply is recommended for powering all Walrus Audio Pedals, and daisy chain power supplies are not recommended, which helps prevent noise and ensures optimal performance and potentially extends the life of the pedal by providing stable power.