---
product_id: 87735140
title: "Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal"
brand: "walrus audio"
price: "16948259₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/87735140-walrus-audio-ryan-adams-defcon4-preamp-guitar-effect-pedal
store_origin: VN
region: Vietnam
---

# True Bypass 10dB Boost 3-Band EQ Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal

**Brand:** walrus audio
**Price:** 16948259₫
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate Your Sound Game!

## Quick Answers

- **What is this?** Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal by walrus audio
- **How much does it cost?** 16948259₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/87735140-walrus-audio-ryan-adams-defcon4-preamp-guitar-effect-pedal)

## Best For

- walrus audio enthusiasts

## Why This Product

- Trusted walrus audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Package:** Includes manual, pick, and sticker for a personalized touch.
- • **Versatile Control:** 5-position rotary switches for a range of tonal options at your fingertips.
- • **Seamless Switching:** True bypass ensures your tone remains pure when the pedal is off.
- • **Unleash Your Sound:** Experience a 3-band EQ that lets you sculpt your tone with precision.
- • **Boost Your Performance:** Enjoy a powerful 10dB boost that elevates your guitar's presence.

## Overview

The Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal is a versatile tool designed for musicians seeking to enhance their sound. Featuring a 3-band EQ, a 10dB boost, and true bypass functionality, this pedal allows for seamless tonal adjustments and pure sound integrity. With its 5-position rotary switches, it offers a wide range of tonal possibilities, making it an essential addition to any guitarist's setup.

## Description

From the mind of Ryan Adams comes a new guitar utility with more tricks up its sleeve than a 1980s supervillain. The Defcon4 works as a preamp and EQ to meticulously craft your guitar's sound. Bring peace time to your tone and avoid tedious amp tweaking during a set by using the Defcon4 to easily switch from single coil to humbucking instruments with a quick twist of the rotary knobs. When the Launch switch is engaged, go into Defcon 1 and activate a searing boost for your guitar. Use the Low (IV), Mid (III) and High Band (II) rotary knobs to cut and boost frequencies of your signal. The toggle switches will activate or bypass each frequency. When activated, the corresponding illuminated numbers will turn on. Flip the launch switch to go to "Defcon1" and activate a 10db MOSFET boost. "I want this to look like someone from the '80s was pushing the technology they had available at the time." - Ryan Adams The Defcon4 comes in black texture enclosure with artwork inspired by the 1983 movie WarGames and Ryan's love for all things '80s nostalgia. The die-cast enclosure's exact size is 3.68 inch. x 4.67 inch. x 1.547 inch.. Power requirements are 9VDC, center negative (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.

## Features

- Three band EQ
- 10db Mosfet Boost
- True Bypass
- 5 Position Rotary Switches
- Manual, Pick and Sticker included

## Product Details

- **Brand:** Walrus Audio
- **Style:** Preamp
- **Color:** Ash
- **Voltage:** 9 Volts
- **Amperage:** 100 Milliamps

## Images

![Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal - Image 1](https://m.media-amazon.com/images/I/91tRe1my5QL.jpg)
![Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal - Image 2](https://m.media-amazon.com/images/I/91EKWp7TjFL.jpg)
![Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal - Image 3](https://m.media-amazon.com/images/I/91O3rA8LnIL.jpg)
![Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal - Image 4](https://m.media-amazon.com/images/I/81i303a0lsL.jpg)
![Walrus Audio Ryan Adams DEFCON4 Preamp Guitar Effect Pedal - Image 5](https://m.media-amazon.com/images/I/31Eq+gV-QxL.jpg)

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**Shop now:** [https://www.desertcart.vn/products/87735140-walrus-audio-ryan-adams-defcon4-preamp-guitar-effect-pedal](https://www.desertcart.vn/products/87735140-walrus-audio-ryan-adams-defcon4-preamp-guitar-effect-pedal)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-08*