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Vox Valvetronix VT20+

Vox Valvetronix VT20+
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Vox Valvetronix VT20+ Specifications

General IconGeneral
Amp Models33
Valve12AX7
Number of Channels1
EQBass, Middle, Treble
Number of Programs99
Speaker8"
Dimensions422 x 222 x 376 mm
Weight8.8 kg
Amplifier TypeModeling
Inputs1 x AUX
OutputsHeadphone Out
FootswitchOptional

Summary

Safety Instructions

Introduction to the Valvetronix Amp

Welcome

Greeting and overview of the manual's purpose.

Main Features

Highlights key functionalities and technologies of the amplifier.

Quick Start Guide

Setup

Guide for initial connection and power-up of the amplifier.

Checking Preset Programs

Navigating and listening to the amp's pre-loaded preset sounds.

Switching User Programs

How to select and switch between saved user programs.

Top and Rear Panel Overview

Top Panel Controls

Explanation of the controls and jacks on the amplifier's top surface.

Rear Panel Connections

Explanation of the rear panel jacks and ports for external devices.

Operating Modes Explained

Preset Mode

Using pre-programmed sounds and amp models.

Manual Mode

Using the amp like a traditional guitar amp with physical knob settings.

Channel Select Mode

Recalling user-created programs via channel selection.

Creating and Saving Custom Sounds

Creating a Sound

Step-by-step guide to building a new sound from scratch.

Adjusting Noise Reduction

Setting up the noise gate feature to minimize unwanted noise.

Saving a Program

How to store custom sounds and settings in memory.

Checking Original Values

Viewing saved program parameter settings.

Restoring Factory Settings

Resetting the amp to its original default state.

Using the Built-in Tuner

Tuner Operation

How to use the built-in guitar tuner function.

Using the VOX VFS5 Foot Switch

Foot Switch Operations

Controlling amp functions like channel/effect switching with the VFS5.

Signal Path and Valve Reactor Technology

Signal Path Overview

Diagram illustrating the audio signal flow through the amplifier.

Valve Reactor Technology Explained

Details on the amp's core analog power amp technology.

Amp Models and Effects

Amp Models

Descriptions of the 33 modeled amplifier sounds.

Pedal Effects

Details on available stompbox-style effects and their parameters.

Modulation and Delay Effects

Explanation of modulation and delay effect types and settings.

Reverb Effects

Descriptions of the three available reverb types.

Troubleshooting Common Issues

Power Issues

Solutions for problems related to the amplifier not turning on.

No Sound Issues

Diagnosing and fixing problems with sound output.

Insufficient Volume

Addressing low output levels and volume control issues.

Phones Jack Issues

Troubleshooting problems with the headphone output jack.

Effects Not Applied

Resolving issues where effects are not functioning correctly.

Aux In Issues

Problems and solutions for the auxiliary input jack.

Technical Specifications

Technical Specifications

Detailed product specifications, including power, dimensions, and weight.

Song Preset Program List

Song Title List

List of songs and their corresponding amp models/settings.

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