Marshall Amplification Valvestate 200 AVT User Manual

1
ENGLISH
From Jim Marshall
I would like to thank you personally for selecting one of our
Valvestate 2000 AVT amplifiers.
Ever since its initial launch in the early 1990’s, the original
Marshall Valvestate technology received worldwide acclaim and set a
new standard in affordable quality amplification. However, my
dedicated team of designers are constantly looking for methods to
make our amplifiers sound even better. As they are all guitar players
themselves this process has become a passion within the design
department.
As the name Advanced Valvestate Technology (AVT) suggests,
your new amplifier benefits from their research and utilises their
latest circuit innovations, all of which are totally unique to Marshall.
By emulating the feel and response of an all-valve amplifier even
more closely, the new AVT range perform brilliantly and represent
yet another major step forward in guitar sound technology.
I suggest that you read this manual thoroughly before operating
your new amplifier and keep it in a safe place for future reference.
This will help you to derive maximum enjoyment from our Advanced
Valvestate Technology.
Wishing you every success.
Yours Sincerely,

Marshall Amplification Valvestate 200 AVT Specifications

General

Brand	Marshall Amplification
Model	Valvestate 200 AVT
Category	Musical Instrument Amplifier
Language	English

Summary

Important Safety Instructions

General Operating and Handling Safety

Essential safety guidelines for operating the amplifier, covering usage and handling.

EMC, Low Voltage, and FCC Compliance

Information on EU directives (EMC, LV) and FCC compliance, including interference mitigation.

Equipment Modifications, Ventilation, and Plug Safety

Warnings against modifications, ensuring ventilation, and safety advice for electrical plugs.

Introduction

What is AVT?

Explanation of Advanced Valvestate Technology and its evolution in Marshall amplifiers.

Valve Drive Preamp

Details on the ECC83 valve in the preamp stage and its sonic characteristics.

Power Amp Delivery

Information on the power stages and their design for live performance environments.

'Extended Bass Response' Loudspeakers

Description of specially developed speakers for enhanced bass response in compact cabinets.

DFX Onboard Overview

Overview of onboard digital effects (DFX) and their integration into the amplifier's tone.

Front Panel Features

Preamp Section Controls

Details the four channels and their controls within the preamp section.

Overdrive Tone Controls

Shared Bass, Middle, Treble EQ for OD1/OD2, offering classic Marshall sound shaping.

Master Section Controls

Controls for overall amplifier volume and high-frequency response (Presence).

FX Section Controls

Management of external FX loop and internal digital effects, including mix, program, and adjustment.

DFX Program Selection and Power

Selecting onboard effects, viewing the program table, and operating the power switch.

AVT150 & AVT150H Rear Panel Features

Mains, Speaker, and Accessory Connections

Connections for power, speakers, footswitch, headphones, and line output.

FX Loop Operation and Hints

Details the mono parallel FX loop, connections, level setting, and usage advice.

AVT275 Rear Panel Features

Mains, Speaker, and Accessory Connections

Connections for power, speakers, footswitch, and headphones.

Emulated Outputs and FX Loop

Provides stereo emulated line outputs and details the stereo parallel FX loop, including connections and hints.