Marshall Amplification JMD100

Owners Manual
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Marshall Amplification JMD100 Specifications

General

Power Output	100 Watts
Power Tubes	4 x EL34
MIDI Control	Yes
Effects	Reverb, Chorus, Phaser, Flanger, Delay
Speaker Outputs	2
Speaker Configuration	Requires external speaker cabinet
Type	Hybrid Guitar Amplifier
Channels	4 (Clean, Crunch, OD1, OD2)

Summary

Getting Started and Powering Up

Initial Setup and Safety Precautions

Covers speaker connection, volume, mains connection, and electrical supply checks.

Power On and Standby Procedures

Details the correct sequence for powering on, warming up valves, and using standby.

JMD:1 Front Panel Controls

Input, Channel Selection, and Presets

Covers input jack, manual/channel modes, and storing/recalling presets.

Pre-Amp Selection and Gain Stages

Details selecting from 16 pre-amps and adjusting Gain, EQ, and Volume.

Effects Section Parameters

Power and Standby Switch Functions

Describes the main power switch and the standby switch for warm-up and silent operation.

JMD:1 Front Panel - Pre-Amp Details

Clean and Crunch Pre-Amp Models

Overdrive and Lead Pre-Amp Models

JMD:1 Front Panel - Control Functions

Lead 16 Modern Pre-Amp Description

Detailed Pre-Amp and Effects Control Functions

Explains the function of Gain, Bass, Middle, Treble, Volume, Modulation, and Delay controls.

JMD:1 Rear Panel Connectivity

Power, MIDI, and Control Interfaces

FX Loop and Speaker Output Configuration

Explains the Serial/Parallel FX Loop and the various speaker output options.

Footcontroller and MIDI Operation

Footcontroller Modes and Programming

MIDI Program Change Functionality