Marshall Amplification 4100 (JCM900) H User Manual

Marshall Amplification plc,
Denbigh Road, Bletchley,
Milton Keynes, MK1 1DQ
England
TEL: (01908) 375411 FAX: (01908) 376118
www.marshallamps.com
Whilst the information contained herein is correct at the time
of publication; due to our constant improvement and
development, Marshall Amplification plc reserve the right to
alter specifications without prior notice.
BOOK 00064 - 00
4100 DUAL REVERB
HANDBOOK
JCM 900
VALVE SERIES
JCM 900
VALVE SERIES

Marshall Amplification 4100 (JCM900) H Specifications

General

Brand	Marshall Amplification
Model	4100 (JCM900) H
Category	Musical Instrument Amplifier
Language	English

Summary

Important Safety Instructions

Front Panel Functions

Input and Gain Controls

Controls for instrument input, channel A gain, and channel B lead gain for tone shaping.

Tone and Reverb Controls

Passive EQ, reverb amount for each channel, and individual channel master volumes.

Channel Switching and Power

Channel selection, footswitch connection, standby mode, and main power switch.

Rear Panel Functions

Effects Loop and Output

Controls for effects loop level, send/return sockets, and line outputs for recording or external amps.

Speaker and Power Configuration

Impedance selector, speaker output jacks, output mode switch, and mains power input/fuse.

Valve Failure Indicators

LEDs and fuses indicating output valve status and protection for continued operation.