Marshall Amplification JCM900 SL-X 2100, JCM900 4100, JCM900 4500, JCM900 4101, JCM900 4102 User Manual

JCM900

Handbook

1

Marshall Amplification plc

Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ, England

Tel: [phone]

Fax: [phone]

Web Site - http://www.marshallamps.com

Whilst the information contained herein is correct at the time of publication,

due to our policy of constant improvement and development, Marshall

Amplification plc reserve the right to alter specifications without prior notice.

Nov ‘98

SL-X 2100 & SL-X 2500

Master Volume Models

&

4100, 4500, 4101, 4102, 4501 & 4502

Dual Reverb Models

2

JCM 900

VALVE

SERIES

WARNING!

PLEASE READ THE FOLLOWING LIST CAREFULLY

A. ALWAYS fit a good quality mains plug conforming to the latest B.S.I.

standards (UK only).

B. ALWAYS wire the plug in accordance with the colour code attached to

the mains lead (UK only).

C. DO NOT attempt to remove the amplifier chassis. There are no user

serviceable parts inside.

D. ALWAYS have this equipment serviced or repaired by competent,

qualified personnel.
E. NEVER under any circumstances, operate the amplifier without an earth.
F. NEVER use any amplifier in damp or wet conditions.
G. ALWAYS ensure that the impedance of the amplifiers speaker or

speakers connected does not fall below the minimum impedance rating.
I. PLEASE READ this instruction manual carefully before switching on.

INTRODUCTION

Marshall have specialised in the production of valve amplification
since 1962.

The unique tone and playing response of the valve has formed the
cornerstone of the Marshall “Sound of Rock”, which we have
modified over the years to cope with the changing demands of the
evolving guitar player.

The JCM 900 models split into two distinct product ranges, the
Master Volume SL-X and the Dual Reverb. Though they share
common ancestry and have similar rear panel functions their
applications are quite different.