Marshall JTM Series Owner`s Manual

JTM Series

JTM60

Valve Combo

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

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.

Marshall Amplification plc

Tel: [phone]

Fax: [phone]

Jan ‘99

Handbook

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WARNING!

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Please read the following list carefully.

A.

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

standards where necessary (UK only).

B.

ALWAYS wire the plug according to the colour code attached to the

mains lead.

C.

NEVER under any circumstances operate the amplifier without an

earth.

D.

NEVER attempt to by-pass the fuses or fit ones of the incorrect value.

E.

NEVER attempt to replace fuses or valves with the amplifier connected

to the mains.

F.

DO NOT attempt to remove the amplifier chassis, there are no user

serviceable parts.

G.

ALWAYS have this equipment serviced or repaired by competent

qualified personnel.

H.

NEVER use an amplifier in damp or wet conditions.

I.

DO NOT switch the amplifier on without the loudspeaker connected

and ensure that any extension cabinets used are the correct impedance.

J.

DO NOT obstruct airflow around amplifier.

K.

PLEASE read this instruction manual carefully before switching on.

Introduction

Marshall Amplification has been
inextricably linked with valve amplification
since our very beginning in 1962. Products
such as the original Bluesbreaker combos,
JTM 45 and Super-Lead heads were all
destined to be, and have become, classics in
their own right. All of these special Marshalls
produced their magical tone by driving the
guitar through an all valve pre-amp into a pure
valve power-amp. The JTM range carry on this
grand tradition, but meet the demands of
contemporary guitarists by providing features
such as Channel Switching, Reverb, Effects
Loop and Speaker Emulated output. Their all­valve circuitry is capable of the fullest range of
classic sounds from clean to crunch and high
gain drive, with superb styling and specially
designed ‘Heritage’ loudspeakers giving the
JTM range the Vintage looks to match their
Classic range of tones.

Using the JTM 60

The JTM 60 is easily capable of producing a
wide range of usable quality tones, from glassy
vintage clean, Bluesbreaker type singing lead
and crunchy chord work, to full blown modern
high gain crush. What’s more the controls are
simple and intuitive to use.

Whilst one should always bear in mind that
taste in tone is very subjective here follows a
few simple suggestions for getting some great
sounds from your JTM 60.

Clean: Make sure you select the Normal
channel on the JTM 60. This is indicated by
the green L.E.D. The strength and height of
your pick-ups will have a great influence on
the level you should set the volume on this
channel before overdrive sets in. Generally
speaking the Channel Volume control should
be set below half way for totally clean sounds,
with the Master Volume set higher. The tone
network should be set with all three controls at
5 initially, then adjusted to suit the type of
guitar and sound required.

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