Marshall Amplification JTM60 Bedienungsanleitung

JTM Series

JTM60

Valve Combo

Handbook

Marshall Amplification plc

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

Tel: (01908) 375411

Fax: (01908) 376118

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.

Jan ‘99

WARNING!

Please read the following list carefully.

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

standards where necessary (UK only).

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

mains lead.

NEVER under any circumstances operate the amplifier without an

earth.

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

NEVER attempt to replace fuses or valves with the amplifier connected

to the mains.

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

serviceable parts.

ALWAYS have this equipment serviced or repaired by competent

qualified personnel.

NEVER use an amplifier in damp or wet conditions.

DO NOT switch the amplifier on without the loudspeaker connected

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

DO NOT obstruct airflow around amplifier.

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 all-

valve 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.

Vintage Overdrive: Switch to the Boost

channel which is indicated by the red L.E.D.

Again pickups will obviously influence

settings but you will probably find that Gain

settings of around 5 or 6 are quite adequate,

the key however is to increase the Master

Volume level. As our vintage amps didn’t

really have a lot of pre-amp gain, guitarists

used to crank the volume up to be heard

which resulted in the natural classic

Marshall Valve overdrive roar.

Alternatively the Clean Channel with its

volume on maximum gives a very satisfying

vintage type overdrive.

As far as tone settings go we would suggest

that you start with the tone controls set at

about 5 and then adjust to taste from there.

Modern Hi-Gain: Switch to the Boost

channel indicated by the Red L.E.D.

Turn the gain up to full and set the volume

for the desired level. Tone controls are set to

taste, though probably with the Middle

control lower than the Bass and Treble

controls.

The best advice we could really offer is to

simply experiment and above all enjoy the

pure valve tone of your Marshall JTM 60.

Front Panel Functions.

1) Footswitch Jack

Jack socket for connection of P801

Footpedal for channel switching.

2) Push Channel Switch

Push switch for panel switching of the

channel. The Push Switch is inoperative

when the Footswitch is connected.

3) Input Jack

Jack socket for the input of the guitar.

4) Volume Control

Controls the Volume of the Normal channel.

5) Bass Control

Controls the lower frequencies in the tone of

the Normal channel.

6) Middle Control

Controls the middle frequencies in the tone

of the Normal channel.

7) Treble Control

Controls the upper or treble frequencies in

the tone of the Normal channel.

8) L.E.D.

Indicates channel. Green-Normal

Red-Boost.

9) Gain Control

Controls the amount of Gain on the Boost

channel.

10) Volume Control

Controls the Volume of the Boost channel.

11) Bass Control

Controls the lower frequencies in the tone of

Boost channel.

12) Middle Control

Controls the middle frequencies in the tone

of the Boost channel.

13) Treble Control

Governs the high end frequencies in the

Boost channels’ tone.

Note: The Tone Controls are interactive and

adjusting one can effect the relative amounts

of the others. Experimentation is the best

way of finding your own personal favourites.

14) Parallel Mix Effects Control

Governs the amount of effected signal in the

overall tone when used in conjunction with

external effects through the parallel loop.

15) Normal Reverb

Controls the amount of Reverb on the

Normal channel.

16) Boost Reverb

Controls the amount of Reverb on the Boost

channel.

17) Volume

Controls the overall volume of the combo.

18) Standby Switch

Controls the H.T. supply to the valves and

allows the valves to remain heated when not

in use.

19) Power Switch

On /Off Switch for mains power to the

amplifier.

Note: To prolong the life of the valves it is

always advisable to switch on the Mains

Power Switch (item 19) about 2 minutes

before switching on the Standby (item 18).

This allows the valves to heat up to full

working temperature before use. On

switching off, the Standby should always be

switched before the Power Switch.

Rear Panel Functions.

1) Mains Fuse

Protects the amplifier and mains supply in

the event of a fault.

Check the label on the back of the amp for

the correct value. Always replace fuses with

the correct type and rating.

2) Mains Input

Connects the amplifier to the mains power

supply.

3) Parallel FX Loop Return Jack

Jack socket for connection from the output

of an external effects processor.

Note: A parallel FX Loop is best suited for

use with external effects processors which

require a certain amount of dry or uneffected

signal in the overall tone. Time based effects

such as Delay and Chorus are typical

examples of the effects best suited to this

type of Loop.

4) Parallel FX Loop Send Jack

Jack socket for connection to the input of an

external effects processor.

5) Series FX Loop Return Jack

Jack socket for connection to the output of

an external effects processor.

6) Series FX Loop Send Jack

Jack socket for connection to the input of an

external effects processor.

Note: The Series Loop is best suited to

effects that require no dry signal such as

Compressors or Graphic Equalisers.

7) Line Out

The JTM60’s Line Out is switchable

between a speaker Emulated signal

(pre the power amp), and a non Emulated

(post the power amp ) signal.

The Emulated Output captures the tonality

of Vintage loudspeakers like no other D.I.

furthermore this output is unaffected by the

Master Volume controls therefore allowing

the JTM 60’s output to be turned off whilst

still providing silent recording facilities.

The D.I. Output is via an XLR type

connector which allows this system to be run

into either (a) a line level balanced input (b)

a line level unbalanced input or (c) a low

level unbalanced input.

✪ Please refer to the JTM 60 XLR Out

diagrams (Page 6-7) for correct connections.

8) Pre/Post Switch

Allows Line Out selection between a

speaker Emulated signal (pre the power

amp) and non-emulated (post the power

amp).

9) Presence Control

This Master Presence control adjusts the

amount of top end frequencies in the overall

tone adding crispness and bite.

10) Speaker Output Internal

Jack for connection to internal 16 Ohm

speaker.

11) Speaker Output Extension Jack

For connection to an external 16 Ohm

speaker (such as the Marshall JTM 112C

1x12″).

Note: The JTM 60 will deliver 60 Watts into

either one or two 16 Ohm speakers, ie. 16 or

8 Ohm total impedance. The unit should not

be driven into a load of less than 8 Ohms.

If you unplug the internal loudspeaker it is

possible to connect a single 8 Ohm cabinet

to the extension Speaker Output only.

However, when the internal speaker is

connected only a 16 Ohm extension cabinet

may be used.

It is important to follow these instructions as

failure to do so may lead to the amp running

into the wrong impedance, which will

ultimately cause damage.

MAINS INPUT

230V ~ 50 Hz 160 Watts

MAINS FUSE

120V—T3A

230V—T1.6A

WARNING!No user serviceable parts inside; refer servicing to qualified personnel only.

AVIS! Risque de choc. Ne pas ouvrir.

WARNING! Fire & Shock Hazard:

Do not expose this unit to rain or moisture. This Apparatus Must Be Earthed. Do not open.

CAUTION! Replace fuse with same type and rating only disconnect mains supply before opening.

ATTENTION! Replacer le fusible par le meme type et le meme calibre Debrancher a la prise secteur

avant D,ouvrir.

Manufactured in Great Britain by:

Marshall Amplification plc, Bletchley, Milton

Keynes, England.

60 watts RMS into 8/16Ω.

16Ωextension speaker

16Ωinternal speaker

(Refer to manual for details)

PARALELL

FX LOOP SERIES

FX LOOP

Return ReturnSend Send

D.I.OUTPUT

Pin 1—OV, Pin 2—High, Pin 3—Low (Refer to manual)

Presence

Emulated

PWR Amp

Line Out

OUTPUT

Internal Extension

VOLUME BASS MIDDLE TREBLE NORMAL

REVERB BOOST

REVERB VOLUME

BOOST MASTER

—

10 0

—

10 0

—

10 0

—

10 0

—

10 0

—

10 0

—

10 0

—8

STANDBY

POWER

GAINVOLUME

NORMAL BASS MIDDLE TREBLE

10 0

—

10 0

—

PUSH

CHANNEL

FOOT

SWITCH INPUT

RED

GREEN

200

—8

(Parallel Mix)

EFFECTS

JTM 60 Front Panel

JTM 60 Rear Panel

JTM 60 XLR Out diagram ✪

1 2 4 6

5 7 9 10 11 12 13 14 15 16 17 18 19

1 2

XLR Channel Input On Mixer

(Note: Line Level-Approx OdBV)

2 Core Screened Balanced Mic Lead

Unbalanced XLR to Jack Screened Lead

Jack Plug Line Level Jack Input On Mixer Etc.

Jack Plug

Low Level Jack Input On Mixer (ie

Mic Input)

3 4 5 6 7 8 9 10 11

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