Marshall Amplification Class 5 H Valve Amplifier User manual

Class5H
OWNER’S MANUAL

FFrroomm
JJiimm MMaarrsshhaallll
I woul personally like to congratulate you on your
purchase of the Marshall Class5 amplifier.
One of my gol en rules has been, an always will be,
to listen to what guitarists want from their amplifiers.
When the company starte receiving numerous
requests to pro uce an amplifier containing all the
harmonics, feel an tone of a classic Marshall stack, but
at a fraction of the size an volume, I set my
experience R&D team the challenge.
In response, they have create the Class5, a single
channel, 5 Watt, all-valve hea brimming with classic
Marshall tone. I was amaze when I hear what this
small amp coul o, it really oes punch way above its
weight an contains everything from bright cleans to
classic crunch tones.
The high quality construction is something I’m
particularly prou of too. Every Class5 amplifier is
create from specially source components an
materials by our highly skille an e icate shopfloor
staff at our factory in the heart of the UK. Their attention
to etail an unwavering stan ar s mean your new
amplifier will truly stan the test of time.
I woul like to take this opportunity to wish you every
success with your new Marshall Class5 amplifier.
Yours Sincerely,
Dr Jim Marshall OBE

1
The Class5H is a 5 Watt, all-valve, Class A
amplifier in a hea format.
This little amplifier has been manufacture in
response to a very common request we have
receive over the years, a request which
nearly always contains the phrase “Can we
have the Marshall Stack soun , but at a much
lower volume”. So here it is, a ‘baby Plexi’ if
you like!
Incorporating a very simple layout of Volume,
Treble, Mi le an Bass, it is esigne to
eliver those great cranke tones with
minimum fuss an environmental abuse. The
Class5H is a must for recor ing an is i eal for
rehearsals an smaller gigs. A hea phone
output is also inclu e for private practice.
Two ECC83 (12AX7) ouble trio e pre-amp
valves an a single EL84 pento e power amp
valve ensure that the signal path is pure Class
A valve tone from beginning to en .
‘Class A’ topologies are known for their
generous secon harmonic istortion
characteristic, which is very pleasant to the ear
an results in some classic over rive tonality.
Cranking the amp up to it’s full ‘ eceivingly
respectable’ output will yiel some re hot
Marshall roar which can be riven into either
8Ωor 16Ωextension cabinets.
ENGLISH
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FFoollllooww aallll iinnssttrruuccttiioonnss aann hheeee aallll wwaarrnniinnggss
KKEEEEPP TTHHEESSEE IINNSSTTRRUUCCTTIIOONNSS!!
** EEUURROOPPEE OONNLLYY -- NNoottee::This equipment has been teste an foun to comply with the requirements
of the EMC Directive (Environments E1, E2 an E3 EN 55103-1/2) an the Low Voltage Directive in the E.U.
** EEUURROOPPEE OONNLLYY -- NNoottee::The Peak Inrush current for the Class5H is 8 amps.
Power 5W
Pre-amp Valves 2 x ECC83
Power Amp Valves 1 x EL84
Dimensions W, H, D (mm) 496 x 200 x 210
Weight (kg) 6.4
TTeecchhnniiccaall SSppeecciiffiiccaattiioonn

IIMMPPOORRTTAANNTT:: RReeaa bbeeffoorree ppoowweerriinngg--uupp
Before powering-up your Marshall Class5
amplifier, you must ensure that an appropriate
speaker cabinet is connecte to the
correspon ing impe ance matche
lou speaker jack on the rear panel, (unless
‘hea phone’ mo e is selecte ). Failure to o
so coul result in serious amage being
cause to your amplifier. Always use an
unshiel e lou speaker cable to connect an
amplifier to a lou speaker cabinet, never use a
screene (shiel e ) guitar cable. After use,
always allow the amp to cool own before
moving.
IIMMPPOORRTTAANNTT NNOOTTEE::
Please refer to the ‘Warning’ plate on
un ersi e of the pro uct.
11.. PPoowweerr SSwwiittcchh
This is the On/Off switch for the mains electric
power to the amplifier.
NNOOTTEE::Please ensure the amplifier is switche
off an unplugge from the mains electricity
supply whenever it is move !
22.. MMaaiinnss IInniiccaattoorr
This re in icator will light up whenever the
amp is plugge into the mains an the Power
Switch (1) is on.
NNOOTTEE::Please allow a minute or so for the
amp to ‘warm-up’ after switching on. This is
normal with valve amplifiers as valves nee to
reach their ‘working temperature’ to operate
properly.
33.. BBaassss
This controls the amount of low frequencies
(bottom-en ) in your tone.
44.. MMiillee
This controls the mi -range of your soun .
Turning this up will make your guitar soun
fatter an fuller.
55.. TTrreebbllee
This control etermines the amount of high
frequency (top-en ) that is present an gives
your guitar tone a efining e ge as it is turne
up.
66.. VVoolluummee
This control sets the overall output volume of
the amplifier.
TTOONNAALL TTIIPP::It is practical to set this first to suit
the environment in which you are playing, as
the position of this volume largely ictates the
optimum positions for the other controls.
77.. IInnppuutt JJaacckk SSoocckkeett
This is where you plug your guitar into the
amp. You must use a screene (shiel e )
guitar cable. Never use an unscreene
(unshiel e ) speaker cable. The input to any
guitar amplifier is a very sensitive part of the
signal path an is very sensitive to electrical
interference, hence the nee for a screene
guitar cable. Your screene cable shoul be of
goo quality. If you are in any oubt regar ing
this, your Marshall ealer will be more than
happy to help an a vise you.
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WWAARRNNIINNGG::Although your Class5 amplifier
has 2 extension speaker outputs (an a
hea phone socket), never attempt to connect
cabinets to both extension speaker outputs
simultaneously. Only use one speaker output
at a time, the recommen ations are: 1x8 Ohm
or 1x16 Ohm or hea phones. Combining
these options may stress the power amplifier
section an , in extreme cases, may lea to
valve an /or output transformer failure.
11.. EExxtteennssiioonn SSppeeaakkeerr 88Ω
This is the output that connects to an 8Ω
extension cabinet.
22.. EExxtteennssiioonn SSppeeaakkeerr 1166Ω
This is the output that connects to a 16Ω
extension cabinet.
33.. HHeeaapphhoonneess//EExxtteennssiioonn SSppeeaakkeerr
SSeelleeccttoorr SSwwiittcchh
This switch routes the 16Ωoutput signal to its
e icate speaker output (2) or the
hea phone output (4). When this switch is set
to ‘Hea phones’ this is the only time it is
acceptable not to have an extension speaker
cabinet connecte .
44.. HHeeaapphhoonneess OOuuttppuutt
This is the output that connects to a stan ar
set of hea phones.
TTEECCHH NNOOTTEE::The signal here is erive from
the speaker output with a e filtering in
or er to inclu e the power amp an output
transformer’s contribution to the overall tone.
An internal 16Ωummy loa helps maintain
the correct ‘reflecte ’ impe ance for the power
amplifier.
55.. MMaaiinnss IInnppuutt
Your amplifier is provi e with a etachable
mains (power) lea , which is connecte here.
The specific mains input voltage rating that
your amplifier has been built for is in icate
on the back panel. Before connecting for the
first time, please ensure that your amplifier is
compatible with your electricity supply. If you
have any oubt, please ask the a vice of a
qualifie technician. Your Marshall ealer will
help you in this respect.
The correct value of mains fuse locate in the
small rawer at the bottom of the mains socket
is specifie on the rear panel of the amplifier.
The rawer contains a space for a spare fuse.
NEVER attempt to bypass the fuse or fit one of
the incorrect value!
NNOOTTEE: It is wise to carry spare fuses at all
times.
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ENGLISH
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Whilst the inf rmati n c ntained herein is c rrect at the time f publicati n, due t ur p licy f c nstant impr vement and devel pment,
Marshall Amplificati n plc reserve the right t alter specificati ns with ut pri r n tice.
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