Marshall Amplification STUDIO CLASSIC SC20H User manual

STUDIO CLASSIC
SC20H &
SC20C
USER MANUAL

ENGLISH
CONGRATULATIONS ON
PURCHASING YOUR MARSHALL
STUDIO CLASSIC AMP.
THE STUDIO CLASSIC DELIVERS THE TONE AND FLEXIBILITY OF AN ICONIC
JCM800 2203 IN A MORE PORTABLE FORM. GIVING THOSE IN THE STUDIO
AND PLAYING INTIMATE GIGS ACCESS TO THAT FAMOUS MARSHALL SOUND.
WE HOPE YOU ENJOY YOUR NEW AMP AS MUCH AS WE HAVE ENJOYED
DESIGNING AND BUILDING IT FOR YOU.
THE MARSHALL TEAM

Warning: before going any further, make
sure that your amp is compatible with your
mains electricity supply. If you have any
doubt, please seek help from a qualied
technician – your Marshall dealer can help
you with this.
MAINS INPUT & FUSE
The specic mains input voltage rating
that your amp has been manufactured for
is indicated on the rear panel of the amp.
Your amp is provided with a detachable
mains (power) lead, which should be
connected to the mains input socket on the
rear panel of the amp. The correct value
and type of mains fuse is specied on the
rear panel of the amp.
Never attempt to bypass the fuse or t one
of the incorrect value or type.
IMPORTANT SET UP INFORMATION
1. When using your amp with one or
more speaker cabinets, make sure
that they are connected to the correct
loudspeaker jack sockets.
Warning: failure to do the above may
damage your amp. When connecting
a speaker cabinet make sure that you
use a proper speaker cable. Never use a
screened (shielded) guitar cable for this
purpose.
2. Ensure that the power switch is set to
the off position and the standby switch
is set to standby.
3. Connect the supplied mains (power)
lead into the mains input on the rear
panel rst and then into an electricity
outlet.
4. Ensure that any master, volume and/
or output level controls on the front
panel are set to zero.
5. Plug your guitar into one of the input
jack sockets on the front panel.
6. Turn the front panel power switch on
and wait a couple of minutes.
7. Select between 20W / 5W using the
standby switch.
8. Turn the volume up to your preferred
level and you’re ready to play.
TRANSPORTING YOUR EQUIPMENT
Please ensure that your amp is switched
off, unplugged from the mains electricity
supply and all removable cables have been
disconnected from your equipment before
attempting to move it.
ENGLISH
1.0
WARNING! SAFETY INSTRUCTIONS
PLEASE READ THIS MANUAL CAREFULLY BEFORE PLUGGING IN. FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS.

Inspired by arguably one of the most
successful guitar amps in Marshall’s history
the JCM800 2203. The Studio Classic
delivers the full spectrum of JCM800 2203
tone from rich and full cleans to heavier
driven aggressive sounds in a portable
format. It has a master volume, versatile
EQ settings including presence control, a
preamp volume control, an added effects
loop and DI out.
SC20H & SC20C
VALVES
2 x ECC83, 1 x ECC83 (phase splitter) and
2x EL34
CHANNELS
Single channel with 2 separate inputs
Preamp and master volume controls
POWER CONTROL
20W or 5W
EQUALISATION
Treble, middle, bass and presence
SPEAKERS
1 x 10”
Celestion V-type 10”
(combo only)
SPEAKER OUTPUTS
5 x 1/4” jack sockets
(16Ω load / 8Ω load / 4Ω load)
OUTPUTS
DI output
ENGLISH
2.0
OVERVIEW AND SPECIFICATION

SC20H
ENGLISH
1 432 5 67 8
3.0
FRONT PANEL FUNCTIONS
SC20C
810 7 65 4 3 2 1
9
10
9

3.0
FRONT PANEL FUNCTIONS CONTINUED
1. POWER SWITCH
This turns the amp on and off, it
illuminates red when unit is turned on.
2. STANDBY SWITCH
The unit power is in low power mode
(5W) when set to low, when in the middle
position it is set to standby and when set
to high power the unit runs at full power
(20W).
Standby mode: this should be used during
breaks in performances, instead of leaving
the amp on full power. Always turn the
power on for two minutes before using the
standby switch.
3. PRESENCE
Adjusts the high frequencies of the power
amp. Increasing the high frequencies adds
more bite to your sound.
4. BASS
Adjusts the low frequencies of the amp.
It will add bottom end and depth to your
sound.
5. MIDDLE
Adjusts the mid frequencies of the amp.
Giving you anything from a fat and full
sound to an aggressive tone.
6. TREBLE
Adjust the upper frequencies of the amp.
Your tone will get brighter as it is turned up.
7. MASTER VOLUME
Adjust the amps output volume.
8. PREAMP VOLUME
This will control the overdrive in the
preamp. The input gain and distortion
level of the amp are controlled with this.
9. HIGH INPUT
High sensitivity guitar input socket.
10. LOW INPUT
Low sensitivity guitar input socket
ENGLISH

ENGLISH
4.0
REAR PANEL FUNCTIONS
SC20C
SC20H
7
654321 8 9 10
765 4 3 2 1
89
10

ENGLISH
4.0
REAR PANEL FUNCTIONS CONTINUED
1. SPEAKER OUT
1/4” socket for 16 Ohm speaker
connection.
2. SPEAKER OUT
1/4” socket for 8 Ohm speaker connection
– use this in conjunction with socket 3
when plugging in 2 x 16 Ohm cabinets.
3. SPEAKER OUT
1/4” socket for 8 Ohm speaker connection
– use this in conjunction with socket 2.
when plugging in 2 x 16 Ohm cabinets.
4. SPEAKER OUT
1/4” socket for 4 Ohm speaker connection
– use this in conjunction with socket 5
when plugging in 2 x 8 Ohm cabinets.
5. SPEAKER OUT
1/4” socket for 4 Ohm speaker connection
– use this in conjunction with socket 4
when plugging in 2 x 8 Ohm cabinets.
Warning: never attempt to connect
more speakers than rated. The safe
combinations are those listed in this
manual. Any other speaker combinations
may stress the power amp and potentially
lead to valve failure.
Note: never use this amp without a
speaker load.
6. DI OUTPUT
Connect your amp to an external
recording device or sound desk using this
output socket.
Note: the DI output has added
loudspeaker emulation.
7. LOOP SWITCH
This turns the effects loop of the amp on
or off to completely remove the loop from
the signal path when switched off.
8. EFFECTS LOOP SEND
Sends signal to effects loop / outboard
equipment.
9. EFFECTS LOOP RETURN
Returns signal from effects loop or
outboard equipment.
10. POWER INLET
The supplied mains power lead is
connected here.

ENGLISH
WHILST THE INFORMATION CONTAINED HEREIN IS CORRECT AT THE TIME
OF PUBLICATION, DUE TO ITS POLICY OF CONSTANT IMPROVEMENT AND
DEVELOPMENT, MARSHALL AMPLIFICATION PLC RESERVES THE RIGHT TO
ALTER SPECIFICATIONS WITHOUT PRIOR NOTICE.
MARSHALL AMPLIFICATION PLC,
DENBIGH ROAD,
BLETCHLEY, MILTON KEYNES,
MK1 1DQ, ENGLAND.
T: [phone]
MARSHALL AMPLIFICATION PLC
REGISTERED IN ENGLAND
REGISTERED NUMBER: 805676
M3310.128 | BOOK-00151-00-V.1

STUDIO CLASSIC
SC20H &
SC20C
MANUEL D'UTILISATION