Front Panel Functions; Rear Panel Functions - Marshall Amplification STUDIO CLASSIC SC20H Quick Start Manual

FRONT PANEL FUNCTIONS

SC20H
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SC20C
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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

REAR PANEL FUNCTIONS

SC20H
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SC20C
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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.
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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.
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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.
Any other speaker combinations
may stress the power amp and
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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.
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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
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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.
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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
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