1959SLP Rear Panel
1959SLP & 1987X
WARNING!:RISK RISK OF OF HAZARDOUS HAZARDOUS ENERGYENERGYSELECTORSELECTORMAINS INPUTMAINS FUSEH.T. FUSE
!AVIS!:ENERGIE ENERGIE ELECTRIQUE ELECTRIQUE DANGEREUSE!DANGEREUSE!
+4dBVBYPASSEFFECTSLOOPT3.15A 230VT6.3A 110VT1A
1012-10dBVACTIVESPEAKERS
1959SLP & 1987X Front Panel
LEVEL BYPASS
MAINSSTANDBYPRESENCEBASSMIDDLETREBLEHIGH TREBLENORMALRETURNSENDCONNECT SPEAKERS BEFORE USE
OUTPUT: 100 WATTS RMS110V 110V ~ ~ 60Hz60Hz
46464646464612AND.OUTPUTMAINS375 375 Wattsatts
MK282828282828INPUTS
II
01001001001001001012
ONONLOUDNESS 1LOUDNESS 21 234567891011
1987X Rear Panel
MODEL: 1987XWARNING!:RISK RISK OF OF HAZARDOUS HAZARDOUS ENERGYENERGYSELECTORSELECTORMAINS INPUTMAINS FUSEH.T. FUSEENGLISH
AVIS!:ENERGIE ENERGIE ELECTRIQUE ELECTRIQUE DANGEREUSE!DANGEREUSE!
1234567891113+4dBVBYPASSEFFECTS!T2A 230VLOOPT4A 110VT500mA
-10dBVACTIVESPEAKERS
1. Power Switch7. Treble ControlLEVEL BYPASS
RETURNSENDCONNECT SPEAKERS BEFORE USE
On / Off Switch for mains power to the amplifier.Controls the high frequencies of the guitar tone,OUTPUT: 50 WATTS RMS110V 110V ~ ~ 60Hz60Hz
OUTPUTMAINS175 175 WattsattsMADE IN ENGLAND BY MARSHALL AMPLIFICATION PLC,BLETCHLEY, MILTON KEYNES, ENGLAND.
making your guitar sound brighter when increased.
ENGLISHPlease ensure the amplifier is switched off and
unplugged from the mains electricity supply before(Note: The tone network is highly interactive and
1 234567891011
being moved.altering one control can change the shape of the
sound in relation to the other tone controls.
1. LevelIf running into two 16 Ohm cabs, the amp should be
Experimentation is the best way to achieve your2. Standby Switch
Provides two different loop levels to suit the type ofset to 8 Ohms. If running into two 8 Ohm cabs, the
desired sounds.)The Standby Switch is used in conjunction with the
effects connected to the series effects loop. Theamp should be set to 4 Ohms.
Power Switch (item 1) to �warm upO the amplifier
8. High Treble Loudness 1higher level (+4dBV) suits rack processors and thebefore use and to prolong the life of the output valves.Failure to comply with these points will result in
lower level (-10dBV) suits floor pedals.
Controls the overall output level of Channel 1.damage to the amplifier.
When powering up the amplifier always engage the
Note: This channel is voiced for a higher treble
Power Switch (item 1) first. This allows the2. BypassYour amp should be completely powered down
response than Channel 2.
application of the voltage required to heat the valvesThis switch completely bypasses the circuitrybefore the selector is turned.
to their correct operating temperature. After about 2involved in the effects loop to maintain absolute tonal
9. Normal Loudness 2
minutes, when the valves are up to the correctintegrity.8. Mains Selector
Controls the overall output level of Channel 2.
temperature, the Standby Switch can be engaged.Matches the amplifier mains transformer voltage to
Note: Channel 2 is voiced for normal response.
Upon doing this the H.T. (High Tension) which is the3/4. Effects Loopthe incoming mains voltage. Ensure that the rotary
high voltage required by the output valves to passTo increase the flexibility of your amplifier furtherMains Selector is set to the correct mains voltage10. Input Jack
signal (and hence produce sound) is applied.you may choose to add external effects. The Effectsapplicable to the country where used. If you do not
Connects the guitar to Channel 1.
Loop allows direct connection of either floor pedals orknow the mains input voltage contact your authorised
Note: Though the first input of the first channel israck processors, with the level control (item 1)To prolong valve life, the Standby Switch aloneMarshall dealer.
should be used to turn the amplifier on and off duringthe input that most guitarists use, donOt be afraid to
providing the correct operating level.
breaks in a performance. Also, upon full power down,Your amp should be completely powered downexperiment. Some guitar players prefer to mix the two
always disengage the Standby Switch prior to theUsually effects involving distortion or Wah Wahbefore the selector is turned. Adjustment fromchannels together by connecting a short, screened
main Power Switch (item 1).would not go through the loop, but between the guitar230/220V to 110V or vice versa will require the mains
patch lead between the second input of Channel 1 and
and amp input. Time or modulation based effectsfuse to be changed to the corresponding value as
the first input of Channel 2. If you then plug your
3. Indicatorsuch as Chorus, Delay and Reverb are best suited todetailed on the rear panel.
guitar into the first input of
The Indicator will be lit when your amplifier is onthe loop.
Channel 1 (item 10), you can mix12
and will not be lit when the amplifier is switched off. 9. Mains Input
the different tonal characters ofThe signal is sent out from the amplifier to the input
INPUTSYour amp is provided with a detachable mains
each channel for greaterof your effects processor/pedal from socket 4 (Effects
4. Presence Control12(power) lead which is connected here. The specific
flexibility. (See diagram).Send) then from the output of the processor/pedal is
Adds higher frequencies to the guitar tone, creatingmains input voltage rating that your amplifier has
returned into the amp via socket 3 (Effects Return).crispness and bite. Turning this up will make thebeen built for is shown on the back panel. Before
11. Input Jack
sound more cutting and �presentO.connecting for the first time, please ensure that your
Connects the guitar to the lower sensitivity input on5/6. Loudspeaker Outputs
amplifier is compatible with your electricity supply. If
Channel 1.
5. Bass ControlThese are for connection to an external load, i.e.you have any doubt, please get advice from a
speaker cabinet(s). (See item 7).
Controls the amount of low frequencies or bottom12. Input Jackqualified person. Your Marshall dealer will help in this
end in your tone.Please refer to Important Safety Instructions, page 2.respect.
Connects the guitar to Channel 2.
6. Middle Control7. Output Selector10. Mains Fuse
13. Input Jack
Dictates the middle register of the amplifier.Matches the amplifierOs output to the loadThe correct value of mains fuse is specified on the
Connects the guitar to the lower sensitivity input on
Turning this up will make your guitar sound fatter.impedance.rear panel of the amplifier. Please refer to Important
Channel 2.
Conversely reducing the amount of middle in yourSafety Instructions, page 2.
With all-valve amplifiers it is imperative that the amp
tone will result in a sharper and thinner guitar sound
is connected to a load whilst in operation and that the11. H.T. Fuse
for a more �scoopedO tone.
impedance selected on the amplifier matches the totalThe correct value of H.T. fuse is specified on the
impedance of the speaker cabinet(s) being used. For
rear panel of the amplifier. Please refer to Important
example, if the amp is running into a single 16 Ohm
Safety Instructions, page 2.
cab, the amp should accordingly be set to 16 Ohms.
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