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On all the following suggested settings you will immediately notice how rich and authentic the
sounds are. As you will hear, even on clean settings AVT adds those subtle harmonics and that
desirable compression which only a classic all-valve amp can normally deliver.
Funky Clean
A really bright clean which still maintains Mid definition. This is best used in conjunction with a
single-coil neck pick-up or the neck / bridge combination on a humbucker-equipped guitar. Keeping
the Gain control low ensures a clean preamp signal and also helps feed extra treble through to the
power amplifier for additional brightness and cut.
Blues Clean
Here the preamp Gain is increased and what you start to hear is pure, harmonically rich break-
up and compression from the internal Marshall ECC83. Again the neck pick up on a single coil
guitar or the neck / bridge combination on a humbucker-loaded guitar will deliver the warmest tones.
Brit Crunch
Here the advantage of the separate Gain and Volume controls really come into play. Notice
how the Gain is quite low but the Volume is quite high. This is the way the old Marshall crunch
sounds of the late 60’s and 70’s were created - namely by keeping the preamp pretty clean and
creating the desired distortion by driving the power stage hard. With such a setting, when you back
off the guitar’s Volume or pick less heavily, you will feel and hear how the rich, clear tone of the
clean sound remains.
MV Crunch
This crunch is reminiscent of the first Marshall Master Volume amplifiers of the much heralded
JCM800 series. The Valve Drive Preamp is driven into mild saturation, creating a big, open
overdrive using the bridge position pick-up, whether single-coil or humbucker.
Screaming Lead
Here the Gain is cranked to the max and the Mids are brought up to fatten the tone of the single
notes. With these settings the rich, natural harmonic overtones that the valve introduces will be very
apparent. Best with the bridge pickup.
Heavy, Modern Crunch
Cutting the Mids while heavily boosting the Gain, Treble and Bass gives an aggressive, modern
‘tear-yer-face-off’, scooped sound. The bridge humbucker is the one to use here if you truly wanna
ride the lightning...definitely not for the faint-hearted!
Suggested Settings
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AVT50 1x12" Combo & AVT50H Head Rear Panel Features
1
Mains Input Connector
Your AVT50 is provided with a detachable
mains (power) lead which is connected here.
The specific mains input voltage rating that
your amplifier has been built for is shown on
the back panel. Before connecting for the first
time, please ensure that your electricity supply
is compatible with your amplifier. If you have
any doubt, please get advice from a qualified
person. Your Marshall dealer will help in this
respect.
2
Loudspeaker Jack Socket
i. Combo Version (AVT50)
This socket allows you to connect your
AVT50 into an external loudspeaker system,
provided it has an impedance of 8 or 16 ohms.
By using any one of our comprehensive range
of extension cabinets, you will be able to
unleash the massive amount of tonal options
that extra loudspeakers will provide.
ii. Head Version (AVT50H)
This is where you connect your AVT50
Head to external loudspeaker cabinets in order
to deliver the extraordinary power that only a
Marshall head can provide.
The AVT50H is specifically voiced to run
into the AVT412A / AVT412B 4x12” compact
cabinet combination. Having said this the
AVT50H is equally at home driving any one of
our other loudspeaker options, such as the
legendary 1960A/B 4x12” full size cabinets for
example.
WARNING:
Always provide the AVT50H with a load
equal to, or greater than, 4 Ohms. Using the
two loudspeaker outputs, with cabinets rated at
8 Ohms each, the full 50W of the specially
designed AVT power amplifier will be
unleashed.
3
Emulated DI Out Jack Socket
This jack socket carries a specially treated
output signal from your AVT50 which
accurately emulates the sonic signature of a
guitar loudspeaker. This output can be used in
both live performance and recording situations
to achieve authentic guitar amp tones without
having to use a microphone. Furthermore, if
you wish to mute the loudspeaker, for ‘silent’
recording, then merely insert an unused jack
plug (a short patch cable will do fine) or a set of
headphones into the Headphone socket.
4
FX Return Jack Socket
Use a high quality shielded lead to
connect the output of your effects unit to the
effects return jack of the AVT50H.
5
FX Send Jack Socket.
The AVT50 is fully equipped with a Series
effects loop in order to allow you to connect
external effects units to the amplifier. As
always, we recommend you use high quality
leads to ensure you lose none of the tone of
the AVT50’s direct signal. Connect this output
to the input of your effects unit. Adjust the
input gain of your effects unit so as not to
overdrive its circuitry. Set the effects unit
output level to achieve the same ‘effected
volume’ as in bypass.
6
Footswitch Input Jack Socket
Supplied with your new AVT50 is a
Marshall Channel select footswitch (PEDL-
00001). This plugs into the Footswitch Input
Jack Socket.
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