Manual Marshall AVT20X, 50X, 50HX (page 5 of 7) (English)

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ENGLISH

AVT50X Combo & AVT50HX Head Rear Panel Features

1. Mains Input Connector

Your AVT50X 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 (AVT50X)

This socket allows you to connect your AVT50X

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 (AVT50HX)

This is where you connect your AVT50X Head to

external loudspeaker cabinets in order to deliver

the extraordinary power that only a Marshall

head can provide.

The AVT50HX is specifically voiced to run into

the AVT412XA / AVT412XB 4x12" compact

cabinet combination. Having said this the

AVT50HX 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 AVT50HX 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 AVT50X 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 AVT50HX.

5. FX Send Jack Socket

The AVT50X 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

AVT50X’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 AVT50X is a Marshall

Channel select footswitch (PEDL-10001). This

plugs into the Footswitch Input Jack Socket.

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

EUROPE ONLY - Note: This equipment has been tested and found to comply with the

requirements of the EMC Directive (Environments E1, E2 and E3 EN 55103-1/2) and the Low Voltage

Directive in the E.U.

EUROPE ONLY - Note: The Peak Inrush current for the

AVT20X is 3 amps.

The Peak Inrush current for the AVT50X is 10 amps.

Follow all instructions and heed all warnings

KEEP THESE INSTRUCTIONS !

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Marshall AVT20X, 50X, 50HX Manual

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