Manual Marshall Astoria Dual (page 2 of 31) (English, German, French, Spanish)

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Thank you for choosing Marshall and congratulations on the purchase of your British

made, all-valve, 30 Watt Astoria Dual AST3C combo or AST3H head. Our goal with

the Astoria Dual was simple: create a dual channel amplier that marries traditional

hand wired craftsmanship with contemporary switching. We sincerely hope that

your Astoria Dual will provide you with countless hours of tone.

- The Marshall Team

Your Astoria Dual has been expertly

crafted and is designed, engineered

and constructed to the highest possible

standards at the Marshall factory in

Bletchley, England. Its all-valve heart

comprises of: 4 x ECC83 (12AX7) in

the preamp, a GZ34 rectier, and 2

x KT66 in the output stage, which

is cathode-biased with no negative

feedback. This is a characteristic of many

classic, vintage ampliers and produces

musical, harmonically rich distortion,

with ‘chiming’ higher frequencies and

warmer lows when the power amplier

is overdriven.

The Astoria Dual combines a 100% hand

wired signal path with front panel pull

switches for Channel, Body and Power

Reduction. To achieve this innovative

marriage of authentic tonal character

and contemporary switching capability

the Astoria Dual uses turrets mounted

on the PCB – allowing the hand wiring

and the more complex switching

circuitry to elegantly co-exist on a single

board.

For performance exibility the Astoria

Dual’s Channels and its valve driven

series FX Loop are selectable using the

supplied 2-way footswitch.

Accompanying the traditional Bass,

Middle and Treble tone stack is the

Edge control, which adds brightness or

darkness to the amplier’s sound overall,

and the Body control, which thickens the

sound. The FX Loop features a rear panel

loop Level control for matching the

level of rack or pedal FX units with the

amplier. For added convenience a front

panel LED illuminates to show when the

FX Loop is active.

To further enhance your tonal palette,

the Power Reduction feature drops

power from 30 Watts to 5 Watts,

producing warmer, softer tones.

The Astoria Dual combo features a 12”

custom-voiced Celestion Creamback

speaker, as does the optional AST3-112

speaker cabinet, which is designed to

match either the AST3H head, or the

AST3C combo as an extension speaker

cabinet.

INTRODUCTION

OVERVIEW

FOLLOW ALL INSTRUCTIONS AND HEED ALL WARNINGS

KEEP THESE INSTRUCTIONS

WARNING:

Before going any further, make sure that

your amplier 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 in this respect.

MAINS INPUT & FUSE:

The specic mains input voltage

rating that your amplier has been

manufactured for is indicated on the

rear panel of the amplier.

Your amplier is provided with a

detachable mains (power) lead, which

should be connected to the MAINS

INPUT socket on the rear panel of the

amplier.

The correct value and type of mains

fuse is specied on the rear panel of the

amplier.

NEVER attempt to bypass the fuse or t

one of the incorrect value or type.

TRANSPORTING YOUR EQUIPMENT:

Please ensure that your amplier is

switched off, unplugged from the mains

electricity supply and all removable

cables have been disconnected from

your equipment before attempting to

move it.

IMPORTANT SET UP INFORMATION:

1. Make sure that the speaker or

speaker cabinet(s) is connected to

the correct impedance loudspeaker

jack socket(s) on the rear panel of

the amplier. See the

LOUDSPEAKERS guide in this

manual (Rear Panel Function #4)

for specic information regarding

impedance matching. When using a

speaker cabinet(s) make sure that

you use a proper speaker cable.

Never use a screened (shielded)

guitar cable for this purpose.

NOTE: Before connecting or

disconnecting the speaker or

speaker cabinet(s) you MUST switch

the amplier off and disconnect

it from the mains electricity supply.

Switching on without a speaker

or speaker cabinet(s) plugged in will

damage the amplier.

2. Ensure that the volume controls on

the front panel are set to zero.

3. Connect the supplied mains (power)

lead into the MAINS INPUT on the

rear panel rst and then into the

mains electricity supply. (Rear Panel

Function #1)

4. Plug your guitar into either the HI or

LO input jack socket on the front

panel. (Front Panel Function #1)

5. Turn the front panel power switch

ON (Front Panel Function #14) and

wait for a few minutes before going

to point six below.

6. After waiting, engage the STANDBY

switch (Front Panel Function #13).

7. Turn the volumes up to your

preferred level and your amp is ready

to play.

WARNING! IMPORTANT SAFETY INSTRUCTIONS

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Marshall Astoria Dual Manual

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