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AMC

CVT2030

VALVE

POWER

AMPLIFIER

INSTRUCTIONS

FOR

INSTALLATION

AND

OPERATION

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK,

DO

NOT

REMOVE

COVER

(OR

BACK).

NO

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

TO

QUALIFIED

SERVICE

PERSONNEL.

AFIN

DEVITER

UN

CHOC

ELECTRIQUE

ET

LES

CONSEQUENCES

GRAVES

QUI

POURRAIENT

EN

RESULTER,

TENTEZ

PAS

D’OUVRIR

L'APPAREIL

ET

DE

TOUCHER

AUX

COMPOS

ANTS

INTERNES

SANS

LA

PRESENCE

D’UNE

PERSONNE

QUALIFIEE.

PARA

REDUCIR

EL

RIESGO

DE

SACUDIDAS

ELECTRICAS,

NO

DEBERA

QUITARSE

LA

TAPA

(Nl

PARTE

POSTERIOR).

CONSULTESE

AL

PERSONAL

CAPACITADO

PARA

LAS

REPARACIONES

INTERNAS.

WARNING:

TO

PREVENT

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

ADVERTENICIA:

PARA

EVITAR

EL

RIESGO

DE

INCENDIO

O

SACUDIDA

ELECTRICA,

NO

DEBERA

EXPONERSE

ESTE

APARATO

A

LA

LLUVIA

O

HUMEDAD.

CAUTION:

TO

PREVENT

ELECTRIC

SHOCK

DO

NOT

USETHIS

(POLARISED)

PLUG

WITH

AN

EXTENSION

CORD,

RECEPTACLE

OR

OTHER

OUTLET

UNLESS

THE

BLADES

CAN

BE

FULLY

INSERTED

TO

PREVENT

BLADE

EXPOSURE.

ATTENTION:

POUR

PREVENIR

LES

CHOCS

ELECTRIQUES

NE

PAS

UTILISER

CETTE

FICHE

POLARISEE

AVEC

UN

PROLONGATEUR.

UNE

PRISE

DE

COURANT

OU

UNE

AUTRE

SORTIE

DE

COURANT,

SAUF

SILES

LAMES

PEUVENT

ETRE

INSEREES

A

FOND

SANS

EN

LAISSER

AUCuNE

PARTIE

FOND

SANS

EN

LAISSER

AUCUNE

PARTIE

A

DECOUVERT.

PRECAUCION:

PARA

EVITAR

SACUDIDAS

ELECTRICAS,

NO

DEBERA

UTILIZARSE

ESTA

CLAVIJA

POLARIZADA

CON

UN

CORDON

DE

PROLONGACION,

RECEPTACULO

U

OTRO

TIPO

DE

SALIDA

A

MENOS

QUE

SE

HAYAN

INSERTASO

COMPLETAMENTE

LAS

LENGUETAS

PARA

EVITAR

SU

EXPOSICION.

NOTE:

Some

AMC

products

are

equipped

with

dual

or

multi-voltage

transformers

(which

is

indicated

on

the

back

panel).

If

you

wish

to

change

the

voltage,

please

bring

your

unit

to

an

authorised

AMC

service

technician

for

internal

conversion.

ATTENTION:

Quelques

pieces

AMC

sont

munies

de

transformateurs

k

double

ou

a

multi-voltage

(indique

au

panneau

arriere).

Si

vous

voulez

changer

le

voltage,

veuillez

apporter

votre

appareil

au

fournisseur

de

AMC

pour

le

transformer.

ZUR

BEACHTUNG:

Einige

AMC

Gerate

sind

mit

Umschaltern

fur

unterschiedliche

Netzspannungern

ausgerustet

(Ein

Vermerk

auf

der

Ruckseite

weist

darauf

hin).

Die

Anpassung,

wenn

notwendig,

mu(3

von

einem

qualifizieren

Techniker

in

einer

AMC

Servicestation

vorgenommen

werden.

NOTA:

Ciertos

componentes

de

AMC

estan

dotados

de

transformadores

de

doble

tension

o

de

varias

tensiones

(lo

que

se

indica

en

el

panel

posterior).

Si

se

desea

cambiar

la

tension,

sirvanse

llevar

el

aparato

a

un

tecnico

autorizado

por

AMC

para

su

conversion

interna.

NOTE

to

CATV

systems

installer:

This

reminder

is

provided

to

call

the

CATV

system

installer’s

attention

to

Article

820-22

of

the

NEC

that

provides

guidelines

for

proper

grounding

and,

in

particular,

specifies

that

the

cable

ground

shall

be

connected

to

the

grounding

system

of

the

building,

as

close

to

the

point

of

cable

entry

as

practical.

NOTA

PARA

EL

INSTALADOR

DE

ANTENAS

DE

TELEVISION

COLECTIVAS:

La

presente

advertencia

se

provee

para

llamar

la

atencion

del

instalador

al

Artfculo

820-22

de

NEC

(Cordigo

Electrico

Nacional)

donde

se

facilitan

las

directrices

para

la

pertinente

puesta

a

tierra

y

que

especifica

en

particular

que

el

condutor

a

tierra

del

cable

debe

conectarse

al

sistema

de

conexion

a

tierra

del

edificio,

lo

mas

proximo

posible

al

punto

de

entrada

del

cable.

The

lightning

flash

with

arrowhead,

within

an

equilateral

The

exclamation

point

within

an

equilateral

triangle

is

M

triangle,

is

intended

to

alert

the

user

of

the

presence

of

^k

intended

to

alert

the

user

of

the

presence

of

uninsulated

"dangerous

voltage"

within

the

product’s

^^k

important

operating

and

maintenance

(servicing)

enclosure;

that

may

be

of

sufficient

magnitude

to

instructions

in

the

literature

accompanying

the

constitute

a

risk

of

electric

shock

to

persons.

appliance.

INTRODUCTION

The

AMC

CVT2030

has

been

designed

to

give

superb

sound

quality

and

represents

outstand¬

ing

value

for

money.

The

CVT2030

is

a

hybrid

mosfet

valve

design,

capable

of

giving

superb

sound

reproduction.

The

components

are

all

of

the

highest

quality,

but

there

are

a

few

simple

hints

to

follow

in

order

to

get

the

best

from

your

new

amplifier.

1)

Do

not

stand

any

object

or

other

component

on

the

top.

Whilst

the

2030

is

one

of

the

coolest

running

Class

A

valve

amps

available,

uninterr¬

upted

air

flow

is

most

important.

2)

There

are

two

silent

fans

in

the

base

under

each

pair

of

EL34

valves.

Again,

the

air

space

under

the

amp

must

not

be

restricted

in

any

way.

Never

stand

the

unit

on

a

carpeted

surface

or

anything

soft,

or

on

another

component

which

generates

heat.

3)

The

amplifier

will

sound

best

when

it

is

"warmed

up",

this

can

take

15-20

minutes.

4)

The

valves

should

last

a

very

long

time

but

can

be

changed

easily.

However,

as

there

is

always

some

voltage

present

inside,

even

when

the

unit

is

turned

off,

we

recommend

that

this

is

carried

out

by

your

AMC

dealer,

it

is

only

a

five

minute

job

for

an

engineer.

5)

We

recommend

you

retain

the

original

carton

and

packaging

so

that

it

can

be

repacked

corr¬

ectly

if

it

ever

becomes

necessary

to

transport

the

unit

or

return

for

service.

6)

After

switching

off,

always

let

the

amplifier

cool

down

before

turning

on

again.

INSTALLATION

Your

AMC

amplifier

is

supplied

set

to

work

on

your

local

mains

supply

voltage.

Check

that

your

local

mains

supply

voltage

agrees

with

the

voltage

setting

indicated

on

the

back

panel

of

the

amplifier.

If

not,

please

contact

your

dealer

or

national

distributor

for

details

on

how

to

proceed

further.

The

cores

of

the

mains

lead

are

coloured

in

accordance

with

the

following

code:

Blue

-Neutral

Brown

-Live

Note:

Export

units

for

certain

markets

have

moulded

mains

plugs

fitted

as

standard.

As

the

colours

in

the

mains

lead

may

not

corr¬

espond

with

the

coloured

markings

identifying

the

terminals

in

your

plug,

proceed

as

follows:

The

wire

which

is

coloured

blue

must

be

connected

to

the

terminal

which

is

marked

by

the

letter

N,

or

coloured

black

or

blue.

The

wire

which

is

coloured

brown

must

be

connected

to

the

terminal

which

is

marked

by

the

letter

L,

or

coloured

red

or

brown.

FUSES

If

the

mains

plug

is

fused,

fit

a

3amp

fuse.

Your

AMC

amplifier

contains

fuses

which

are

designed

to

protect

the

amplifier

and

prevent

the

occurrence

of

a

dangerous

fault

condition.

These

should

only

be

inspected

and

replaced

by

a

competent

engineer

using

the

correct

replacement

types.

2

REAR

PANEL

CONNECTIONS/FRONT

PANEL

CONTROLS

REAR

PANEL

1.

INPUT

3.

AC

CONVENIENCE

OUTLETS

2.

LOUDSPEAKER

TERMINAL

4.

AC

LINE

CORD

FRONT

PANEL

1

1.

POWER

SWITCH

3

REAR

PANEL

CONNECTIONS

A/C

OUTLET

The

A/C

convenience

outlets

are

fitted

so

that

other

components

can

be

powered

when

your

amplifier

is

switched

on.

UNDER

NO

CIRCUMSTANCES

SHOULD

THE

CASE

OF

THE

AMPLIFIER

BE

OPENED

BY

ANYONE

OTHER

THAN

A

QUALIFIED

ENGINEER,

AS

DANGEROUS

VOLTAGES

ARE

PRESENT

INSIDE.

ANY

UNAUTHORISED

REPAIR

MAY

INVALIDATE

YOUR

WARRANTY.

INPUTS

The

inputs

are

via

gold

plated

RCA

type

phono

connectors.

The

phono

sockets

on

your

AMC

amplifier

are

marked

"L"

for

left

and

"R"

for

right

channels,

with

the

left

channel

nearest

the

top

of

the

cabinet.

Your

connection

leads

will

have

a

white

or

black

plug

for

left,

and

a

red

plug

for

right.

LOUDSPEAKER

CONNECTIONS

The

loudspeaker

output

terminals

will

accept

4mm

(banana)

plugs,

pin

connectors,

spade

connectors

or

bare

wires.

The

amplifier

has

speaker

outputs

that

will

match

4-8

Ohm

speakers.

Confirm

the

imped¬

ance

of

your

speakers

then

connect

as

follows:

For

8

Ohm

Speakers,

connect

the

negative

(black)

speaker

wire

to

the

"common"

negative

binding

post.

Then

connect

the

positive

(red)

cable

to

the

8

Ohm

red

binding

post.

Repeat

for

the

right

speaker.

For

4

Ohm

speakers,

the

negative

(black)

connections

are

the

same

as

the

8

Ohm,

but

the

positive

or

red

connection

must

be

to

the

4

Ohm

binding

post.

Your

AMC

amplifier

is

capable

of

generating

high

peak

currents,

so

all

connections

must

be

checked

to

avoid

inadvertent

short

circuits,

and

to

ensure

a

good

clean

contact.

UNDER

NO

CIRCUMSTANCES

SHOULD

THE

OUTPUTS

BE

SHORTED

TOGETHER.

FRONT

PANEL

CONTROLS

POWER

SWITCH

The

amplifier

is

turned

on

by

depressing

the

power

switch.

The

small

indicator

above

the

switch

will

glow

green.

Before

switching

on,

always

set

the

volume

control

of

your

Pre

Amp

to

minimum

to

avoid

damage

to

your

loudspeakers.

Note:

Your

AMC

amplifier

will

play

music

within

a

few

minutes

after

being

switched

on.

However

in

common

with

other

audiophile

products,

the

internal

circuits

take

some

time

to

stabilise

fully,

and

the

best

possible

sound

quality

may

not

be

obtained

until

the

amplifier

has

had

some

time

(possibly

an

hour

or

two)

to

warm

up.

CHECK

LIST

Should

you

have

any

difficulty

in

operating

your

amplifier,

switch

off

and

check

the

following

before

suspecting

that

a

fault

has

developed:

No

power

and

LED

not

illuminated

1.

Check

that

all

mains

supplies,

connections

and

fuses

are

good

and

that

the

power

is

switched

on.

Power

on

and

LED

illuminated

but

no

output

1.

Check

that

the

amplifier

is

connected

to

the

desired

input.

2.

Check

that

the

loudspeakers

are

connected

correctly

to

the

power

amplifier.

Power

on

and

LED

illuminated

but

output

from

one

speaker

only

1.

Check

that

the

input

wiring

is

not

faulty.

If

in

doubt,

contact

your

dealer.

Loud

hum

heard

through

loudspeakers

when

disc

is

selected

1.

Check

that

the

amplifier

is

correctly

earthed

via

the

mains

lead.

2.

Check

that

other

transformers

in

the

vicinity

are

not

radiating

into

your

amplifier.

4

SPECIFICATIONS

Power

output

into

8/4

ohms.30W

With

both

channels

driven

Rated

T.H.D.

45Hz-20KHz.

1

.

0

%

1

KHz

clipping

power

into

8/4

ohms.

3

6

W

Input

sensitivity

for

1W/30W

into

8

ohms.230mV/1250mV

Input

impedance.

500K

ohms/470pF

Frequency

response:

20Hz-20KHz.+/-0.5dB

-3dB.10Hz/80KHz

Signal

to

noise

ratio

(ref.

1W/8

ohms):

"A-WTD.95dB

UN-WTD.

8

5dB

Separation

20Hz-20KHz.

>65dB

Overall

feedback.14dB

Dimensions

(WxHxD).

430x112x288mm

Net

weight.

13

«

g

Shipping

weight...i4«g

5

SAFETY

INSTRUCTION

1.

READ

INSTRUCTIONS

All

the

safety

and

operating

instructions

should

be

read

before

the

appliance

is

operated.

2.

RETAIN

INSTRUCTIONS

The

safety

and

operating

instructions

should

be

retained

for

future

reference.

3.

HEED

WARNINGS

All

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to.

4.

FOLLOW

INSTRUCTIONS

All

operating

and

use

instructions

should

be

followed.

5.

WATER

AND

MOISTURE

The

appliance

should

not

be

used

near

water-

for

example,

near

a

bathtub,

washbowl,

kitchen

sink,

laundry

tub,

in

a

wet

basement,

or

near

a

swimming

pool,

etc.

6.

CARTS

AND

STANDS

The

appliance

should

be

used

only

with

a

cart

or

stand

that

is

recommended

by

the

manufacturer.

6A.

An

appliance

and

cart

combination

should

be

moved

with

care.

Quick

stops,

excessive

force,

and

uneven

surfaces

may

cause

the

appliance

and

cart

combination

to

overturn.

7.

WALL

OR

CEILING

MOUNTING

This

equipment

is

not

designed

for

use

mounted

on

a

wall

or

a

ceiling.

8.

VENTILATION

The

appliance

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

For

example,

the

appliance

should

not

be

situated

on

a

bed,

sofa,

rug,

or

similar

surface

that

may

block

the

ventilation

openings;

or

placed

in

a

built-in

installation,

such

as

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings.

9.

HEAT

The

appliance

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

appliances

(including

amplifiers)

that

produce

heat.

10.

POWER

SOURCES

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

11.

POWER-CORD

PROTECTION

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

attention

to

cords

at

plugs,

comvenience

receptacles,

and

the

point

where

they

exit

from

the

appliance.

12.

CLEANING

The

appliance

should

be

cleaned

only

as

recommended

by

the

manufacturer.

13.

NON

USE

PERIODS

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

14.

OBJECT

AND

LIQUID

ENTRY

Care

should

be

taken

so

that

objects

do

not

fall

and

liquids

are

not

spilled

into

the

enclosure

through

openings.

15.

SERVICING

The

user

should

not

attempt

to

service

the

appliance

beyond

that

described

in

the

operating

instructions.

All

other

servicing

should

be

referred

to

qualified

service

personnel.

16.

DAMAGE

REQUIRING

SERVICE

The

appliance

should

be

serviced

by

qualified

service

personnel

when:

a)

The

power-supply

cord

or

the

plug

has

been

damaged;

or

b)

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

appliance;

or

c)

The

appliance

has

been

exposed

to

rain;

or

d)

The

appliance

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

e)

The

appliance

has

been

dropped,

or

the

enclosure

damaged.

17.

POWER

LINES

(APPLIES

TO

TUNER

AND

RECEIVERS

ONLY)

An

outdoor

antenna

should

be

located

away

from

power

lines.

18.

OUTDOOR

ANTENNA

GROUNDING

(APPLIES

TO

TUNER

AND

RECEIVERS

ONLY)

If

an

outside

antenna

is

connected

to

the

receiver,

be

sure

the

antenna

system

is

grounded

so

as

to

provide

some

protection

against

voltage

surges

and

built

up

static

charges.

Section

810

of

the

National

Electrical

Code,

ANSI/NFPANo.

70-1984,

provides

information

with

respect

to

proper

grounding

of

the

mast

and

supporting

structure,

grounding

of

the

lead-in

wire

to

an

antenna

discharge

unit,

size

of

grounding

conductors,

location

of

antenna-discharge

unit,

connection

to

grounding

electrodes,

and

requirements

for

the

grounding

electrode.

See

Figure.

a)

Use

No.

10

AWG

(5.3

mm

2

)

copper,

No.

8

AWG

(8.4mm

2

)

aluminum,

No.

17

AWG

(1.0mm

2

)

copper-clad

steel

or

bronze

wire,

or

larger,

as

a

ground

wire.

b)

Secure

antenna

lead-in

and

ground

wires

to

house

with

stand-off

insulators

spaced

from

4-6

feet

(1.22-1.83

m)

apart.

c)

Mount

antenna

discharge

unit

as

close

as

possible

to

where

lead-in

enters

house.

d)

Use

jumper

wire

not

smaller

than

No.

6

AWG

(13.3

mm

2

)

copper,

or

the

equivalent,

when

a

separate

antenna-grounding

electrode

is

used.

See

NEC

Section

810-21

(j).

Antenna

Grounding

According

to

the

National

Electrical

Code

'"'National

Electrical

Code

Available

from

Library,

book

stores,

or

National

Fire

Protection

Association

(Batterymarch

Park,

Quincy

MA

02269).