Dual CS 1264 User manual

Table of contents

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CS

1264

Owner's

manual

Single-play/multiple-play

turntable

with

Vario-belt

drive

ULM

(Ultra

Low

Mass)

tonearm

Introduction

You

now

own

one

of

the

finest

turntables

made

today,

one

which

will

make

your

records

more

enjoyable

than

ever

before.

In

addition

to

your

turntable’s

superb

performance,

you

will

opreciate

its

‘case

and

simplicity

of

operation

and

in

time,

its

long-lasting

reviability.

Before

proceeding

with

the

installation,

please

read

through

this

manual

carefully.

This

will

help

prevent

any

problems

from

incorrect

installation

or

imprecise

tonearm

se:tings

If

you

should

have

any

questions

about

your

Dual’s

operation

or

performance.

please

contact

us,

We

would

aiso

appreciate

your

comments

on

the

enclosed

warranty

card,

We

appreciate

your

selection

of

Dual

and

hope

you

will

have

countless

hours

of

musical

enjoyment,

Contents

Page

Features

of

the

Dual

CS

1264

Inside

fiap

Installation

Unpacking

and

setting

up

6

Attaching

the

dust

cover

Connections

to

power

supply

Connections

to

amplifier

Installing

cartridges

Removing

ULM

cartridge

Installing

1/2-inch

cartridges

Tuning

the

mechanical

anti-resonance

filter

Compliance

of

HiFi

magnetic

and

dynamic

cartridges

7

Balancing

the

tonearm

Applying

tracking

force

Applying

anti-skating

Operation

8

Single-play

operation

Automatic

start

Cue-contro!

start

To

interrupt

or

stop

play

Continuous

play

Multiple-piay

Pitch-contral

and

strobe

Adjustment

of

tonearm

indexing

Cue-contro!

height

adjustment

Removing

the

platter

Replacing

the

drive

belt

Stylus

care

Servicing

9

Technical

data

Ulustrations

for

instaltation

of

cartridge

WARNING:

To

prevent

fire

or

|

shock

hazard,

do

not

expose

this

|

product

6

rain

or

moisture.

CS

1264

v7

6

14

1

2

Fig

4

Tag

ii

ig

automstic

|

BELT

DAIVE!

Features

of

the

Dual

CS

1264

(1)

Tonearm

counterbalance

with

tunable

resonator

(2)

Locking

screw

for

tonearm

counterbalance

(3)

Tracking

force

setting

(4)

Alignment

screw

for

tonearm

height

(5)

Anti-skating

setting

(6)

Cue

control

(7)

Continuous

repeat

switch

(8)

Alignment

screw

for

tonearm

set-down

point

(9)

Tonearm

post

with

tonearm

rest

10)

Automatic

start-stop

switch

Fig

6

11)

Iiluminated

stroboscope

(2

13)

Cartridge

at

(14)

Single-play

spindle

ment

screw

(15)

Transport

locking

screw

(one

of

three)

(16)

Pitch

contro!

17)

Speed

selector

18)

Multiple-play

spindle

AS

12

for

large-hole

records

(special

accessory)

19)

Adapter

for

large-hole

records

(20)

Multiple-play

spindle

AW

3

Phony

Installation

Unpacking

and

setting

up

‘The

chassis

is

secured

to

the

bese

by

three

self

contained

transit

screws.

To

release

the

chass's

from

its

transit

position,

turn

each

screw

clockwise.

At

mid-position,

each

screw

will

disengage,

Continue

to

turn

clockwise

until

each

screw

is

tightened

in

te

chassis

(2)

A

B

Note:

Reverse

all

these

procedures

whenever

the

Dual

is

to

be

moved

for

any

distance,

Be

sure

to

lock

the

transit

screws

in

their

up-oositions

and

secure

the

platter

to

the

chassis

using

either

the

wedges

supplied

originally

or

strips

of

corrugated

cardboard

Attaching

the

dust

cover

The

base

is

provides

with

specia

spring

losded

hinges

which

low

the

cover

to

remain

open

at

any

angle.

To

install

the

dust

cover,

ture

the

base

around

so

the

hinges

are

readily

accessible.

Parallel

the

rear

pane!

of

the

cover

to

the

receiving

slots

on

the

hinges

(the

angle

Is

60°)

and

press

the

bottom

edge

into

the

slots.

The

cover

is

removed

in

the

same

manner.

(The

cover

is

Kept

in

any

desired

open

position

by

the

spring

Tonsion

of

the

hinges).

To

adjust

the

spring

tension,

turn

both

Screws,

In

most

cases

a

half

turn

will

be

sufficient

Connections

to

power

supply

You

car

ug

the

line

voltage

cord

of

your

Dual

either

convenience

outlet

on

the

beck

of

your

amplitier

oF

into

a

house

outlet.

The

AC

plug

's

polarized

and

requires

3

polarizee

outlet.

If

the

amplifier

AC

outer

is

switched.

the

amplifiers

on/off

switch

will

control

the

power

to

the

Oval

Connections

to

amplifier

1,

The

black

phono

cable

is

for

the

ight

channal,

the

white

cable

for

the

left

channel.

2.

Connect

the

ground

wire

of

your

Dual

to

the

grounding

Screw

on

the

rear

of

your

amplifier.

Installing

cartridges

Nowe:

if

you

purchased

your

Dus!

turatable

with

2

ULM

cerridge,

ft

has

already

been

jesialled

and

mounted

in

the

tonearm.

The

information

in

this

section

need

be

refered

to

only

if

you

should

ever

wisn

to

replace

your

ULM

certridge

with

another

ULM

carriage

or

to

installa

standard

cartridge

sth

/2inen

mounting

cone,

[You

wl

noes

a

al

sre

Removing

ULM

cartridge

1.

The

ULK!

cartridge

in

its

mounting

plete

is

secured

to

the

tonearm

head

by

an

attachment

screw

(13),

There

may

also

be

an

additional

small

screw

(Fig.

6/S)

inserted

in

the

tonearm

head

at

the

side

of

the

attachment

screwy,

If

so,

remove

this

first

‘anc

set

aside.

{Irs

function

Is

to

prevent

removal

of

the

stylus

assemb)

2.

Turn

the

attachment

screw

counterclockwise

while

holding

the

cartridge

which

will

De

joasered

and

then

detachee

from

the

tonearm

heed,

(This

screw

is

permanently

attached

to

the

tonearm

head.)

3.

To

replace

@

ULM

cartridge,

reverse

the

above

procedures,

(ULM

cartridges

are

provided

already

mounted

to

the

ULM

mounting

plate.)

Installing

1/2-inch

cartridges

1.

Detach

the

tonsarm

leads

from

the

ULM

cartridge

pin

holder.

2.

Use

the

mounting

accessories

provided

with

the

turntab

These

include:

@

mounting

place,

screws,

nuts,

spacers

and

a

poy.

3.

Attach

the

1/2.inch

cartridge

to

the

mounting

pl

fither

the

hardware

provided

with

the

turntable

o”

carrridge.

Depending

on

the

depth

of

the

cartridge

body

you

may

need

16

use

spacers

batween

the

mounting

plata

and

the

cartridge.

The

use

of

the

gouge

descrived

below

wil

indicato

this.

Do

not

tighten

the

mounting

screws

yet.

4.

Use

the

gauge

as

shown

in

figure

9

t0

check

the

ariencation

Of

the

cartriage

in

the

mounting

plate.

Viewed

from

above,

the

stylus

tip

should

be in

the

V-shaped

recess

of

the

gauge.

Viewed

{rom

the

side,

the

sty/us

should

be

inthe

rectengular

gop,

When

the

cartridge

is

correctly

positioned,

carefully

ighten

the

mounting

screws.

Then

check

with

the

gauge

once

again

to

make

sure

the

cartridge

has

not

shifted

when

being

tightened,

5.

Connect

the

tonearm

leads

to

che

cartridge

pins.

following

this

colar

code:

Reg

A

(right

channe)

Grean

GR

(right

channel

ground)

Blue

GL

{lett

channel

ground}

Write

L

{left

channel)

8.

Place

the

mounted

cartridge

under

the

tonearm

head

so

that

the

pins

on

the

top

surface

of

the

mounting

plate

fit

co

the

corresaonding

holes

on

the

bottom

surface

of

the

tonearm

head

7

Secure

the

cartidgein

place

by

turning

tha

attachment

screw

clockwise

(13),

Tuning

the

mechanical

anti-resonance

filter

The

tuning

antiresonator

enables

optimum

adaptation

of

the

tonearm

to

the

cartridge

being

used,

Not

criy

Dual

ULM

certridges

but

also

conventional

1/2"

cartridges

can

be

apti-

‘rally

adapted

with

this

device.

For

the

ULM

cartridge

or

for

the

1/2"

cartridge

you

can

find

the

valuo

to

be

set

in

the

follo-

wing

disgram,

Locate

the

totsl

weight

of

the

cartridge

inciuding

mounting

jnare

on

the

horizontal

scale.

Move

up

to

the

point

on

the

ine

corresponding

to

the

compliance

of

your

cartridge.

Then

look

at

the

vertical

scale

at

jeft

and

read

off

the

optimum

‘uning

value.

‘Net

weight

and

compliance

of

cartridge

can

be

found

in

its

ac

‘companying

data

sheet,

Add

to

the

net

weight

of

the

cartridge

‘the

weight

of

the

mounting

hardware

(mounting

plate,

screws,

spacers,

and

nuts),

With

Dual

ULM

cartridges,

net

weight

and

{otal

weight

are

the

sam

{In

order

to

set

the

tuning

anti-resonator,

turn

the

scale

ring

in

clockwise

direction

until

you

see

the

determined

scale

value

‘above

the

pointer.

tis

recommended

to

carry

out

tuning

setting

before

inserting

the

counterbalance

in

the

tonearm,

In

this

case,

hold

the

stem

with

one

hand

and

turn

the

scale

ring

with

the

other.

Note:

If

you

turn

the

damping

selector

in

the

range

of

the

wedge-shaped

marking

to

stop

position,

the

tuning

anti-resona-

‘or

is

safo-guarded

against

transport

damage.

Compliance

of

HiFi

magnetic

and

dynamic

cartridges

Cartridge

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Stylus

Cartridge

mass.

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|

pressure

|

Mounting

Manufac-|

Typ

Car

|

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|

Total

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1S

76

1

94

Balancing

the

tonearm

Note:

1/2inch

cartridges

weighing

6.5

grams

or

more

will

re-

Quiere

the

addition

of

weights

on

the

rear

of

the

counterbalance

in

order

for

the

tonearm

to

be

properly

balanced.

Two

such

‘weights

are

provided

in

the

accessory

package.

For

cartridges

weighing

approximately

6.5

grams,

screw

the

weight

with

the

‘threaded

screw

(the

smaller

thread)

into

the

rear

of

the

coun-

terbalance.

For

cartridges

weighing

more

than

6.5

grams,

the

second

weight

should

be

screwed

onto

the

first.

1.

With

the

tonearm

locked

and

the

stylus

force

and

anti-

skating

dials

set

at

0,

sip

the

shaft

of

the

counterbalance

onto

the

rear

of

the

tonearm,

guiding

it

on

by

the

V-shaped

track,

Do

not

tighten

the

set

screw.

2.

If

your

cartridge

has

@

removable

stylus

protector,

detach

it

before

balancing

the

tonearm.

3.

Unlock

the

tonearm

and

move

it

to

the

inside,

past

the

‘switch-on

position.

Move

the

cue-contral

to

the

&

position,

‘Then

notice

if

the

tonearm

floats

either

up

or

down,

4,

Slide

the

counterbalance

back

and

forth

until

the

tonearm

is

approximately

balanced

for

the

weight

of

the

cartridge.

Then

tighten

the

set-screw.

5.

For

fine

balance,

turn

the

knurled

ring

of

the

counter-

balance

until

the

tonearm

floats

freely

parallel

to

the

platter.

Applying

tracking

force

Pace

the

tonearm

on

the

rest

post

and

dial

the

tracking

force

recommended

for

your

cartridge,

Tracking

force

can

be

set

to

any

value

from

0

to

3.0

grams.

Between

0

and

1.5

grams,

the

dial

is

calibrated

in

increments

‘of

0.1

gram.

between

1.5

and

3.0

grams,

in

increments

of

0.25

gram.

Note:

The

Dual

tonearm

can

track

at

a

force

as

lowas

0.25

gram.

However,

you

should

not

actually

attempt

to

track

at

so

low

a

force

as

this

is

below

the

optimum

tracking

force

on

any

cartridge

available

today.

In

all

cases,

the

tracking

ability

of

the

cartridge

you

select

will

determine

the

best

stylus

force

to

‘se

It

is

usually

wise

to

set

tracking

force

toward

the

higher

end

of

the

range

suggested

by

the

manufacturer

of

your

cartridge.

If

oud

passages

with

a

good

record

sound

clean,

you

can

reduce

the

force

slightly.

but

listen

for

the

harshness

or

fuzziness

that

Occurs

with

insufficient

tracking

force,

Too

light

a

tracking

force

produces

distortion,

and

also

produces

groove

skipping

and

excessive

record

wear

Too

heavy

a

tracking

force

restricts

the

ability

of

the

stylus

to

follow

the

contours

of

the

groove

and

can

also

cause

excessive

record

wear.

Applying

anti-skating

‘Use

the

bottom

scale

(©)

for

conical

styli,

the

top

scale

()

for

elliptical

styli.

Dia!

to

the

same

number

you

have

set

for

wrecking

force.

Operation

After

the

initial

installation

and

after

the

unit

has

been

trans-

ported,

lock

the

tonearm

on

the

rest

post,

and

move

the

‘operating

switch

to

“start”.

This

will

ensure

the

automatic

ceyciing

mechanism

is

in

neutral

Single-play

operation

For

12,33

rpm

records,

insert

the

short

spindle

into

theshatt.

For

7”,

48

rpm

records,

use

the

large-hole

adapter.

Automatic

start

‘The

tonearm

will

index

12"

records

when

motor

speed

is

set

for

33

1/3

rpm;

7”

records.

when

speed

is

set

for

45

rpm.

Move

the

operating

switch

to

“start.

(The

motor

will

start,

the

tonearm

will

rise,

move

over

to

the

record

and

descend

to

play.)

Cue-control

start

Move

the

cue-control

lever

to

position

&

,

then

place

the

tone-

arm

over

the

record

where

you

would

ike

play

to

begin.

(The

platter

will

begin

to

rotate

when

the

tonearm

is

moved

toward

the

record.)

To

lower

the

tonearm,

flick

the

cueccontrol

lever

to

To

interrupt

or

stop

play

For

a

brief

interruption,

move

the

cue-control

fever

to

X

and

the

tonearm

will

it,

(The

platter

will

continue

to

rotate

To

stop

play,

either

move

the

operating

switch

to

“stop,”

or

lift

the

toneaem

from

the

record

(sither

by

hand

or

with

the

‘cue

contol)

and

move

it

to

the

rest

post,

(The

motor

will

shut

off

automatically.)

Continuous

play

When

the

continuous-repeat

switch

(7)

is

in

position

GO

,

the

‘tonearm

will

repeat

the

record

until

switched

to

the

single-play

position,

ar

until

the

operating

switch

is

moved

to

“stop.

Multiple-play

Insert

the

long

spindle

(20)

into

the

platter

shaft

so

that

the

kay

at

the

bottom

of

the

spindle

fits

into

the

slot.

Lock

the

spindle

in

place

by

pressing

it

down

and

turning

clockwise

until

it

stops.

Up

to

six

records

can

now

be

played

in

automatic

sequence.

using

the

same

operation

as

in

single

play.

To

interrupt

any

record

in

play

and

change

to

the

next one,

move

the

operating

switch

to

“start.”

Records

already

played

can

be

lifted

back

onto

the

soindle

far

replay

or

to

be

removed,

The

spindle

need

not

be

removed.

Note:

An

optional

large-hole

multiole-play

spindle

for

45

rpm

records

is

available

at

your

Dual

dealer.

Pitch-control

and

strobe

Each

of

the

two

speeds

can

be

varied

with

the

pitch

control

To

set

the

speeds

precisely

at

33

1/3

or

45

rpm.

play

a

record

while

viewing

the

illuminated

strobe

bars

on

the

platter

rim.

Each

speed

is

exactly

correct

when

no

movement

of

the

bars

is

observed.

If

the

bars

appear

to

move

counterclockwise,

motor

speed

is

slow.

Turn

the

pitch-control

clockwise

to

advance

speed.

If

the

bars

are

moving

clockwise,

the

speed

cen

be

Slowed

by

turning

the

pitch-control

counter-clockwise.

‘The

pitch-contral

can

also

provide

other

than

exact

speed,

For

example,

when

you want

to

match

the

pitch

of

recorded

‘music

to

a

live

musical

instrument,

Also,

when

making

tepe

recordings,

you

may

orefer

that

the

tape

sound

flatter

or

shar-

pper

than

at

“normal”

speed.

You

can

also

"stretch"

or

shrink”

a

recorded

selection

slightly

to

match

a

length

of

motion

pic:

sure

film,

Adjustment

of

tonearm

indexing

When

the

operating

switch

is

moved

to

“start”,

the

tonearm

automatically

lifts,

moves

to

the

record

and

lowers.

The

stylus

should

set

down

in

the

lead-in

groove.

If

the

stylus

of

another

cartridge,

installed

later,

sets

down

too

far

inside

or

outside

the

lead-in

groove,

proceed

as

follow.

Slightly

lift

the

Dual

emblem

located

at

the

right

front

comer

Of

the

chassis

and

move

it

outward.

The

adjustment

screw

(8)

will

then

be

visible

through

the

opening,

Adjustment

of

tonearm

indexing

for

12”

(30

em)

records.

Move

speed

selector

(17)

10

45”

and

correct

the

setting

by

turning

the

adjustment

screw

slightly.

(use

a

suitable

screw-

river)

If

the

stylus

sets

down

too

far

inside

the

lead-in

groove,

turn

the

screw

clockwise,

If

the

stylus

sats

down

too

far

outside

the

leadin

groove,

turn

the

screw

counterclockwise.

Adjustment

of

tonearm

indexing

for

7”

(17

em)

records.

Move

the

speed

selector

(17)

to

"33"

and

proceed

as

indicated

above

for 12”

records

Cue-control

height

adjustment

The

height

of

the

stylus

tip

over

the

record

in

the

raised

posi-

tion

¥

can

be

varied

approximately

1/4”

(6

mm)

by

turning

the

adjustment

screw

(4).

Do

not

exceed

this

range

as

the

tonearm

movement

may

be

im-

peded.

Removing

the

platter

The

platter

is

secured

to

the

shaft

by

the

decorative

center

ring.

To

remove

the

platter,

press

the

ring

slightly

downward

‘and

turn

it

clockwise

approximately

60°

until

it

releases.

The

platter

can

now

be

lifted

off.

To

place

the

platter,

reverse

the

above

procedures,

turning

the

ring

counterclockwise.

Replacing

the

drive

belt

Remove

the

platter

as

described

above

and

set

the

old

belt

aside,

Place

the

new

balt

around

the

drive

platter

of

the

tum-

table,

with

the

textured

(ground)

side

of

the

belt

on

the

in-

side.

‘Then

slip

the

belt

around

the

Vario-pulley

and

inside

the

guide

fork.

Finally,

lower

the

platter

onto

the

shaft

and

secure

with

the

decorative

center

ring.

Stylus

care

In

normal

use,

every

stylus

is

subject

to

wear

and

tear.

We

recommend

that

yours

be

inspected

periodically,

and

cer-

tainly

after

approximately

300

playing

hours

in

the

case

of

dimond

styli.

Worn

or

damaged

(chipped)

styii

will

grind

the

modulation

out

of

the

grooves

and

damage

your

records.

For

replacement,

obtain

only

the

stylus

tyne

recommended

in

the

‘Technical

Data

for

your

cand.

imitations

can

cause

noticeable

Joss

in

sound

quality

and

rapid

record

wear.

Piease

keop

in

mind

that

the

stylus

and

cantilever

are

ne.

cessarily

quite

delicate

in

arder

to

provide

quality

perfor-

mance.

They

ae

extremely

sensitive

to

harsh

handling,

2c:

cidental

blows,

etc.

Take

the

cartridge

in

the

holder

to

your

Dua)

deaier

for

inspection

of

the

stylus,

(Removal

of

cartriage

holder

is

described

abovel

Servicing

Your

Dual

has

a

limited

warranty

of

wo

years

trom

date

of

purchase

against

manufacturing

defects

or

faulty

parts.

Should

your

unit

require

service,

please

write

to

our

service

epartment

{address

on

the

back

cover!,

describing

your

complaint.

During

the

warranty

period,

the

Dual

will

be

serviced

without

ccharae

under

the

conditions

statad

on

the

warranty

card.

Note:

Only

factory-authorized

service

stations

should

service

the

Dual,

any

servicing

by

anyone

else

will

void

our

warranty

‘After

it

has

been

serviced,

your

turntable

will

be

shipped

back

to

you

Technical

data

Currant

AC

50

or

60

Hz,

changeable

by

changing

metor

pulley

Line

voltage

115

or

230

V,

changeable

Drive

Qual

16:00le

synchronous

motor:

precision

flat

belt

for

flywheel

drive

Power

consumption

approx.

8

watts

Starting

time

(to

esch

nominal

speed)

approx.

2.5

seconds

at

33.3

rom

Power

consumption

at

220

V,

50

Hz:

approx,

75mA

at

117

V,60Hz:

approx.

140.

mA

Platter

Non-magnetic,

detachable,

1

kg,

304

mm

@

Platter

speeds

23

1/3

and

45

rom

Automatic

tonserm

set-down

coupled

with

speed

adjustment

Pitch

control

variation

3t

both

platter

soeeds

Adjustment

range

at

33

1/3

rpm

approx.

1

semitone

(6%)

‘Speed

contro!

with

illuminated

stroboscope

for

platter

speeds

33

1/3

and

45

rom,

50

and

60

Hz

‘Sensitivity

of

the

illuminated

strobe

for 0.1

%

speed

deviation

6

division

markings

per

minute

at

90

Hz,

7.2

division

markings

per

minute

at

60

Hz

Total

wow

and

flutter

DIN

£007

%

WRMS

30.04%

Rumble

(according

to

DIN

45

500)

Unweighted

48

dB

Weighted

70.d8

Tonearm

Distortion-tree

“ultratow-mass”

aluminum

tubular

tonearm

in

4-point

gimbal

bearing

Effective

tonearm

length

221

mm

Ottset

angle

24°

4

Tangential

tracking

error

0.16°/cm

‘Tonearm

bearing

friction

(roterrad

to

stylus

tip)

0.07

mN

(0.007

g)

Adjustable

overhang

5

mm

Dual]

United

Audio

Products,

Inc.,

120

So.

Columbus

Ave.,

Mt.

Vernon,

N.Y.

10553

Exclusive

US.

Distribution

Agency

for

Dual

2201823

Pinta

in

Germany

by

De