Stanton 210 B Installation And Operating Instructions Manual

INSTALLATION

AND

OPERATING

INSTRUCTIONS

MODEL

210

I3

STEREO

TURNTABLE

PREAMPLIFIER/EQUALIZER

COPYRIGHT

1974

STANTON

MAGNETICS,

INC.

PLAINVIEW,

~EW

YORK

. ,

I.

SPECIFICATIONS

I-I

GENERAL:
The

Stanton

Model

210B

Preamplifier

is

designed

for

Professional

use

as a stereo

turntable

preamplifier

with

the

standard

NAB

(Mar

'64)

record

playback

equali-

zation.

It

may

also

be

used

as

two

separate

monophonic

channels.

The

unit

is

equipped

with

front

panel

gain

and

high

frequency

adjustment

controls

for

each

channel.

In

addition,

it

has

provision

for

use

as a dual

flat

response

preamplifier

by

means

of a front

panel

switch.

Provision

is

made

for

table

top

or

panel

mounting.

,

1-2

DETAILED

SPECIFICATIONS:

Output

Level:

Distortion:

Output

Impedance:

Frequency

Response:

Gain

(Controls

at

max.)

Maximum

input

level

before

clipping

@

1kHz:

Noise

(Input

terminated

in

cartridge):

Input

Impedance:

Channel

Separation:

Input

Connectors:

Output

Connectors:

Power

Requirements:

Mechanical

Dimensions:

Mounting

Provisions:

1-1

+20

dBm

Maximum

Less

than

0.25% @ +20

dbm

150

or

600

ohms,

internally

Selectable

Transformer

Output.

Shipped

wired

for

600

ohm

isolated

outputs.
+ldB

from

30

to

20,000

Hz

Either

Flat

or

NAB

Standard

Equalization

Curve.

Individual

high

frequency

adjustments

for

N1\B

curve.

52dB

+2

@ 1 kHz

(NAB)

54dB

+2

@ 1

kHz

(FLAT)

150

mV

Better

than

-60dB

Ref.

5.0

mV

input

(NAB)

47,000

ohms

60dB

Minimum

(30-15kHz)

RCA

Phono

Jacks

Five

Terminal

Barrier

Strip

117

Vac

60

Hz,S

W

Panel

3

1/2"

x 9

1/2"

Overall

Case

Size

3"

x 8

1/2" x 7"

behind

panel

Normal

Table-Top

or

Cabinet

Mounting.

Optional

Rack

Panel

Adapter

Available.

II.

INSTALLATION

AND

OPERATION

II-l

INSTALLATION:

The

Stanton

Model

210B

Preamplifier

requires

no

special

installation

as a table

top

unit,

other

than

plugging

into

a

115

volt

AC

power

line.

For

panel

mounting

it

will

usually

be

necessary

to

unscrew

the

four

rubber

feet.

Note:

The

Model

210B

is

shipped

with

the

output

trans-

formers

factory

wired

for

600

ohm

isolated

outputs.

If

it

is

desired

to

use

the

150

ohm

outputs,

the

jumpers

must

be

changed

internally

on

the

printed

curcuit

boards

as

shown

below:

600

JL

/501"-

If

the

preamplifier

is

mounted

in a metal

cabinet,

there

is

the

possibility

of

additional

ground

loops

since

both

RCA

input

phono

jacks

are

grounded

to

the

chassis,

which

in

turn

is

grounded

tnrough

the

three

wire

AC

line

cord.

If

the

additional

chassis

ground

creates

(through

the

metal

cabinet)

an

undesireable

ground

loop,

simply

plug

in

the

AC

line

through

a

standard

NEMA

grounding

to

non-

grounding

adapter

plug.

II-2

OPERATION:
After

mounting

the

preamplifier

and

completing

the

desired

input

and

output

connections,

the

power

line

can

be

connected,

the

FLAT

or

NAB

response

selected

with

the

front

panel

switch,

and

the

front

panel

power

switch

turned

on.

The

POWER

ON

indicator

should

light

and

the

output

level

or

gain

of

the

individual

channels

can

now

be

adjusted.

The

LEVEL

(gain)

controls

are

effective

in

both

the

FLAT

and

NAB

response

positions,

while

the

HF-ADJ

controls

are

only

effective

in

the

NAB

position.

The

latter

controls

allow

the

high

frequency

roll-off

of

the

amplifiers

to

be

adjusted

for

more

or

less

roll-off

than

the

standard

NAB

record

reproducing

response.

II-l