Yamaha EQ-500U User manual

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2

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$

BEE

OL

S:

A

be

§

§

ay

ae

Bon

Oe,

w

pes

5

ay

se

r:

120

vy

2

2%

ee

ay

E

En

+

SS

RISK

OF

ELECTRIC

SHOCK]

|

l

DO

NOT

OPEN

p

~

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.

e

Explanation

of

Graphical

Symbols

The

lightning

flash

with

arrowhead

symbol,

within

an

equilateral

triangle,

is

intended

to

alert

you

to

the

presence

of

uninsulated

“dangerous

voltage“

within

the

product's

enclosure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

The

exclamation

point

within

an

equilateral

triangle

is

intended

to

alert

you

to

the

presence

of

important

operating

and

maintenance

(servicing)

instructions

in

the

literature

accom-

panying

the

appliance.

SAFETY

INSTRUCTIONS

1

Read

Instructions

—

Allthe

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

other

instructions

should

be

followed.

5

Water

and

Moisture

—

The

appliance

should

not

_

be

used

near

water

—

for

example,

near

a

bathtub,

washbow/l,

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.

7

Wall

or

Ceiling

Mounting

—

The

appliance

should

be

mounted

to

a

wall

or

ceiling

only

as

recommended

by

the

manufacturer.

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

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,

stoves,

or

other

appliances

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,

convenience

receptacles,

and

the

point

where

they

exit

from

the

appliance.

12

Cleaning

—

The

appliance

should

be

cleaned

only

as:

recommended

by

the

manufacturer.

13

Nonuse

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

fail

into

and

liquids

are

not

spilled

into

the

inside

of

the

appliance.

15

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

cabinet

damaged.

16

>

Servicing

—

The

user

should

not

attempt

to

—

service

the

appliance

beyond

those

means

described

in

the

operating

instructions.

All

other

servicing

should

be

reterred

to

qualified

service

personnel.

17

Grounding

or

Polarization

—

The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization

of

an

appliance

is

not

defeated.

CAUTION:

READ

THIS

BEFORE

OPERATING

YOUREQ-SO0OU

=

—

1

|

For

optimum

operation

of

this

sophisticated

stereo

graphic

equalizer,

read

this

manual

carefully

for

proper

installation

and

connecttion.

2

Ze

For

best

results,

the

EQ-500U

should

not

be

placed

in

direct

sunlight

or

near

a

heat

source.

Choose

a

location

free

from

vibrations

and

excessive

dust,

cold,

or

moisture,

and

do

not

place

near

sources

of

hum

|

such

as

transformers

or

motors.

3

|

If

a

foreign

object

falls

into

set,

or

if

the

set

must

be

opened

for

any

reason,

contact

your

dealer

to

avoid

risking

damage

to

the

unit

or

shock:

4

Do

not

apply

excessive

force

to

switches

and

knobs..

5

if

the

unit

must

be

moved,

first

pull

out

the

power

cord

and

disconnect

all

connection

wires.

6

| l

To

prevent

damage

to

the

EQ-500U'’s

finish,

do

not

clean

with

chemical

solvents.

Instead,

use

a

clean,

dry

cloth.

7

Read

the

“troubleshooting”

section

in

this

manual

for

‚common

operating

errors

if

any

problems

occur.

If

they

cannot

be

remedied

i

in

this

way:

contact

your

‚dealer.

8

Check

power

requirements

of

audio

components

before

connecting

them

to

the

AC

outlet

on

the

back

panel.

Ifthey

require

more

power

than

ne

outlet

can

provide

do

not

connect

them.

9

Keep

this

manual

in

a

safe

place

for

future

reference.

8

When

connecting

your

equipment,

turn

the

power

to

each

unit

off

and

make

sure

that

you

have

correctly

connected

the

Left

(L)

and

Sor

(R)

channels.

Tape

deck

Power

plug

from

other

unit.

Eanes)

PR

"

Unswitched

can

be

supplied

Ge:

Oe

to

other

components

with

a

d

ee

combined

power

nn

of

up

to

400W.

LINEIN]

LINE

OUT

EQ-500U

@

YAMAHA

so

er

l

ee

BÜVATS

SWATTS

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NIPPON

GAKK!

CO.,LTD.

MALDE

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Jaren,

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CAUTION

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RAMA

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PENDEL

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GNI

ORE

Connect

to

an

AC

outlet

or

to

the

amplifier

or

receiver

Auxiliary

power

outlet.

The

power

consumption

of

this

unit

is

15W.

Check

the

power

rating

of

the

amplifier

or

receiver

outlet

before

use.

The

accessory

jacks

are

provided

on

some

of

YAMAHA's

newest

amplifiers

and

receivers.

YAMAHA

nauna

SOUNO

STCO

AMELECA

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TED

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a

Per

irre

*

For

the

amplifier

or

receiver

connections,

please

refer

to

the

amplifier

or

receiver

owner's

manual.

Amplifier

or

receiver

E

CONNECTING

AN

AMPLIFIER

OR

RECEIVER

Check

from

the

connection

diagram

that

you

have

made

the

correct

connections.

Please

note

that

input

procedures

and

program

source

selection

may

vary

according

to

the

capabilities

of

the

amplifier

or

receiver

and

the

connections

between

it

and

this

unit.

®

To

connect

an

integrated

amplifier

or

receiver

using

the

ACCESSORY

jacks:

The

ACCESSORY

jacks

are

provided

on

some

5

of

Yamaha's

newest

amplifiers

and

receivers.

|

1.

Connect

the

SEND

jacks

of

the

ACCESSORY

jacks

to

the

LINE

IN

of

this

unit.

2.

Connect

the

RECEIVE

jacks

of

the

ACCESSORY

jacks

to

the

LINE

OUT

of

this

unit.

The

program

source

selected

with

the

integrated

amplifier's

or

receiver's

input

selector

can

be

equalized.

WIESE?

AMPLIFIER

EE

eas

(

)

aS

ee

gr

mjo

meS

T

fy

ees

EQ-500U

©

a

®

To

connect

an

integrated

amplifier

or

receiver

without

using

the

ACCESSORY

jacks:

1.

Connect

the

REC

OUT

jacks

of

the

TAPE

jacks

to

the

LINE

IN

of

this

unit.

2.

Connect

the

TAPE

PB

jacks

of

the

TAPE

jacks

to

the

LINE

OUT

of

this

unit.

|

The

following

operations

can

be

carried

out

via

the

amplifier

or

receiver:

Program

Source

Setting

With

a

REC

OUT

selector.

Selected

with

the

|

Set

the

INPUT

REC

OUT

SELECTOR

to

Selector.

TAPE.

Selected

with

the

input

selector.

switch.

ON.

With

a

TAPE

MONITOR

Turn

the

TAPE

MONITOR

switch

INTEGRATED

AMPLIFIER

EQ-500U

lei]

®

To

connect

a

separate

amplifier

or

receiver:

1.

Connect

the

FRE

OUT

jacks

of

the

control

amplifier

to

the

LINE

IN

jacks

of

this

unit.

2.

Connect

the

MAIN

IN

jacks

of

the

power

amplifier

to

the

LINE

OUT

jacks

of

this

unit.

|

In

this

way,

you

will

be

able

to

equalize

the

program

source

selected

with

the

control

amplifier

input

selector.

| |

The

pink

noise

level

cannot

be

adjusted

with

the

OUTPUT

control

amplifier’s

volume

control.

Adjust

the

volume

level

with

the

OUTPUT

LEVEL

control

of

this

unit.

EQ-500U

INPUT

POWER

AMPLIFIER

E

CONNECTING

A

TAPE

DECK

=-

Connect

the

tape

deck

to

the

TAPE

jacks.

Connect

the

PLAY

jacks

to

the

tape

deck’s

LINE

OUT

terminal,

and

the

REC

jacks

to

the

tape

deck's

LINE

IN

jacks.

E

AUXILIARY

POWER

OUTLET

(AC

OUTLET)

This

is

an

unswitched

auxiliary

outlet

which

can

be

used

to

supply

power

to

other

audio

equipment.

The

other

equipment

must

have

a

power

consumption

rating

less

than

400W.

Power

will

be

supplied

even

if

this unit

is

turned

off.

CAUTION:

|

u

Always

be

sure

to

check

that

the

power

consumption

of

the

unit

you

are

connecting

is

less

than

400W.

NATURAL

SOUND

GRAPHIC

EQUALIZER

EQ-500U

|

YAMAH

PINK

SUSSDNIG

NOISE

FILTER

@

FREQUENCY

SPECTRUM

ANALYZER

This

frequency

spectrum

analyzer

divides

a

30

Hz

—

16

kHz

frequency

range

into

10

bands

and

displays

the

relative

signal

level

of

each

band.

Since

the

frequency

of

each

band

corresponds

to

an

equalizing

|

control

frequency,

you

can

check

the

equalizing

effect

directly.

@

Meter

select

switches

These

switches

are

used

to

select

the

SPECTRUM

ANALY

ZER

display

mode.

These

buttons

allow

you

to

independently

select

a

spectrum

analyzer

display

of

output

level

on

the

left

and

right

channels,

respectively.

When

both

buttons

are

pressed,

the

spectrum

analyzer

displays

a

combined

output

level

of

both

channels.

5

|

METER

LEVEL

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240Hz

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*

When

the

PINK

NOISE

switch

is

ON,

the

LEFT

and

RIGHT

switches

can

be

used

to

display

the

pink

noise

level.

®

METER

LEVEL

control

This

is

used

to

control

the

level

displayed

by

the

spectrum

analyzer.

No

display

will

appear

when

the

knob

is

at

the

“0”

position.

The

variable

level

display

it

provides

facilitates

monitoring

a

wide

range

of

relative

output

levels

with

ease.

GRAPHIC

EQUALIZER

SOH2

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120Hz

S40Hz:

ABORZ

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CHANNEL

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LEVEL

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GRAPHIC

EQUALIZER

controls

Independent

level

controls

for

both

the

left

and

right

channels

are

provided

for

each

of

the

ten

frequency

bands.

These

are

sliding

type

controls,

and

in

the

center

position

provide

no

level

boost

or

cut.

A

£12.

dB

range

of

equalization

is

available

on

each

frequency

band.

Red

LED

indicators

on

each

control

light

when

the

left

EQUALIZER

MODE

switch

is

set

to

ON,

providing

visual

confirmation

of

level

settings

at

a

glance.

When

the

left

EQUALIZER

MODE

switch

is

set

to

DEFEAT,

these

controls

will

have

no

effect,

regardless

of

their

settings.

e

30

Hz

slide

control

Moving

this

slide

control

down

reduces

very

low

frequency

rumble,

or

compensates

a

warped

disc.

Moving

the

slide

control

"Up

emphasizes

the

very

low

frequencies.

e

60

Hz

slide

control

Moving

this

slide

control

down

reduces

AC

line

hum

and

(reduces)

the

lower

tone.

Moving

slide

control

up

emphasizeslow

tones

such

as

3

Pipe

organ;

drums,

bass,

etc.

®

120

Hz

slide

control

This

range

supports

the

lower

end

ofthe

music

and

controls

overall

depth.

The

slide

control

may

be

moved

down

to

eliminated

'

‘boomy

bass”

caused

by

room

acoustics.

|

ae.

Fas

©

240

Hz

slide

control

| |

This

is

the

middle-to-lower

tone

range,

but

it

has

an

effect

on

the

overall

sound.

Mainly,

the

richness

of

the

strings

can

be

controlled.

When

strings

are

overly

warm

under

actual

listening

conditions,

moving

the

slide

control

down

may

help.

e

480

Hz

slide

control

| |

This

range

is

the

foundation

of

music

Aeludine

both

instruments

and

the

human

voice

and

it

controls

the

overall

power

ofthe

sound.

As

the

slide

control

is

moved

up,

marange

sounds

will

become

more

forward.

—

e

1

kHz

slide

control

|

This

range

affects

the

presence

of

the

music

(depth

of

tone),

and

is

especially

effective

when

playing

back

vocals.

Moving

the

slide

control

up

and

down

will

cause

the

vocals

to

be

more

ome

front”

or

more

reserved.

aa

ae

|

è

2

kHz

slide

control

©

This

is

the

frequency.

range

where

the

human

ear

is

most

sensitive.

Boosting

the

level

slightly

will

add

brilliance,

crispness,

etc.

to

instruments.

Cutting

the

level

slightly

makes

for

easy

listening.

®

4

kHz

slide

control

The

human

ear

is

also

highly

sensitive

in

this

range.

Mainly

effective

for

increasing/decreasing

the

harmonics

of

the

primary

tone.

Boosting

this

range

a

bit

makes

strings

more

intense.

Over-intense,

tiresome

music

becomes

easy

listening

when

the

slide

control

is

moved

down.

|

®

8

kHz

slide

control

High

frequency

range.

Strings,

horns,

etc.

will

be

emphasized

and

this

gives

a

slight

difference

in

tone

glaze

and

quality.

Moving

the

slide

control

down

reduces

over-emphasized

consonants

in

vocals

and

objectionable

tape

hiss.

Moving

the

slide

control

up,

on

the

other

hand,

improves

the

sharpness

of

such

instruments

as

cymbals.

©

16

kHz

slide

control

—

Super-high

frequency

range.

This

affects

high

harmonics

rather

than

the

fundamental

tones

of

the

instruments

themselves,

and.has

an

effect

on

the

delicacy

and

atmosphere

of

the

music.

Maving

the

slide

control

up

adds

a

delicate,

fresh

sound

to

cymbals,

triangles,

etc.

@

OUTPUT

LEVEL

control

This

controls

LINE

OUTPUT

level

of

this

unit.

*

REC

OUT

level

cannot

be

changed.

|

@

EQUALIZER

MODE

switches

Selects

the

equalization

mode.

‘DEFEAT:

No

equalization

—

flat

response

iS-

achieved.

ON:

The

equalizer

control

indicators

light

up

and

equalization

can

be

effected.

REC:

The

signal

routed

to

the

Rec

Out

terminals

i

iS

equalized.

@

TAPE

monitor

switch

Used

to

select

a

tape

deck

for

tape

monitoring.

2-50

OU

@

SUBSONIC

FILTER

switch

|

This

switches

the

subsonic

filter

on'and

off

to

cut

frequencies

in

the

15

Hz

range

as

selected

by

the

SUBSONIC

FILTER

controls.

©

PINK

NOISE

switch

_

|

Pink

noise,

which

is

emitted.

by

a

built-in

generator,

is

a

random

noise

signal

which

is

distributed

at

an

even

level

at

all

frequencies,

and

when

monitored

through

‘the

supplied

microphone,

allows

you

to

measure

the

acoustic

response

characteristics

of

the

listening

environment.

:

@

MIC

jack

This

is

the

input

terminal

for

the

microphone

to

be

used

with

the

spectrum

analyzer

to

measure

the

acoustic

response

characteristics

of

the

listening

|

environment.

@

POWER

switch

This

switch

turns

the

power

to

this

unit

ON

and

OFF.

The

switch

is

pressed

once

to

turn

the

power

on,

and

a

second

time

to

turn

the

power

off.

E

THE

MM-110

ELECTRET

CONDENSER

MICROPHONE

An

electret

condenser

microphone

for

use

in

measuring

the

acoustic

response

characteristics

of

the

listening

environment

is

provided

with

this

unit.

Microphone

input

will

be

displayed

on

the

spectrum

analyzer

when

the

microphone

is

connected

to

the

front

panel

MIC

jack,

the

MIC

switch

is

turned

on,

and

a

signal

of

level

high

enough

to

be

measured

|

is

output

through

the

speakers.

|

-*

Remove

the

battery

from

the

ierephong

if

you

do

not

expect

to

be

using

it

for

some

time.

_.

Microphone

switch

—Changing

the

battery

|

(T)

Remove

the

cover.

(2)

Insert

AA

“R06”

~

battery,

or

equiva-

lent

making

sure

that

the

positive

and

negative

poles

are

z

facing

in

the

right

(3)

After

the

battery

has

direction.

been

changed

snap

the

lid

back

on.

If

the

battery

runs

down,

the

sensitivity

of

the

microphone

will

decrease.

Change

the

battery

as

soon

as

it

starts

to

run

down.

Battery

Cautions

lf

the

battery

is

replaced

incorectly,

dangerous

leakage

or

collosion

may

result.

Be

especially

careful

of

the

Tolowiog

points:

When

replaceing:

@

Insert

the

battery

with

correct

(4)

and

(-)

indications

correctly

into

the

battery

compartment.

Rechargeable

batteries:

®

There

are

two

types

of

batteries;

rechargeable

and

nonrechargeable.

Check

the

cautions

label

on

the

—

battery

before

use.

Ä

To

avoid

accidents:

®

Never

disassemble,

heat

or

throw

a

battery

into

a

fire.

When

disposing,

deal

with

batteries

as

inflammable

matter.

—

®

Do

not

short

the

(+)

and

(~)

terminals

directly.

When

battery

leakage

occurs:

©

Wipe

off

the

liquid

in

the

battery

compartment

and

replace

the

battery

with

new

one.

E

THE

SPECTRUM

ANALYZER

.

The

spectrum

analyzer

displays

the

frequency

dispersion

of

signals

for

direct

monitoring.

Monitor

levels

can

be

adjusted

with

the

METER

LEVEL

control

for

enhanced

readability

of

the

level

adjustment.

Enhancing

Sound

Quality

As

the

equalizer

control

frequencies

are

in

agreement

with

the

frequency

divisions

of

the

spectrum

analyzer,

equalization

effects

can

be

verified

visually.

Frequency

Bishenion

ers

According

to

the

Program

Source

®

Frequency

dispersion

i

in

a

source

with

numerous

low

w

frequency

components

|

30

60

+20

240

sau

th

an

Jr

Bk

16k

HZ

SPECTRUM

ANALYZER

®

Frequency

ee

ina

wee

with

numerous

middle

frequency

components

_

30

sn

120

240

ABO

tk

|

Bk

ak

=

"3

TEx

SPECTRUM

ANALYZER

®

Frequency

dispersion

in

a

source

with

numerous

ch

an

components

30

60

120

240

ART

lk

Bk

Ak,

Bk

18k:

SPECTRUM

ANALYZER,

eee

l

This

unit

provides

control

of

10

bands

for

a

total

range

of

30

Hz

to

16

kHz.

Thus,

the

GRAPHIC

EQUALIZER

controls

can

be

used

to

finely

adjust

each

frequency

‚as

desired.

|

In

addition,

by

using

the

built-

‘in

pink

noise

generator

and

the

spectrum

analyzer

together,

the

acoustic

_

characteristics

of

the

listening

room

can

be

measured

and

compensated

for.

Before

operation:

e

Refer

to

the

respective

owner's

manuals

on

how

to

operate

the

amplifier,

receiver,

tape

deck,

and

so

on.

®

Set

the

tone

controls

of

the

connected

amplifiers

or

receiver

to

FLAT

or

DEFEAT.

a

er

PLAY

BACK

OF

THE

PROGRAM

SOURCE

WHICH

IS

TO

BE

EQUALIZED

1.

Press

the

POWER

switch.

2.

Set

the

left

EQUALIZER

MODE

switch

to

ON.

3.

Select

the

program

source.

When

playing

back

a

program

source

which

is

-

connected

to

the

amplifier

or

receiver,

turn

the

TAPE

monitor

switch

or

this

unit

to

OFF.

(For

signal

path

refer

to

the

right

figure.)

(The

procedure

for

selecting

a

program

source

from

the

amplifier

or

receiver

will

differ

according

to

the

amplifier

or

receiver.

Refer

to

the

section

on

“Connecting

an

Amplifier

or

Receiver.”)

When

using

a

tape

deck

connected

to

this

unit,

set

the

TAPE

switch

to

ON.

4.

Start

playback

of

the

program

source,

and

adjust

the

volume

with

the

amplifier

s

or

receiver's

volume

control.

5.

Operate

the

GRAPIHC

EQUALIZER

while

listening

.

to

the.sound

in

order

to

obtain

the

optimum

_

frequency

response

of

the

signal.

*

Check

the

effect

by

alternately

pressing

the

EQUALIZER

MODE

switch

ON

and

DEFEAT

positions.

Equalizing

red

play,

etc.

EQUALIZER

MODE

—

ON

TAPE

>

OFF

—>

Unequalized

signal

=

=

Equalized

signal

Amplifier

or

receiver

Y

INPUT

‘OUTPUT

|

l

Lili

HH

fo

cm

am

Bin

=

um

om

um

EQ-500U

Equalizing

a

playback

from

tape

deck

TAPE

—

ON.

|

em

Unequalized

signal

EQUALIZER

MODE

—

ON

=

=

=

>

Equalized

signal

Amplifier

or

receiver

Gn

iE

m,

OUTPUT

a

@

ony

oe

ot

EQ-500U

E

RECORDING

AN

EQUALIZED

PROGRAM

SOURCE

An

equalized

program

source

can

be

recorded

on

a

tape

deck

connected

to

the

TAPE

REC

a

of

the

this

unit.

1.

Press

the

POWER

switch.

2.

Press

the

left

EQUALIZER

MODE

switch

to

ON.

3.

Turn

the

TAPE

monitor

switch

to

OFF.

4.

Operate

the

amplifier

or

receiver

and

select

the

program

source

to

be

recorded.

5.

Operate

the

GRAPHIC

EQUALIZER

controls

to

obtain

the

optimum

equalization

of

the

signal.

6.

Set

the

EQUALIZER

MODE

switch

to

REC.

*

To

record

without

equalization,

set

the

EQUALIZER

MODE

switch

to

OFF.

7.

Adjust

the

recording

level

on

the

tape

deck

and

then

begin

recording.

EQ-500U

Recording

an

Equalized

Program

Source

EQUALIZER

MODE

—

ON,

REC

—-

Unequalized

signal

TAPE

—

OFF

=

—

>

Equalized

signal

Amplifier

or

receiver

EQ-500U

Tape

Monitoring

If

you

are

using

a

3-head

tape

deck,

it

will

be

possible

to

monitor

the

result

of

an

equalized

recording

in

real

time.

Set the

tape

deck’s

monitor

selector

to

Tape,

and

the

TAPE

monitor

switch

of

ns

unit

to

ON.

EQUALIZER

MODE

—

~

ON,

REC

TAPE

—

ON

=

Unequalized

signal

~-

~

>

Equalized

signal

Amplifier

or

receiver

TAPE

DECK

(3-HEAD

TYPE)

EM

MEASURING

AND

ENHANCING

THE

_

CHARACTERISTICS

OF

A

SOUND

_

ENVIRONMENT

|

Every

room

has

its

own,

unique

acoustic

response

characteristics,

and

your

listening

environment

does

influence

the

sound

you

are

hearing.

This

unit

lets

you

boost

or

cut

the

output

level

of

your

music

signal

at

different

points

of

the

frequency

spectrum,

before

it

reaches

your

speakers,

in

anticipation

of

what

the

room

is

going

to

do

it,

so

the

effect

of

room

acoustics

on

the

output

signal

will

be

effectively

negaied:

How

to

Measure

the

Acoustic

Characteristics

of

the

Listening

Room:

1.

Connect

the

microphone

Supplied

as

an

accessory.

Microphone

placement

is

crucial

to

proper

equalization.

The

microphone

position

©

should

correspond

as

closely

as

possible

to

where

your

ears

will

be

when,

listening.

Height

of

the

microphone

i

is

thus

also

a

factor.

AR:

Speaker

(L)

Speaker

(R)

&

|s®

Microphone

(Place

at

listening

point)

ae

rn

a

Sie

BE:

.

PINK

NOISE

— —

ON

Meter

selector

switch

—

ON

EQUALIZER

MODE

—

~ON