Bose 301 Sonata Manuel utilisateur

Owner's

Manual

MW.

ABUSE

MODEL

301

Direct/Reflecting'

Speaker

System

TABLE

CONTENTS

INĦODUECTION

asica

UNPACKING

INSTRUCTIONS

............................................

;

DESIGN

FEATURES

„ooo

too

;

INSTALLATION

Speaker

Placement

................................................................

Connecting

the

Speakers

...................................................

POWER

REQUIREMENTS.

додано

WIRE

SELECTION

aan

двое

PHASING

iii

FUSING

rei

rea

EKG

С.

Adjustment

the

Direct

Energy

Control

...............

Roam

cca

TECHNICAL

INFORMATION................................-.-....------.

CARE

AND

MAINTENANCE

Ć.................................................

IN-GABE

DIFRIGURTI

asa

FIVE

YEAR

WARRANTY

Zew

№

омо

INTRODUCTION

Thank

you

for

purchasing

the

BOSE

Model

301

Direct/Reflecting®

speaker

system.

Your

Model

301s

are

the

product

many

years

BOSE

research

and

dedication

the

art

bringing

superb

musical

reproduction

into

your

home.

PLEASE

TAKE

TIME

READ

THIS

MANUAL

CAREFULLY.

will

help

you

obtain

the

full

benefits

the

Model

301's

unique

design.

UNPACKING

INSTRUCTIONS

Two

Model

301

speakers,

marked

“Part

1”

and

“Part

2,”

are

packed

single

shipping

carton.

Unpack

both

speakers

care-

fully,

saving

the

carton

and

packing

materials

for

possible

trans-

portation

shipment

later

date.

either

the

speakers

has

visible

damage

when

you

unpack

it,

not

place

the

damaged

speaker(s)

operation.

Repack

the

speaker(s)

the

original

carton

with

the

complete

packing

material

and

notify

your

dealer

immediately.

WARNING

—

NOT

HANDLE

THE

SPEAKERS

THE

FOAM

GRILLE.

GRASP

ONLY

THE

CABINET

WHEN

MOVING

PLACING

THE

SPEAKER.

DESIGN

FEATURES

The

BOSE

Model

301

Direct/Reflecting

loudspeaker

incorporates

several

features

that

make

its

operation

and

placement

different

from

other

loudspeakers.

The

exceptional

performance

the

Model

301,

great

degree,

can

attributed

Asymmetrical

Design,

the

Direct

Energy

Control,

and

Dual

Frequency

Crossover

Network.

ASYMMETRICAL

DESIGN

The

Asymmetrical

Design

the

Model

301

provides

high

proportion

reflected

sound

high

frequencies

and

contributes

the

exceptionally

spacious

stereo-

phonic

reproduction.

provide

balanced

spatial

properties

stereo

reproduction,

the

Model

301

stereo

pair

designed

that

the

speaker

used

the

left-hand

side

the

room

(this

speaker

called

“Part

1”)

mirror

image

the

speaker

the

right-hand

side

(this

speaker

called

“Part

2”).

The

Asymmetrical

Design

and

mirror

image

construction

the

Model

301

are

shown

Diagram

(page

5).

The

tweeters

direct

most

their

energy

toward

the

side

walls

the

room.

The

side

walls

reflect

high

frequency

energy

uniformly

throughout

the

listening

area,

resulting

stereo

image

extending

from

one

wall

the

room

the

other

(Diagram

page6).

The

advantage

this

design

that

minimum

reliance

placed

the

rear

wall

the

room

for

providing

reflections.

This

maximizes

the

flexibility

placement

the

loudspeaker.

DIRECT

ENERGY

CONTROL

This

control,

located

the

top

the

cabinet,

allows

you

select

the

proportion

direct

re-

flected

sound

high

frequencies

produce

the

optimum

spatial

characteristics

for

your

particular

room.

If,

for

example,

the

side

walls

the

room

are

absent,

too

far

away,

covered

absorbing

material,

the

control

can

set

provide

predominantly

direct

sound

high

frequencies.

predominance

direct

sound

results

stereo

localization

sounds

primarily

the

area

between

the

two

speakers.

Sometimes

this

“inti-

mate”

sound

preferred

for

soloists

and

small

groups.

reflecting

side

wall

present,

and

spacious

sound

presentation

desired

(such

for

orchestra),

the

control

can

set

provide

larger

proportion

reflected

sound

high

frequencies.

This

results

sound

that

actually

extends

beyond

the

spacing

the

speakers.

DUAL

FREQUENCY

CROSSOVER

NETWORK

Contrary

tradi-

tional

design

philosophies,

the

crossover

network

the

Model

301

deliberately

overlaps

the

response

the

woofer

and

tweeter

over

octave,

and

adjusts

the

amplitude

and

phase

response

the

woofer

and

tweeter

provide

exactly

complementary

*Any

surface

that

feels

hard,

such

wood,

glass,

wallboard,

plaster

brick,

good

reflector.

soft

surface,

such

acoustic

tile,

drapery,

upholstered

furniture,

will

absorb

sound.

DIRECT

ENERGY

CONTROL

WOOFER

DIAGRAM

ASYMMETRICAL

DESIGN

AND

MIRROR

IMAGE

CONSTRUCTION

THE

MODEL

301

PART

13-3

№

DIAGRAM

PLACEMENT

FOR

NORMAL

SPACING

WITH

REFLECTING

SIDEWALLS

DIAGRAM

PLACEMENT

FOR

WIDE

SPACING

characteristics.

This

Dual

Frequencv

Crossover

permits

both

driv-

ers

operate

throughout

the

crucial

middle

frequencv

range.

Dis-

tributing

the

energv

between

the

two

drivers

eliminates

the

undesirable

''point

source'

effect

conventional

loudspeaker.

This

results

spacious

sound

and

unusual

claritv

and

naturalness

through

the

middle

and

higher

frequencies.

INSTALLATION

The

Model

301

provides

versatilitv

placement

and

adjustment

that

will

produce

excellent

performance

virtually

any

room.

However,

all

loudspeakers

will

sound

better

installed

properly.

The

following

guide-

lines

should

followed

installing

the

Model

301.

Speaker

Placement

For

optimum

performance,

the

Model

301

should

positioned

hori-

zontally

bookshelf,

table,

pedestal.

However,

excellent

per-

formance

can

also

obtained

with

vertical

placement.

HORIZONTAL

PLACEMENT

The

speaker

labeled

“Part

1”

nor-

mally

used

the

left

side

the

room

and

“Part

2”

normally

used

the

right

side

(Diagram

2).

The

speakers

are

best

located

feet

above

the

floor,

with

each

speaker

feet

from

reflecting

side

wall,

and

with

much

free

space

around

the

tweeter

side

the

speaker

possible.

The

following

guidelines

should

followed:

Both

speakers

should

least

inches

above

the

floor.

the

speakers

are

hung

from

the

ceiling

placed

high

bookshelf,

the

space

from

the

ceiling

the

top

the

speaker

should

least

inches.

Placing

the

speaker

exactly

halfway

between

floor

and

ceiling

not

desirable

for

best

bass

response.

The

ideal

separation

between

speakers

should

from

feet,

with

minimum

spacing

feet.

spacing

greater

than

feet

used,

the

alternate

placement

shown

Diagram

should

tried.

This

will

provide

stronger

sound

image

the

space

between

the

two

speakers.

possible,

locate

the

speaker

feet

from

the

side

wall

openings

into

adjacent

rooms

(Diagram

page

6).

Allow

least

feet

space

the

side

the

speaker

where

the

Direct

Energy

Control

and

tweeter

are

located.

This

will

provide

for

the

best

dispersion

high

frequencies

into

the

room.

The

most

accurate

bass

will

obtained

with

the

back

the

speaker

against

wall

moved

out

feet.

Further

spacing

from

the

wall

will

result

some

reduction

middle

bass

response.

This

effect

happens

with

а//

loudspeakers.

VERTICAL

PLACEMENT

Should

you

desire

position

the

speak-

ers

vertically,

the

above

guidelines

should

followed,

with

the

exception

that

No.

will

apply

the

areas

above

each

speaker

rather

than

areas

the

side.

sure

place

the

speakers

that

the

tweeter

top.

with

all

small

speakers,

placement

directly

the

floor

will

accentuate

bass

and

restrict

distribution

high

frequencies.

Note

that

for

vertical

placement,

the

nameplate

can

rotated

and

moved.

Carefully

remove

the

foam

piece

containing

the

name-

plate.

Squeeze

the

small

tab

retaining

the

nameplate.

Reposition

the

nameplate

and

replace

the

tab.

QUADRIPHONIC

OPERATION

АІ

the

above

considerations

are

valid

when

operating

the

BOSE

Model

301

speaker

system

quadriphonic

four-channel

sound

reproduction.

Because

the

flexibility

the

BOSE

Model

301

speaker

system

provides

room

placement,

the

operation

the

speaker

system

four-channel

modes

optimum

for

listening

environments

than

that

conventional

loudspeakers.

This

due

the

fact

that

the

amount

direct

energy

reaching

the

listening

area

can

specifically

adjusted

each

speaker.

Diagram

indicates

the

placement

position

the

BOSE

Model

301

quadriphonic

and

stereo

operation.

your

listening

environment

does

not

allow

the

possibility

placing

speakers

behind

you,

the

Model

301

speakers

can

placed

shown

along

the

side

walls

the

listening

area

with

the

Direct

Energy

Control

set

for

mini-

mum

direct

energy

(see

section

adjustment

the

Direct

Energy

Control).

PART

Ра

FRONT

SPEAKERS

ema

aor

ALTERNATE

PLACEMENT

REAR

SPEAKERS

POPE

(SET

DIRECT

ENERGY

РИНВИ

CONTROL

POSITION

МВ

СЕ

DIAGRAM

QUADRIPHONIC

PLACEMENT

CONVENTIONAL

PLACEMENT

REAR

SPEAKERS

ғ,

PART

RIGHT

CHANNEL

OUTPUT

LEFT

CHANNEL

OUTPUT

DIAGRAM

CONNECTIONS

FOR

MAINTAINING

CORRECT

PHASING

SPEAKERS

Connecting

the

Speakers

POWER

REQUIREMENTS

The

Model

301

designed

powered

the

majority

the

fine

amplifiers

and

receivers

that

are

the

market

today.

Power

requirements

will

vary

substan-

tially

with

room

size,

speaker

placement,

and

type

music

played.

High

quality

sound

requires

less

than

watts

rms

per

channel,

although

amplifiers

rated

watts

rms

per

channel

may

used.

WIRE

SELECTION

the

wires

your

speakers

are

less

than

feet

long,

18-gauge

zipcord

(two-conductor)

wire

recom-

mended.

30-

50-foot

lengths

wire

are

needed,

16-gauge

two-conductor

wire

should

used.

your

dealer

doesn't

provide

you

with

speaker

wire,

can

ob-

tained

most

hardware

stores.

Choosing

the

correct

wire

size

insures

that

the

wire

connecting

your

speakers

doesn't

have

too

much

resistance.

Excessive

re-

sistance

causes

audible

coloration

and

loss

power

with

all

speak-

ers.

PHASING

important

that

the

connections

the

speakers

and

the

receiver

amplifier

the

same

for

both

channels

that

the

two

speakers

are

phase

with

each

other.

Refer

Diagram

you

the

following

steps:

Start

with

the

speaker

marked

“Part

1”.

Place

the

left

side

your

room.

Locate

the

“POS”

and

“COM”

terminals

the

rear

the

speaker.

Using

your

speaker

wire,

which

marked

distinguish

one

conductor

from

the

other

means

color

grooved

ridges,

connect

the

terminal

marked

“COM”

the

back

the

left

speaker

the

terminal

marked

“COM,”

“negative”

(-),

the

left

channel

amplifier

output.”

Connect

the

“POS”

terminal

the

left

speaker

the

terminal

marked

“POS,”

“positive”

(+),

the

left

channel

output

the

amplifier

receiver.

Place

the

speaker

marked

“Part

2”

the

right-hand

side

the

room

and

repeat

the

connection

procedure.

FUSING

When

using

the

Model

301

with

amplifiers

rated

than

watts

rms

per

channel,

with

sinusoidal

other

test

signals,

recommend

that

the

speaker

protected

BUSS

MDL

1%-amp

“slow-blow”

fuse

(or

equivalent)

using

in-line

HDH

fuseholder

(or

equivalent)

wired

series

the

posi-

tive

side

each

speaker

cable.

The

fuse

will

also

provide

pro-

tection

against

speaker

damage

the

event

amplifier

failure.

“When

connecting

your

amplifier,

there

choice

imped-

ances

the

amplifier

output,

use

the

terminal

marked

“8”

“8

ohms.”

two

pairs

Model

301s

are

being

connected

parallel,

the

terminal

marked

“4”

“4

ohms”

the

receiver

amplifier

should

used.

Adjustment

the

Direct

Energy

Control

The

Direct

Energy

Control

has

been

carefully

designed

provide

the

optimum

performance

the

Model

301

under

wide

range

listening

conditions.

This

control

primarily

affects

the

spatial

distri-

bution

high

frequencies

above

kHz.

distances

the

loudspeaker,

the

effect

the

control

high

frequency

energy

very

large,

reaching

kHz.

However,

the

effect

decreases,

becoming

subtle,

with

increasing

distance

from

the

speaker

and

will

less

noticeable

larger

rooms,

where

the

listener

prin-

cipally

the

reverberant

field.

Under

most

listening

conditions,

critical

listeners

will

find

that

the

Direct

Energy

Control

provides

significant

aid

optimizing

the

performance

the

Model

301.

Please

note

that

the

numbers

which

appear

Diagram

are

for

reference

only

and

not

appear

your

speaker

system.

They

are

there

help

you

understand

the

positioning

required

for

optimum

performance

your

listening

environment.

the

diagram,

the

left

speaker,

when

starting

from

the

top

marking,

rotated

clockwise

for

increasingly

high

numbers.

The

right

speaker

rotated

counter-

clockwise

for

the

same

increase

reference

numbers.

The

following

guidelines

should

followed:

POSITIONS

АМО

These

positions

provide

the

maximum

direct

sound

energy

high

frequencies.

For

horizontal

placement

they

are

used

establish

high

frequency

balance

side

reflecting

walls

are

not

present

are

covered

with

sound

absorbing

material.

These

positions

provide

less

stereo

spread

than

higher

numbers

and

will

preferred

some

listeners

for

reproduction

soloists

and

small

ensembles.

Use

positions

and

for

vertical

placement

the

speaker

placed

higher

than

feet.

POSITION

This

the

normal

setting

the

Direct

Energy

Con-

trol.

This

position

used

for

horizontal

placement

when

side

re-

flecting

wall

located

near

the

side

the

speaker,

shown

Diagram

page

Under

this

condition,

most

ofthe

high

frequency

ROTATE

CLOCKWISE

FOR

MAXIMUM

REFLECTED

SOUND

ROTATE

COUNTER

CLOCKWISE

FOR

MAXIMUM

REFLECTED

SOUND

DIAGRAM

POSITIONS

THE

DIRECT

ENERGY

CONTROL

energy

from

the

tweeter

will

reflected

the

side

wall

into

the

center

the

room.

Use

position

for

vertical

placement

the

speaker

placed

lower

than

feet,

within

feet

hard

ceiling.

POSITIONS

AND

These

positions

provide

minimum

direct

sound

energy

high

frequencies

and

are

used

for

horizontal

place-

ment

reflecting

side

wall

present.

Operation

Positions

and

will

provide

very

spacious

stereo

reproduction,

especially

suited

for

large

ensembles

such

orchestra

chorus.

Room

Acoustics

The

sound

quality

loudspeakers

depends

many

environmen-

tal

factors

other

than

speaker

placement,

such

the

size,

shape

and

construction

the

room,

and

the

amount

and

type

furniture,

rugs

and

draperies

present.

lack

bass

response

frequently

may

attributed

walls

thin

panel

construction,

large

openings

(e.g.,

doorways),

excessive

window

glass,

which

allow

low

fre-

quencies

pass

through

rather

than

reflecting

them

into

the

room.

The

overly

bright

sound

acoustically

“live”

rooms

(e.g.,

those

with

uncovered

floors

scatter

rugs,

small

amounts

furniture,

hard

walls)

can

improved

the

addition

rugs

and

heavy

draperies,

which

also

serve

eliminate

echoes

and

standing

waves.

For

acous-

tically

“dead”

rooms

(e.g.,

those

with

wall-to-wall

carpets,

heavily

upholstered

furniture,

large

amounts

draperies),

furnishings

should

arranged

that

speakers

have

unobstructed

sound

transmission

paths

the

listening

areas.

Finally,

since

room

acoustically

perfect,

you

are

encouraged

use

your

amplifier

receiver

tone

controls

adjust

the

sound

for

your

maximum

listening

enjoyment.

TECHNICAL

INFORMATION

SPATIAL

CHARACTERISTICS

Asymmetrical

Design

for

opti-

mum

stereo

reproduction

utilizing

side

wall

reflections.

Direct

Energy

Control

for

adjustment

ratio

direct

reflected

sound

high

frequencies.

SPEAKER

COMPLEMENT

Woofer:

8-inch

high

efficiency

design

optimized

for

operation

moderate

size

ported

en-

closure.

The

high

frequency

response

uniform

over

kHz

for

maximum

utilization

the

Dual

Frequency

Crossover

Network.

Tweeter:

3-inch

high

sensitivity

design.

This

tweeter

designed

for

performance

down

1400

and

has

exceptionally

smooth

and

extended

high

frequency

response.

The

on-axis

frequency

response

rises

high

frequencies

maintain

constant

total

energy.

Crossover

Network:

The

crossover

network

utilizes

Dual

Fre-

quency

design

whereby

the

transition

frequencies

the

woofer

and

tweeter

are

separated

over

one

octave.

The

network

con-

sists

inductor,

two

resistors,

and

high

grade

film

capacitor.

Computer

style

wire-wrap

connections

are

used

for

maximum

reliability.

Crossover

transition

frequencies

are

1400

and

3000

Hz.

MINIMUM

AMPLIFIER

POWER

—

watts

rms

into

ohms

MAXIMUM

AMPLIFIER

POWER

—

watts

rms

into

ohms

(for

reproducing

speech

and

music)

SIZE

—

inches

wide

10%

inches

high

inches

deep.

SHIPPING

WEIGHT

—

Forty

pounds

per

pair.

The

Model

301s

are

packed

one

“Part

1”

(left

speaker)

and

one

“Part

2”

(right

speaker)

per

shipping

carton.

CARE

AND

MAINTENANCE

The

Model

301

has

attractive

walnut

vinyl

veneer

finish

which

may

cleaned

wiping

with

soft

cloth.

The

polyurethane

foam

grille

the

Model

301

requires

virtually

care,

although

may

vacuumed

dusted

necessary.

The

loudspeaker

and

crossover

elements

the

Model

301

are

de-

signed

for

long,

maintenance-free

life.

Used

properly,

the

Model

301

should

provide

you

with

many

years

enjoyment.

CASE

DIFFICULTY

you

suspect

problem

with

one

your

Model

301

speakers,

worth

few

minutes

your

time

determine

whether

the

de-

fect

is in

your

speaker

some

other

portion

your

high

fidelity

system.

ONE

SPEAKER

SOUNDS

DEFECTIVE,

first

disconnect

the

speaker

that

operating

properly

disconnecting

the

wire

from

the

output

terminals

the

rear

the

amplifier.

Next,

disconnect

the

wire

running

the

speaker

which

sounds

de-

fective

and

connect

the

output

terminals

the

amplifier

channel

which

you

are

sure

operating

properly.

the

speaker

now

seems

operating

properly,

the

defect

another

part

your

hi-fi

system.

THE

TROUBLE

APPEARS

BOTH

CHANNELS,

connect

your

Model

301s

another

amplifying

source

high

fidelity

system

that

operating

properly.

the

trouble

longer

apparent,

the

difficulty

not

with

the

speakers.

Autres manuels pour 301 Sonata

Table des matières

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