Bose 901 Series II Owner's guide - Page 4

The

following

guidelines

should

be

followed

in

placing

the

speakers

relative

to

other

surfaces

in

the

room.

The

basic

idea

is

to

provide

space

around

the

speakers

to

allow

sound

waves

coming

from

the

rear

of

the

speaker

to

properly

disperse.

1.

The

speakers

should

be

placed

at

least

18

inches

from

the

floor.

2.

If

you

are

hanging

the

speakers

from

the

ceiling,

they

should

be

positioned

no

closer

than

18

inches

from

the

ceiling.

DO

NOT

place

your

speakers

exactly

half

-way

between

the

floor

and

the

ceiling.

(See

Fig.

1.)

3.

The

speakers

should

be

at

least

18

inches

from

the

side

walls

or

from

openings

into

adjacent

rooms.

4.

The

speakers

should

be

at

least

18

inches

from

nearby

massive

objects

such

as

bookcases,

cabinets,

or

other

large

pieces

of

furniture.

5.

The

separation

between

the

speakers

should

be

between

4

and

15

feet.

(Best

results

will

be

obtained

with

a

separation

of

6

to

12

feet.)

6.

In

general,

you

should

use

common

sense

and

be

sure

to

select

an

arrangement

which

does

not

appear

to

block

the

radiation

and

reflection

of

the

sound

into

the

room.

The

901s

can

be

placed

on

pedestals

or

tables,

on

top

of

cabineti,

or

on

shelves,

as

long

as

the

preceding

guidelines

are

followed.

7.

If

the

speakers

are

in

a

room

with

a

color

television,

DO

NOT

place

the

speakers

closer

than

3

feet

to

the

television.

All

loudspeakers

are

equipped

with

powerful

magnets

which

may

disturb

the

delicate

adjust-

ments

of

your

color

TV.

B.

CONNECTING

THE

SPEAKERS

1.

SELECTING

THE

SPEAKER

WIRE

If

the

wire

chosen

for

connecting

the

speakers

to

your

amplifier

has

too

much

resistance,

audible

colora.

Lion

of

the

sound

and

loss

of

power

can

result.

The

table

below

summarizes

the

permissible

wire

lengths

for

18,

16,

and

14

gauge

two

-conductor

copper

wire

for

one

or

two

pairs

of

BOSE

901

speaker

system(s).

Copper

zipcord

wire

is

readily

available

at

most

electrical

and

hardware

stores.

This

wire

usually

has

a

ribbed

line

running

along

one

of

the

two

conductors

so

that

the

conductor

can

be

identified

at

each

end

for

obtaining

the

proper

phasing

of

your

BOSE

901

speakers.

TABLE

1

-

WIRE

LENGTHS

FOR

EACH

SPEAKER

Type

of

Speaker

Hookup

Wire

One

Pair

of

901s

Two

Pairs

of

901s

18

gauge

zipcord

(or

two

-conductor

wire)

33

feet

14

feet

16

gauge

two

-conductor

wire

54

feet

23

feet

14

gauge

two

-conductor

wire

86

feet

36

feet

2.

PHASING

YOUR

901

SPEAKER

It

is

important

that

the

connections

to

the

speakers

and

the

receiver

or

amplifier

be

the

same

for

both

channels

so

chat

the

two

speakers

are

in

phase

with

each

other.

The

two

terminals

on,

the

bottom

of

the

901

are

marked

"8

OHMS"

and

"COM.

-

•

4

Bose 901 Series II Owner's guide - Page 4

Table, Lengths, Speaker

Page 4 highlights