Bose 901 Series II Owner's guide - Page 11

Additionally,

the

dispersion

can

be

adjusted

by

rotating

the

speakers.

For

instance,

if

you

wish

more

sound

to

come

from

the

left

side

of

one

of

the

speakers,

rotate

the

rear

of

the

speaker

(the

veel

to

the

left.

This

technique

can

also

be

used

to

direct

sound

away

from

an

obstacle

(tor

example,

a

piece

of

furniture)

or

an

opening

into

an

adjacent

room.

(See

Fig.

7.1

The

901s

also

can

be

hung

from

the

ceiling.

As

well

as

being

an

effective

and

interesting

decorating

approach,

this

is

a

useful

method

of

installation

where

speaker

placement

might

be

difficult

due

to

furniture,

location

of

doorways,

and/or

small

children.

The

hardware

is

readily

available

at

most

stores

carrying

decorative

lighting

accessories.

We

recommend

using

a

three

or

four

point

suspension,

with

three

or

tour

pieces

of

decorative

chain

or

other

strong

material.

These

are

attached

to

the

bottom

of

the

901

cabinet

via

decorative

hooks

or

eyelets

screwed

into

the

cabinet.

Keep

in

mind

that

each

901

weighs

33

pounds;

therefore,

use

hardware

strong

enough

to

support

this

weight.

The

901

speaker

should

be

placed

no

closer

than

18

inches

from

the

ceiling.

If

you

prefer

to

suspend

the

speakers

far

above

the

listening

area

in

a

high

ceiling

room,

the

sound

can

be

directed

downward

by

angling

the

rear

of

the

speaker

down.

The

sound

will

then

be

directed

downward

after

it

is

reflected

off

the

rear

wall.

The

speaker

can

be

tilted

in

this

manner

by

adjusting

the

length

of

the

rear

chain(s).

B.

ADJUSTING

THE

EQUALIZER

CONTROLS

901

ACTIVE

EQUALIZER

•

rm.!

COMM.

10.0*

10

•

lliGn

*PLO

•

M0MITOPI

CONT01.1*

0(CREASC

w

FIG.

8

BELOW

40

Another

way

of

altering

the

performance

of

the

901

system

is

to

adjust

the

Equalizer

controls.

The

first

Equalizer

control

is

labeled

BELOW

40.

This

control

causes

a

uniform

reduction

in

bass

response

of

approximately

8

dB

below

40

Hz.

If

distortion

occurs

when

you

are

playing

loud

musical

material

with

a

great

deal

of

deep

bass

content,

move

this

switch

from

the

dotted

position

to

the

CONTOUR

position.

This

will

allow

you

to

play

the

system

louder,

especially

with

low

-powered

amplifiers

or

receivers.

This

control

is

effective

also

in

reducing

"rumble"

from

older

turntables

or

recordings.

11

Bose 901 Series II Owner's guide - Page 11

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