Niles 057.5 User manual

INSTALLATION

GUIDE

FOR

USE

IN

DISTRIBUTED

AUDIO

OR

HOME

THEATER

SYSTEMS

INDOOR/OUTDOOR

WEATHERPROOF

LOUDSPEAKERS

057.5 056.5 055.5

CONGRATULATIONS!

Thank

you

for

choosing

Niles

OS

Indoor/Outdoor

Loudspeakers.

With

proper

installation

and

operation,

you'll

enjoy

years

of

trouble-free

use.

Niles

manufactures

the

industry's

most

complete

line

of

custom

installation

components

and

accessories

for

audio/video

systems.

To

see

the

complete

Niles

product

assortment,

visit

us

on

the

Internet

at:

www.nilesaudio.com

TABLE

OF

CONTENTS

Introduction

1

Features

and

Benefits

2

Parts

Guide

4

Installation

Considerations

6

Painting

the

Loudspeaker

11

Installation

14

Operation

17

Specifications

18

Notes

19

Warranty

20

Warranty

Registration

Card

21

• • • • •

INTRODUCTION

Niles

once

again

raises

the

bar.

With

our

first

OS

Indoor/Outdoor

models,

we

revealed

a

radical

new

understanding

of

loudspeaker

capabilities.

Niles

original

OS

Indoor/Outdoor

Loudspeakers

are

constantly

praised

for

their

ability

to

deliver

exemplary

reliability

and

outstanding

sound

quality.

These

attributes

have

made

Niles

OS

Indoor/Outdoor

Loudspeakers

the

bestselling

loudspeakers

in

their

class.

The

goal

of

our

new

OS

Indoor/Outdoor

line-up

is

to

raise

this

bar

with

refined

appearance

and

superior

sonic

performance,

once

again

establishing

a

benchmark

by

which

all

others

are

judged.

The

new

Niles

OS

Indoor/Outdoor

Loudspeakers

owe

much

of

their

performance

and

sound

quality

advantage

to

design

elements

pioneered

in

the

award-winning

Niles

DS

Directed

Soundfield™

Loudspeakers.

Their

engineering

advances

come

from

our

integrated

approach

to

driver

and

cabinet

design.

By

integrating

the

woofer

basket

into

the

baffle

of

the

cabinet,

we

are

able

to

increase

the

woofer

cone-area

to

cabinet-width

ratio,

thus

enabling

OS

Indoor/Outdoor

Loudspeakers

to

provide

levels

of

bass

performance

that

substantially

exceed

their

physical

size.

Deeper

and

more

powerful

bass

isn't

the

only

refinement

in

the

new

OS

Indoor/Outdoor

line-up.

A

new

and

modern

style

enables

OS

Indoor/Outdoor

Loudspeakers

to

blend

seamlessly

with

architectural

elements,

both

indoors

and

out.

After

the

installation

is

complete,

you

will

be

astonished

by

the

experience

of

hearing

such

clean

and

powerful

sound

coming

from

such

elegant-appearing

loudspeakers.

NILES

AUDIO

CORPORATION

-

1-800-BUY-HIFI

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305-238-4373

----------

1

2

FEATURES

AND

BENEFITS

LIMITED LIFETIME

WARRANTY

We

engineer

bulletproof

reliability

into

all

OS

loudspeakers

and

back

them

up

with

our

industry-

leading

Limited

Lifetime

Warranty

INTEGRATED WOOFER/BAFFLE ASSEMBLY

Increases

the

woofer

cone-area

to

cabinet

-width

ratio

for

enhanced

bass

output

CARBON-WEAVE POLYPROPYLENE

WOOFER

CONE

Reduces

breakup

and

lowers

distortion

BUTYL-RUBBER

WOOFER

CONE

SURROUND

Damps

resonance

and

provides

exceptional

durability

DISPERSION STABILIZER

Distributes

midrange

tones

for

clear

off

-axis

sound

TRI-LAMINATE TETERON

DOME

TWEETER

One-inch

fluid-cooled

tweeter

provides

ultra-wide

dispersion

for

clear,

detailed,

and

extended

high-

frequencies

WEATHERPROOF

ENGINEERING

Enables

OS

loudspeakers

to

handle

extreme

hot,

cold,

and

moist

environments,

exceeding

the

military's

strict

anti-corrosion

specification

MIL

-STD-883D

ADVANCED MATERIAL SCIENCE

Elevates

appearance

and

longevity

of

the

cabinet

and

grille,

plus

enhances

the

performance

of

the

woofers,

tweeters,

and

crossovers

ARCHITECTURALLY-FRIENDLY DESIGN

Delivers

stellar

acoustical

performance,

yet

tucks

discreetly

away

into

corners

and

under

eaves

• • • • •

LOW-DIFFRACTION

GRILLE

AND

FRONT

BAFFLE

Ensures

that

the

sound

waves

emanating

from

the

woofer

and

tweeter

are

not

reflected

by

the

surrounding

parts

of

the

loudspeaker

for

precise

imaging

and

acoustical

accuracy

RIGID, ACOUSTICALLY-INERT CABINET

Prevents

transmission

of

unwanted

vibrations

for

clean

and

dynamic

bass

response

ALL-WEATHER VERSATILITY

Reduces

installation

limitations

to

provide

great

sound

from

the

beaches

of

Miami

to

the

harsh

winters

of

Minneapolis

HOME

THEATER APPLICABILITY

Enables

OS

loudspeakers

to

be

used

as

left,

center,

right,

or

surround

loudspeakers

in

home

theater

systems

INTEGRATED

MOUNTING

BRACKET

AND

SHELF

STAND

Provide

a

variety

of

secure,

quick

and

easy

mounting

solutions

TAPERED

SHAPE

Facilitates

mounting

in

corners

and

under

eaves

INVERTED GOLD-PLATED

5-WAY

BINDING

POSTS

Repel

moisture

and

ensure

positive

connections

in

virtually

any

conditions

over

long

periods

of

time

NILES

AUDIO

CORPORATION

-

1-800-BUY-HIFI

-

305-238-4373

----------

3

PARTS GUIDE

Figure 1.

OS

.5

Series

Parts

Guide

a.

Mounting

Bracket

b.

Nail

Hole

c.

Wire

Hole

d.

Screw

Hole

e.

Bracket

Knob

f.

Grille

g.

Cabinet

h.

Shelf

Stand

4

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• • • • • • • • • •

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:::::::::::::::::::

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.••...•

~~

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~

y

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~

~ ~

~

~~ ~~

~~::::::

v

•.

Figure

2.

OS

.5

Series

Parts

Guide

(continued)

i.

Binding

Posts

j.

Threaded

Insert

(1/4

..

-20

Thread

size)

NOTE:

Bracket

and

Shelf

Stand

are

used

depending

upon

installation

requirements.

See

INSTALLATION

on

page

14.

NILES

AUDIO

CORPORATION

-

1-800-BUY-HIFI

-

305-238-4373

----------

5

6

INSTALLATION CONSIDERATIONS

TOOLS

AND

MATERIALS REQUIRED

•

Electric

drill

with

1/4-

and

1/2-inch

drill

bits,

and

a

1-inch

flat drill bit

for

drilling

through

studs)

•

Three

screws

or

bolts

suitable

for

the

mounting

surface

•

The

proper

screwdriver

for

the

mounting

hardware

•

Safety

cable

(optional)

•

Cable

ties

•

Wire

stripper

•

Pencil

•

Level

•

Rubber

gloves

and

protective

eye

wear

WIRING

The

OS

loudspeakers

connect

to

your

receiver

or

amplifier

using

2-conductor

loudspeaker

wire

(see

Figure 3

on

the

For

most

applications,

we

recommend

using

16-

or

18-gauge

wire.

For

wiring

runs

longer

than

80

feet

(24.38

meters),

we

recommend

14-gauge

wire.

The

binding

posts

on

OS

loudspeakers

accommodate

up

to

12-gauge

wire

directly.

Larger

sizes

can

be

accommodated

using

spade,

banana,

or

connectors.

When

you

run

wire

inside

walls,

outdoors

or

in

marine

installations,

special

jacketing

or

conduit

is

required

for

a

trouble-free

installation

and

conformation

to

the

local

and

national

building

codes.

If

you

are

not

sure

of

the

correct

wire

jacket

or

type

of

conduit

to

use,

consult

a

professional

audio/

video

installer,

building

contractor,

or

the

local

building

and

inspection

department.

INCORPORATING A VOLUME CONTROL

It's

possible

to

control

the

volume

of

the

sound

at

the

loudspeaker

location.

Plan

to

wire

the

system

so

that

each

pair

of

loudspeakers

has

its

own

volume

control.

Niles

makes

a

wide

range

of

indoor

and

outdoor

volume

controls

with

and

without

muting

capabilities.

Consult

your

local

Niles

dealer

for

more

information.

Volume

controls

are

connected

in

line

with

the

loudspeaker,

so

you

must

connect

the

wire

from

the

amplifier

to

the

volume

control

and

then

from

the

volume

control

to

the

loudspeaker

(see

Figure 4

on

the

• • • • •

. . . . .

( )

•

~

ij

~

Figure

3.

Wiring

directly

from

a

receiver

or

amplifier

Figure

4.

Incorporating

a

volume

control

RECOMMENDED AMPLIFIER

POWER

For

optimum

performance,

we

recommend

amplifiers

with

the

following

power

ratings:

•

For

the

OS

5.5

loudspeaker,

5

to

100

W

per

channel

•

For

the

OS

6.5

loudspeaker,

5

to

125

W

per

channel

•

For

the

OS

7.5

loudspeaker,

5

to

150

W

per

channel

Ironically,

most

loudspeakers

are

not

damaged

by

large

amplifiers

but

by

small

amplifiers.

If

you

are

playing

at

high

volume,

a

small

amplifier

will

run

out

of

power

very

quickly.

When

an

amplifier

runs

out

of

power

it

creates

damaging

"clipping"

distortion.

A

large

amplifier

will

play

at

the

same

volume

without

distorting.

See

OPERATION

on

page

17

for

more

information

about

clipping

distortion.

PLACING LOUDSPEAKERS FOR

THE

BEST

SOUND

QUALITY

An

OS

loudspeaker's

dispersion

pattern

is

very

broad.

This

allows

good

sound

quality

over

an

extremely

large

listening

area.

However,

if

a

single

pair

is

positioned

to

provide

coverage

of

a

very

large

room

or

patio,

you

will

have

"hot

spots"

of

loud

sound

when

you

are

near

the

loudspeakers.

The

best

way

to

avoid

hot

spots

for

a

large

space

is

to

use

several

pairs

of

loudspeakers

evenly

spaced

throughout

the

room.

A

good

rule

of

thumb

is

to

install

a

pair

of

loudspeakers

for

every

200

to

400

square

feet

(18.58

to

37.16

square

meters)

of

listening

area.

Your

local

Niles

dealer

is

a

good

source

for

advice

on

loudspeaker

placement

for

your

particular

installation.

(CONTINUED

ON

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305-238-4373

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7

8

PLACING

LOUDSPEAKERS

FOR

THE

BEST

SOUND QUALITY

(CONTINUED)

When

using

more

than

one

pair,

it

is

usually

best

to

alternate

a

left

channel

and

then

a

right

channel,

so

that

you

have

the

best

stereo

coverage

possible.

The

position

of

the

loudspeakers

and

their

surroundings

play

a

very

important

role

in

how

a

stereo

image

is

created.

You

should

experiment

to

find

the

very

best

position

for

your

loudspeakers.

Here

are

some

guidelines

to

make

the

process

quick

and

easy.

i

Speaker

@

Placement

Zone

1

G

10'

Speater

@

Placement

Zone

1

Figure

5.

Illustration

depicts

the

optimum

placement

zone

for

a

listening

distance

of

1

0

feet

(3.04

meters).

5'

1

0'

Make

sure

you

are

not

blocking

or

reflecting

the

sound

off

of

furniture

or

other

objects.

You

should

have

a

direct

line

of

sight

with

the

front

of

the

loudspeaker.

To

determine

the

best

position,

measure

the

distance

between

the

ideal

listening

position

and

the

wall

you

plan

to

mount

the

loudspeakers

on.

Try

to

place

the

loudspeakers

so

that

they

are

at

least

one-half

the

listening

distance

apart

(this

maintains

a

large,

pleasant

stereo

"image")

and

less

than

the

entire

listening

distance

(this

avoids

a

"hole-in-the-middle"

effect).

For

example;

if

you

are

ten

feet

back

from

the

wall,

the

loudspeakers

should

be

between

5

and

10

feet

(1.5

and

3.04

meters)

apart

(see

Figure

5).

If

possible,

mount

the

loudspeakers

between

8

and

12

feet

(2.43

and

3.65

meters)

high.

The

less

the

downward

angle

of

the

loudspeaker,

the

further

the

sound

will

carry.

If

the

sound

is

carrying

into

areas

where

you

do

not

want

sound,

try

pointing

the

loudspeakers

more

downward;

this

will

reduce

the

amount

of

sound

further

away

from

the

loudspeaker.

You

can

control

the

loudspeaker's

bass

output

by

placement.

This

is

called

the

boundary

effect.

You

will

get

more

bass

response

by

mounting

the

loudspeaker

directly

to

a

wall

or

other

flat

surface

(any

boundary

close

to

the

loudspeaker

will

reinforce

the

bass

frequencies).

You

can

increase

the

bass

output

even

more

by

mounting

the

loudspeaker

in

a

corner

or

under

an

eave

(see

Figure 6)

This

type

of

placement

gives

the

loudspeaker

two

boundaries,

thus

reinforcing

the

bass

sounds

even

more.

Of

course,

if

you

wish

to

hear

less

bass,

try

moving

the

loudspeaker

away

from

the

boundary

(see

Figure

7).

Figure

6.

Placement

for

more

bass

output

MOUNTING

METHODS

Figure

7.

Placement

for

less

bass

output

The

OS

loudspeakers

can

be

mounted

either

horizontally

or

vertically.

The

bracket

knobs

will

keep

the

loudspeaker

angled

correctly

in

any

position

once

they

are

tightened.

You

can

choose

from

three

mounting

methods

to

attach

the

loudspeaker

to

the

wall,

ceiling,

or

other

mounting

surface.

1.

If

the

loudspeaker

is

never

going

to

be

exposed

to

sudden

accidental

impacts,

wind,

waves,

or

earthquakes,

you

can

simply

hang

it

on

anail

using

the

nail

hole(s)

on

the

bracket

(see

Figure 8

on

the

2.

The

safest

and

most

secure

way

to

mount

the

loudspeaker

is

by

screwing

it

to

the

mounting

surface

using

your

own

hardware

(suitable

for

the

surface

you

are

mounting

to)

and

the

bracket

supplied

with

the

loudspeaker

(see

Figure

8).

3.

There

is

a

threaded

brass

insert

(1/4"-

20)

on

the

back

of

the

OS

loudspeakers

for

attaching

a

custom

bracket

(see

Figure

8).

This

allows

you

to

position

the

loudspeaker

at

unusual

angles

or

varying

distances

from

the

mounting

surface.

(CONTINUED

ON

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CORPORATION

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1-800-BUY-HIFI

-

305-238-4373

----------

9

MOUNTING

METHODS (CONTINUED)

Qmmmnm-

Nail

Mounting

Screw

Mounting

Custom

Bracket

Mounting

Figure

8.

The

OS

loudspeakers

can

be

mounted

three

ways

SAFETY

FIRST!

Be

careful

to

use

hardware

that

is

designed

for

the

surface

you

are

mounting

to.

The

OS

5.5

loudspeaker

with

the

bracket

weighs

6

pounds

(2.

72

Kg).

The

OS

6.5

loudspeaker

with

the

bracket

weighs

9

pounds

(4.08

Kg).

The

OS

7.5

loudspeaker

with

the

bracket

weighs

11

pounds

(4.9

Kg).

We

recommend

using

attachment

methods

capable

of

supporting

ten

times

the

weight

of

the

loudspeaker

and

bracket.

Some

local

building

codes

require

the

use

of

an

additional

safety

cable

to

mount

loudspeakers

on

a

wall.

If

so,

the

1/4

..

-20

threaded

insert

on

the

rear

of

the

enclosure

can

be

utilized

for

securing

the

safety

cable

to

the

enclosure.

Construction

of

the

safety

cable

and

attachment

of

the

cable

to

the

wall

need

to

meet

the

local

building

codes.

If

you

are

not

sure

of

a

safe

way

to

mount

the

loudspeakers

or

are

unsure

of

your

local

building

codes,

consult

a

professional

installer

or

a

building

contractor

for

the

proper

installation

techniques

and

requirements.

You

will

maximize

the

useful

life

of

the

loudspeaker

by

placing

the

loudspeaker

so

that

it

receives

less

exposure

to

the

elements.

Look

for

the

best

overall

compromise

between

sound

quality,

convenience,

and

exposure.

Do

not

compromise

safety.

10---------------------------------

• • • • •

PAINTING

THE

LOUDSPEAKER

The

enclosure,

the

brackets,

and

the

grilles

of

the

loudspeaker

can

all

be

painted

to

match

the

surroundings.

Because

we

want

you

to

preserve

the

acoustic

qualities

of

the

grille,

please

paint

the

grille

according

to

the

grille

painting

instructions.

Make

sure

you

pick

a

paint

that

is

appropriate

for

the

mounting

location.

There

are

interior

and

exterior

paint

types,

and

even

paint

for

marine

uses.

If

you

are

not

sure

what

paint

to

use,

consult

a

paint

store

professional

or

a

painter.

TOOLS REQUIRED

•

Spray

can

ofprimerpaint

•

The

correct

paint

for

the

environment/use

(oil-

or

water-based

paint

is

fine)

•

Paint

brush

or

applicator

(if

the

paint

is

not

in

a

spray

can)

•

Awl

(for

removing

the

grille)

•

Masking

tape

•

Two

paint

masks

(supplied)

• A

damp

cloth

and

a

dry

cloth

PREPARING

TO

PAINT

1.

Separate

the

parts

of

the

loudspeaker.

You

should

remove

the

brackets

and

the

bracket

knobs.

Remove

the

grille

by

hooking

it

with

the

tip

of

an

awl

and

pulling

it

away

from

the

cabinet

(see

Figure 9

on

the

2.

Wipe

off

the

sides

of

the

cabinet,

the

bracket,

bracket

knobs,

and

grille

with

a

damp

cloth.

Do

not

touch

or

rub

the

loudspeakers

on

the

front

baffle.

Make

sure

everything

is

dry

before

masking.

3.

Mask

off

the

binding

posts

and

the

brass

threaded

inserts

on

the

back

panel

with

masking

tape.

(CONTINUED

ON

NILES

AUDIO

CORPORATION

-1-800-BUY-HIFI-

305-238-4373----------11

PREPARING

TO

PAINT

(CONTINUED)

.

·.·.

... ..

.......

...

.. .

.

...

.

....

.

........

.......

.

...

.....

......

.

·:·:·:·:·:·:·:·:·:·:·:·:·:

.........

..

.

..

.....

..

....

.....

..

.....

...

...........

...

....

.....

.

..

.....

...

....

.

..

.

....

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

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

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

........

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

...

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

......

..

.

.......

......

.

..

.......

...........

...

.

...

.....

........

......

...........

.

....

...

..

.......

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

....

...

........

.

.....

..

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

....

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

......

.......

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

....

Figure

9.

Removing

the

grille

using

an

awl

4.

Mask

off

the

threaded

inserts

on

the

top

and

bottom

with

masking

tape.

5.

Protect

the

front

of

the

loudspeakers

by

inserting

the

supplied

paint

masks

in

place

of

the

grilles.

PAINTING

THE

CABINET,

BRACKET

KNOBS,

AND

BRACKET

1.

Apply

two

thin

coats

ofa

sandable

spray

primer

to

the

cabinet

and

knobs.

The

bracket

doesn't

require

a

coat

of

primer.

2.

Allow

the

primer

to

dry

completely.

3.

Apply

the

finish

color.

4.

Allow

the

paint

to

dry

completely.

5.

Carefully

remove

the

masking

material.

6.

Do

not

reattach

the

loudspeaker

to

the

bracket

until

the

bracket

is

mounted.

Try

to

keep

all

handling

of

the

freshly-painted

parts

to

a

minimum.

12---------------------------------

• • • • •

PAINTING

THE

GRILLE

The

grille

is

important

to

the

sound

of

the

loudspeaker.

Do

not

fill

the

holes

of

the

grille

with

paint.

The

grille

is

constructed

of

aluminum

with

a

perfectly-even

powder

coat

overall.

This

powder

coat

is

an

ideal

primer.

If

you

are

using

a

spray

paint,

use

two

thin

coats

without

any

primer.

If

you

are

using

a

compressor

and

a

spray

gun,

use

the

finest,

most

diffuse

setting.

Practice

on

paper

if

you

are

not

experienced

in

painting

with

spray

paint.

If

you

are

using

an

applicator

or

brush

and

a

can

of

paint,

thin

the

paint

first.

Thick

paint

will

tend

to

clog

the

grille

holes.

To

ensure

a

uniform

appearance,

paint

the

front

and

back

of

the

grille.

REPLACING

THE

GRILLE

After

the

grille

dries,

carefully

fit

the

grille

into

its

recess

so

that

it

is

barely

in

place.

Starting

with

one

corner,

go

around

the

loudspeaker,

pushing

in

the

grille

a

little

bit

each

time,

and

making

sure

not

to

bend

the

grille

out

of

shape.

You

will

feel

a

positive

"snap"

when

it

is

in

place.

NILES

AUDIO

CORPORATION

-

1-800-BUY-HIFI

-

305-238-4373

----------

13

INSTALLATION

MOUNTING

THE

BRACKET

(IF

AnACHING

THE

LOUDSPEAKER TO A WALL, CEILING, BEAM,

OR

OTHER SOLID

STRUCTURE)

1.

Loosen

the

bracket

knobs

and

remove

the

bracket

from

the

loudspeaker.

2.

Hold

the

bracket

up

to

the

mounting

surface.

The

loudspeaker

can

be

mounted

either

horizontally

or

vertically.

Hold

the

bracket

so

that

the

loudspeaker

wire

fits

through

the

large,

circular

wire

hole

in

the

center

of

the

bracket.

Align

the

bracket

so

it

is

square

with

the

surroundings

(use

a

level

for

accuracy).

3.

Mark

the

locations

of

the

three

oval-shaped

screw

holes

(see

Figure l

0).

Be

sure

to

use

allof

the

holes.

Figure 1

0.

Mounting

the

bracket

4.

Drillpilot

holes

into

the

mounting

surface.

5.

Pull

the

loudspeaker

wire

through

the

wire

hole

in

the

center

of

the

mounting

bracket.

Align

the

bracket

so

that

the

holes

all

line

up.

6.

Use

your

hardware

to

attach

the

bracket

to

the

mounting

surface.

14----------------------------------

• • • • •

AnACHING

THE

FOOT

{IF

USING

THE

LOUDSPEAKER

IN

FREE-STANDING MODE)

1.

Loosen

the

bracket

knobs

and

remove

the

bracket

from

the

loudspeaker.

2.

Tighten

the

top

knob

so

it

does

not

vibrate.

3.

Remove

the

bottom

knob

by

unscrewing

it

from

the

cabinet.

4.

Place

the

supplied

shelf

stand

on

the

loudspeaker

with

the

two

shorter

feet

towards

the

front

of

the

loudspeaker

(see

Figure JJ

).

Make

sure

the

ridges

on

the

shelf

stand

engage

the

ridges

on

the

cabinet.

5.

Tighten

the

bottom

knob

so

that

the

shelf

stand

does

not

move.

Figure

11

•

Mounting

the

shelf

stand

on

the

OS

loudspeaker

CONNECTING

THE

LOUDSPEAKER

Bottom

of

Speaker

1.

Separate

the

two

conductors

of

the

loudspeaker

wire

so

that

at

least

2

inches

of

each

conductor

are

free.

2.

Strip

away

112

inch

of

insulation

from

the

end

of

each

conductor

of

the

loudspeaker

wire.

3.

If

you

have

any

connectors

(gold

pins

or

bananas)

which

you

prefer

to

use,

affix

them

to

the

stripped

wire

ends

now.

Only

gold-plated

connectors

should

be

used

outside,

as

they

will

not

tarnish

or

corrode.

(CONTINUED

ON

NILES

AUDIO

CORPORATION

-

1-800-BUY-HIFI

-

305-238-4373

----------1

5

CONNECTING

THE

LOUDSPEAKER

(CONTINUED}

4.

If

using

the

bracket

to

attach

to

a

solid

surface,

slide

the

loudspeaker

onto

the

bracket.

Do

not

tighten

the

knobs

completely.

Angle

the

loudspeaker

so

that

the

rear

terminals

are

accessible.

If

using

the

shelf

stand,

position

the

loudspeaker

on

the

stand

and

place

it

on

the

shelf

or

table

where

you

want

it.

5.

Connect

one

stripped

wire

end

to

the

black

terminal

and

one

to

the

red

terminal,

using

correct

polarity.

NOTE:

OBSERVE

CORRECT

POLARITY:

POSITIVE(+)

GOES

TO

THE

RED

POST

AND

NEGATIVE

(-)

GOES

TO

THE

BLACK

POST.

IF

YOU

ARE

UNSURE

OF

WIRE

POLARITY,

SEE

CHECKING

LOUDSPEAKER PHASE

BELOW.

6.

If

required,

attach

the

safety

cable

to

the

loudspeaker

enclosure.

See

SAFETY

FIRST

on

page

10

for

details.

7.

Verity

that

the

loudspeakers

are

in-phase,

as

described

in

CHECKING

LOUDSPEAKER PHASE

below.

B.

Angle

the

loudspeaker

for

the

best

sound

possible.

9.

Tighten

the

bracket

knobs

by

hand

only.

NOTE:

DO

NOT

USE

ANY

TOOLS

FOR

TIGHTENING.

DOING

SO

MAY

STRIP

THE

INSERT

THREADS.

10.

Check

that

the

entire

installation

is

safe

and

secure.

CHECKING

LOUDSPEAKER

PHASE

Loudspeaker

wire

has

two

conductors.

On

both

your

loudspeaker

and

amplifier,

one

conductor

is

attached

to

the

negative(-)

terminals,

while

the

other

is

attached

to

the

positive(+)

terminals.

Usually,

the

wire

is

marked

for

your

convenience,

but

the

marking

can

be

done

in

the

following

different

ways:

•

Stripe

on

one

wire

•

Ribbed

area

you

can

feel

on

one

conductor

•

Different

colors

of

metal

wire

on

each

conductor

•

Fabric

strand

or

string

wound

into

one

of

the

conductors

Of

course,

there

are

some

wires

that

appear

completely

identical.

So

be

careful,

or

you

might

make

a

connection

mistake.

If

you

do,

one

loudspeaker

will

be

playing

"out-of-phase"

with

the

other

loudspeaker.

A

pair

of

out

-of

-phase

loudspeakers

works

against

each

other,

and

the

sound

of

the

two

playing

together

will

be

lacking

in

bass

and

sound

"phasey."

If

you

suspect

the

sound

is

not

right,

and

you

cannot

see

any

markings

on

the

wire,

try

this

simple

test:

16-----------------------------------

• • • • •

1.

Stand

halfway

between

the

loudspeakers.

2.

Play

some

music

with

the

amplifier

or

receiver

set

to

Mono.

3.

Listen

to

the

richness

of

the

bass

and

the

loudness

of

the

sound.

4.

Turn

off

the

amplifier

and

reverse

the

connections

on

one

amplifier

channel

only.

5.

Repeat

the

listening

test

with

the

same

volume

control

setting.

When

the

sound

has

a

richer

bass

and

is

slightly

louder,

the

loudspeakers

are

working

together

or

11

in-phase."

OPERATION -

LISTENING

AT

HIGHER VOLUMES

Outdoors

there

are

no

walls

to

reflect

and

contain

the

sound.

It

requires

more

power

to

achieve

a

reasonable

volume

of

sound

outside

than

it

does

indoors.

You

also

frequently

find

yourself

very

far

from

the

loudspeakers.

It

is

possible

to

turn

the

volume

so

high

that

the

amplifier

runs

out

of

power.

This

creates

"clipping"

distortion.

Clipping

distortion

makes

treble

sound

very

harsh

and

unmusical.

When

you

hear

harsh

sounding

treble

from

any

good

loudspeaker

indoors

or

outdoors,

turn

the

volume

down

immediately!

Those

harsh

sounds

are

masking

some

much

more

powerful

ultra-high-frequency

sound

spikes

which

will

quickly

damage

any

fine

loudspeaker.

CLEANING

Clean

the

OS

loudspeakers

with

a

dampened

soft

cloth

or

paper

towel.

If

the

loudspeaker

is

mounted

high

up

on

a

wall

or

ceiling,

use

a

broom

to

gently

brush

it

off.

Hosing

off

the

loudspeaker

is

not

recommended,

as

the

tweeter

is

a

precise

mechanism

which

might

be

damaged

by

a

high-pressure

stream

of

water.

NILES

AUDIO

CORPORATION-

l-800-BUY-HIFI-

305-238-4373----------17

SPECIFICATIONS

OS

7.5Loudspeaker

OS

6.5

Loudspeaker

OS

5.5

Loudspeaker

Driver

Complement

Driver

Complement

Driver

Complement

• 7

11

carbon-weave

• 6

11

carbon-weave

• 5

11

carbon-weave

polypropylene

woofer

polypropylene

woofer

polypropylene

woofer

• 1

11

Teteron

dome

tweeter

• 1

11

Teteron

dome

tweeter

• 1

11

Teteron

dome

tweeter

with

fluid

cooling

with

fluid

cooling

with

fluid

cooling

Recommended

Amplifier

Power

Amplifier

Power

Amplifier

Power

5

to

150

watts

per

channel

5

to

125

watts

per

channel

5

to

1

00

watts

per

channel

Nominal

Impedance

Nominal

Impedance

Nominal

Impedance

8

ohm

8

ohm

8

ohm

Frequency

Response

Frequency

Response

Frequency

Response

60

Hz

to

23

kHz,

+1-

3

dB

70

Hz

to

23

kHz,

+1-

3

dB

95

Hz

to

23

kHz,

+1-

3

dB

Sensitivity

Sensitivity Sensitivity

91

dB

with

2.83

V

pink

noise

90

dB

with

2.83

V

pink

noise

90

dB

with

2.83

V

pink

noise

input,

measured

at

1

meter

input,

measured

at

1

meter

input,

measured

at

1

meter

on

axis

on

axis

on

axis

Wiring

Requirements

Wiring

Requirements

Wiring

Requirements

We

recommend

using

16-

to

We

recommend

using

16-

to

We

recommend

using

16-

to

18-gauge

speaker

wire

for

18-gauge

speaker

wire

for

18-gauge

speaker

wire

for

runs

up

to

80

feet

(24.38

runs

up

to

80

feet

(24.38

runs

up

to

80

feet

(24.38

meters)

and

14-gauge

meters)

and

14-gauge

meters)

and

14-gauge

speaker

wire

for

runs

up

to

speaker

wire

for

runs

up

to

speaker

wire

for

runs

up

to

200

feet

(60.96

meters).

The

200

feet

(60.96

meters).

The

200

feet

(60.96

meters).

The

connectors

will

accommodate

connectors

will

accommodate

connectors

will

accommodate

12-

to

22-gauge

wire.

12-

to

22-gauge

wire.

12-

to

22-gauge

wire.

Dimensions

{loudspeaker

Dimensions

{loudspeaker

Dimensions

{loudspeaker

with

U-Bracket)

with

U-Bracket)

with

U-Bracket)

8-3/16

11

X

13-5/16

11

X

9-3/16

11

7-7/16

11

X

12

11

X

7-3/4

11

6-1/4

11

X

9-7/8

11

X

6-3/4

11

(20.8cm

x

33.8cm

x

23.3cm)

(18.9cm

x

30.5cm

x

19.7cm)

(15.9cm

x

25.1cm

x

17.1cm)

Weight

{loudspeaker

and

Weight

{loudspeaker

and

Weight

{loudspeaker

and

Bracket)

23

lb

per

pair

(1

0.4

kg)

18

lb

per

pair

(8.2

kg)

12

lb

per

pair

(5.4

kg)

18---------------------------------

Niles 057.5 User manual

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