Niles Audio Cs525 Users Manual DS00245A/CS

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MODELS

CS525

CS650

BLENDING HIGH FIDELITY AND ARCHITECTURE®

INSTALLATION & OPERATION GUIDE

MODELS

CS525

CS650

CONTRACTOR SERIES

®

®

DS00245A/CS 3/8/99 4:13 PM Page 22

Congratulations!

Thank you for choosing a Blueprint Series In-Wall Loudspeaker®from Niles. 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. For a free full line catalog write: Niles, Catalog

Request, P.O. Box 160818, Miami, Florida 33116-0818

TABLE OF CONTENTS

INTRODUCTION 2

FEATURES AND BENEFITS 3

INSTALLATION CONSIDERATIONS 4

SPEAKER PLACEMENT 6

INSTALLATION FUNDAMENTALS 9

INSTALLATION OF SPEAKERS 13

OPERATION 16

SPECIFICATIONS 17

WARRANTY REGISTRATION CARD 19

LIMITED WARRANTY 20

DS00245A/CS 3/8/99 4:13 PM Page 1

Introduction

The CS or

Contractor Series

group of

Blueprint Series In-Wall Loudspeakers®

offers speakers expressly designed for flex-

ibility of use. They function well as prima-

ry speakers in bedrooms, dens or living

rooms; as main or surround speakers in

home theaters; or in large arrays in com-

mercial spaces. The CS525/CS650 offer a

unique combination of adaptability, per-

formance and value which makes them

perfect in a wide variety of applications.

DS00245A/CS 3/8/99 4:13 PM Page 2

Features and Benefits

Hi-Polymer Woofer

The CS525 and CS650 models feature a

unique woofer construction process

called Hi-Polymer Bonding that combines

a waterproof nylon layer with a traditional

pulp-based long throw woofer with a

treated foam rubber surround. Both mod-

els feature custom perforated baskets to

keep construction debris from coming in

contact with the woofer cone.

Polycarbonate Dome Tweeter

The 1” polycarbonate tweeter offers sur-

prisingly wide dispersion characteristics

for great stereo imaging, remarkable clar-

ity, and moisture resistance.

X-Matrix™Reinforced Baffle

The X-Matrix Baffle design uses specially

molded ribs constructed of ABS plastic to

add rigidity to the baffle assembly. The

end result is better clarity and detail.

Absolutely Flush to the Wall Appearance

The unique mounting system of the CS

loudspeakers powerfully clamps the

speaker to the bracket, sandwiching the

wall material between them. Additionally,

the Niles mounting system is carefully

optimized to stiffen the surrounding dry-

wall and prevent it from resonating. You

hear only the music, not the drywall.

Easy Retrofit Installation in your

Existing Home

Designed for ease of installation, the Niles

mounting system makes installations sim-

ple and fast. A supplied template assures

fast and accurate hole cutting. The bracket

slips behind the drywall and the tightening

of the screws sandwich the drywall

between the bracket and speaker. The

grille mounts over the speaker.

Eight Ohm Impedance

The speakers are designed to be placed in

multi-room systems with many pairs of

speakers. The eight ohm impedance is a

very easy electrical load for most ampli-

fiers. This allows many pairs of CS speak-

ers to be wired to a single amplifier using

a Niles speaker selection system.

Low Diffraction, Paintable Aluminum

Grilles

CS speakers utilize rustproof aluminum

grilles. The painted aluminum grille has

hundreds of precisely sized perforations,

creating an acoustically transparent grille.

Infrared Sensor Mount

The speaker baffle has a locator designed

for the Niles MS-1 MicroSensor,™ a

miniature infrared sensor. The MS-1

installs discreetly behind the aluminum

grille and therefore minimizes wall clut-

ter in your home. When you want to

control your equipment, you simply

point your remote control at the speaker

from up to 15 feet away.

Features and Benefits

3

DS00245A/CS 3/8/99 4:13 PM Page 3

Installation Considerations

Recommended Amplifier Power

For satisfactory performance, we recom-

mend an amplifier with a power rating of

five to fifty watts for the CS525 and

CS650. Curiously, most speakers are not

damaged by large amplifiers but by small

amplifiers. If your system is playing loudly,

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 the

section on operating the speakers for more

information about clipping distortion.

Incorporating a Local Volume Control

In a multi-room system there is one indis-

pensible control for true convenience—a

local volume control. It allows you to

adjust the volume of the speakers without

leaving the room.

Plan to wire the system so that each pair

of speakers has its own volume control

built into the wall (think of a volume con-

trol as a dimmer switch for sound).

Niles makes a wide range of high perfor-

mance indoor and outdoor volume con-

trols. They are available in Standard or

Decora®style cover plates (just like your

Figure 1

Bracket

Frame/

SpeakerBaffle

IR Knockout

Grille

DS00245A/CS 3/8/99 4:13 PM Page 4

light switches and dimmers). Volume con-

trols are connected in line with the speak-

er, so you must connect the wire from the

amplifier to the volume control and then

from the volume control to the speaker.

Speaker Wire

Use 2-conductor speaker wire when con-

necting CS speakers to your receiver or

amplifier. For most applications, we rec-

ommend you use 16 or 18 gauge wire.

For wiring runs longer than 80 feet we

recommend 14 gauge wire. The spring

loaded terminals of the CS speakers will

accommodate up to 12 gauge wire

directly. Larger sizes can be accommodat-

ed via pin connectors.

When you run wire inside walls, special

jacketing (CL-2 or CL-3) is required to

both protect the wire and for fire preven-

tion. In some areas conduit is required.

For a trouble-free installation, low voltage

wire such as speaker wire must be run in

accordance with the National Electrical

Code and any applicable provisions of the

local building code. If you are unsure of

the correct installation techniques, wire

jacket or type of conduit to use, consult a

professional audio/video installer, your

building contractor, or the local building

and inspection department.

Incorporating a Remote Control

If you are planning to use a stereo system

with a hand held IR remote control, con-

sider the advantages of installing a Niles

IR Repeater system. You are able to con-

trol all of the functions of your system

from the room with the remote pair of

speakers. Niles makes a number of IR sen-

sors which install in the wall, in the ceiling,

in cabinetry, on tabletops, or even behind

the grille of your Niles CS speakers.

An IR sensor requires that a 2-conductor

shielded wire (West Penn D291 or equiva-

lent) be home run from each sensor loca-

tion to the main equipment location. This

wire is normally run beside the speaker

wire at the same time. Typically, the sen-

sor is placed in a location that faces your

listening position. Most remote controls

will have an effective line of sight range of

18 to 30 feet with any Niles sensor placed

in a wall, ceiling, on a cabinet or tabletop

However, when you place a Niles MS-1

MicroSensor behind the perforated alu-

minum grille of a speaker the effective

range is reduced to 9 to 15 feet.

Insulating the Wall Cavity

For best performance from your speakers

fill the wall cavity behind the speaker

with fiberglass insulation (e.g. R-19 unbat-

ted insulation). Try to keep the same

amount of insulation for each speaker,

particularly in the same room, for consis-

tent bass response.

5

Installation Considerations

TECH TIP

Wire size is expressed by its AWG (American Wire

Gauge) number. The lower the number, the larger

the wire, i.e. twelve AWG is physically larger than

fourteen AWG.

DS00245A/CS 3/8/99 4:13 PM Page 5

Speaker Placement

Placement for Critical Listening

If you like to imagine that the band or

orchestra is playing in front of you as you

listen to music, or you are very conscious

of clarity, detail and the textures of the

individual instruments, you are a critical

listener.

In a home theater, the intelligibility of dia-

log and action reproduced by the front

speakers is paramount! The position of the

speakers plays a very important role in

how clear the sound is and how a stereo

image is created. Here are some guide-

lines to make the process of placement

quick and easy.

Make sure the sound will not be blocked

or reflected off of furniture or other objects.

You should have a direct line of sight with

the front of the speaker. To determine the

best position, measure the “listening” dis-

tance between the ideal listening position

(your favorite chair or couch) and the wall

in which you plan to install the speakers.

Try to place the speakers so that they are

equally distant from your listening spot and

at least one half of the listening distance

apart (this maintains a large pleasant stereo

“image”). In home theater applications

where there is a center channel you may

choose to space the left and right main

speakers farther apart for a “bigger than

life” sound with Dolby®encoded movies

and TV shows. However, for combined

music and movie usage stay within the

good placement zone

for music. For exam-

ple; if you are ten feet back from the wall,

the speakers should be between five and

ten feet apart (See Figure 2).

Speaker

Placement

Zone

Speaker

Placement

Zone

10’

5’

10’

Figure 2

DS00245A/CS 3/8/99 4:13 PM Page 6

The Boundary Effect

Corners can affect the bass response of

the speaker powerfully! This is called the

boundary effect. You will emphasize par-

ticular bass frequencies and cancel out

other bass frequencies when you place

speakers close to the wall/ceiling bound-

ary or a corner wall boundary. This can

make the speaker sound excessively

boomy and inaccurate to some listeners,

while to others it just seems like more

bass sound. A good rule of thumb is if

you always listen to your current pair of

speakers with the bass turned up, you’ll

enjoy corner placement. If you keep your

tone controls at neutral, try to keep the

speakers at least one or two feet from the

boundaries of the room.

Placement for Varying Listening

Positions

If you want the freedom to sit anywhere

in a room facing any direction, and/or

find that you prefer the “all around you”

sound of some car stereos to a conven-

tional “sound stage” facing you, consider

the speaker placement techniques profes-

sional installers use in restaurants and

bars. They place speakers in an array

around the listening area, so that the

music is always surrounding you, regard-

less of the direction you face.

The rule of thumb is to add one pair of

speakers for every 100 to 200 square feet

of listening area. Curiously, this is not so

that you can play the music louder, but

so that you can play it softer! When you

have only one pair of speakers in a large

room you will notice that when the

sound is perfect in one part of the room,

it is too loud near the speakers. By plac-

ing more than one pair in the room you

will avoid these “hot spots” of loud

sound and you will create still more

sonic ambiance while maintaining clarity

and a rich sound everywhere.

You can make listener position still less

critical by using mono rather than stereo

This can be difficult to achieve with nor-

mal stereo amplifiers. However, Niles

manufactures Systems Integration

Amplifiers which enable one room to be

wired in stereo while other rooms are

wired in mono! Consult your local Niles

dealer for more information.

In smaller rooms or rooms that are infre-

quently used, you typically can’t justify

the expense of more than two speakers

Try to bracket the room with the two

speakers. Diagonal placement is a very

effective way to stretch the coverage pat-

tern of two speakers. You can also com-

promise between direct sound (for detai

and clarity) and reflected sound (the

ambient or “all around you” effect). By

trying to place the speakers so that they

create as much reflected sound as possi-

ble you emphasize the ambient effect

They can be up high in the wall or even

down low at power outlet height , in the

ceiling, near corners, or directed at

reflective objects and walls. The more

reflected sound there is in the room the

stronger the ambient effect at low vol-

umes. You should use moderation, how-

ever, otherwise the compromise becomes

too one sided and at high volumes the

sound will be blurred and less distinct.

Placement for Rear Home Theater

Applications

In a home theater, the goal is to repro-

duce the experience of a great movie the-

ater in our homes. The biggest difference

between the two is the rear or surround

speaker array in a commercial theater

Here, it is not uncommon to see twenty

or thirty speakers around the audience

This huge array of speakers assures that

you will feel completely surrounded by

the ambient soundtrack of the movie

Film makers try to use the “surround”

7

Speaker Placement

DS00245A/CS 3/8/99 4:13 PM Page 7

soundtrack to envelope you in the envi-

ronment on screen. They will place back-

ground music, rain sounds, traffic noise,

etc. on the “surround” soundtrack. In a

home with a single pair of speakers it is

easy for the jungle sounds to sound like

they are “in the middle of your head” just

like headphones!

A single pair of CS Loudspeakers, properly

placed, can create a very convincing sim-

ulation of an array of speakers. If you

place them near a hard reflecting surface

you can make one pair of speakers sound

like several. Create as many reflections as

possible by mounting the speaker up high

in the wall so that the ceiling will act as a

powerful reflector. If you place the speak-

ers near a corner, wash the sound down a

wall from a ceiling location, or mount the

speakers as far away as you can from the

listening area, more reflections will occur.

However, all of these placement tech-

niques require that you work your sur-

round sound amplifier channels harder. If

the surround sound system you are using

has a small five or ten watt amplifier for

the rear speakers, stay within five to eight

feet of the listening location. If you are

using a 25 to 50 watt amplifier you can

mount the speakers 10 to 15 feet away

from the listening location and still

achieve reasonably high volume levels.

Of course, the best way to emulate the

sound of multiple speakers is to use multi-

ple speakers. In large or unusually shaped

rooms this might be the only way to

achieve a good effect. If you like to listen

to music surround modes which emulate

concert hall acoustics, more than two sur-

round speakers will prove extraordinarily

effective. With Niles CS loudspeakers it is

easy to add another pair without affecting

the decor of the room. However, you will

need to use a much more powerful ampli-

fier than that which is built into a typical

surround sound receiver or amplifier.

Niles makes a number of Systems

Integration Amplifiers with proprietary fea-

tures that make them uniquely suited to

enhance a good surround sound system.

Consult your Niles dealer for more infor-

mation.

DS00245A/CS 3/8/99 4:13 PM Page 8

Installation

Fundamentals

Running the Speaker Wire in New

Construction

If you have doubts about whether you are

capable of installing a Niles Blueprint

Series In-Wall Speaker in your walls, con-

sult a Niles dealer or professional installer.

They have special tools, techniques, and

experience to make the impossible possi-

ble. The installer can provide you with an

estimate before any work is done.

Scheduling and Preparation

Plan to schedule the speaker wiring after

the electrical wiring is finished. That way

you can avoid wire routes which could

potentially induce hum over the speaker

wire. The basic rules are:

• Never run speaker wire through the

same hole as an electrical cable.

• Never run speaker wire into the same

J-box as electrical cable.

• Avoid running the speaker wire beside

the electrical cable. Keep it at least three

or four feet distant from any electrical

power cable.

Side-by-side wiring is unavoidable in par-

ticular spots in every house, just move the

speaker wire route away as soon as possi-

ble. If construction forces a side by side

run for more than ten feet, install meta

conduit or shielded speaker wire. Low-

voltage wires such as doorbells, inter-

coms, telephone, security, or television

cannot cause interference or hum on your

speaker wires, so you can safely run all of

them at the same time, through the same

holes, side-by-side.

Before you drill any holes, mount the

speaker brackets in the desired speaker

locations and mount p-rings or open

backed J-boxes where the in-wall volume

controls and stereo equipment will be.

Safety First!

Wear gloves, safety goggles and head pro-

tection when drilling. Avoid nails, they ruin

bits and they can create injury. Pay particu-

lar care when using “hole-hogs” and other

powerful electric drills; the torque of the

drill when suddenly stopped by a nail can

break the wrist of a strong man.

Drilling

Use a bit that is large enough for the wires

you plan to run. An auger bit is the pre-

ferred bit for rough-in wiring. It will actu-

ally pull itself through the wood, so that

the drill motor, not you, does most of the

work. You will be drilling a lot of holes,

so this is important.

Always drill the holes in the center of the

stud. If you have to notch the stud or dril

the hole closer than one inch from the

edge of the stud, protect the wire with a

nail plate (See Figure 3).

When drilling holes in ceiling joists dril

in the center of the joists and try to locate

the hole near the end of the joist. DO

NOT drill through a “gluelam” or any

load bearing beam without the direction

of your contractor.

9

Installation Fundamentals

Figure 3

DS00245A/CS 3/8/99 4:13 PM Page 9

Try to line the holes up perfectly, because

it makes pulling the wire much easier. A

good technique is to snap a chalk line

across the face of the studs or against the

bottom of the ceiling joists. Then work

backward so that you can always see the

holes you have already drilled. Paying

careful attention to this will save you a lot

of time later on!

Pulling the Cable

Pull the cable in sections (from the stereo

to the volume control, from the volume

control to the speaker). Start with the

longest sections and use left over wire to

complete the short sections. If you plan to

pull many rooms at the same time

through a central route, walk off the dis-

tance to each destination, add a generous

fudge factor for turns and other obstacles,

then cut off each section so that you have

a bundle of wires you can pull at once.

Whenever you run the wire further than

four and one half feet from a hole in a

stud or joist (open attic space, going up

walls, etc.), fasten the wire to the joists or

studs using cable clamps or appropriately

sized wire staples. The wire should not

have large sags in it, nor should it be too

tight. Try to protect the wire from being

stepped on in attics or other unfinished

crawl spaces. There are guard strips, race-

ways and conduits which can be used to

protect the cable. Consult the local build-

ing code for special requirements in your

area.

Concealing Speaker Wire in Existing

Walls

This is actually a fairly simple task if you

restrict your choice of speaker locations

and wire routes to the interior walls or

ceilings of your home. Interior walls in

almost all North American residences are

hollow, so that it is easy to flush mount

speakers into them and route new speaker

cable around the house. What you see

when you look at the painted wall

board, plaster, or paneling is only the

skin of the wall. Behind the skin is the

skeleton; two-by-four wood or metal

“studs” running vertically from the floor

to the ceiling in walls and two-by-six or

larger “joists” running horizontally in the

ceilings and floors. In between the studs

and the joists is the space for the wiring

and plumbing of your home.

Exterior walls are different. They must

insulate the house from the heat and

cold outside, so they are stuffed with

insulation. The national building code

requires that the hollow wall space in

exterior walls be broken by a horizontal

stud placed between the vertical studs.

This “fire blocking” makes it very diffi-

cult to retrofit long lengths of wire. In

some areas of the country the exterior

walls are constructed of solid masonry,

and have no hollow space for speakers

or wires.

Start by examining all the possible routes

you might take to run the speaker wire

from the speaker to the volume control

and back to the stereo. Use a stud sensor

or other device to locate the internal

structure of the wall. You want to avoid

all studs or joists. A typical route would

be: from the speaker location up the

inside of the wall to a new hole drilled

into the top “plate” (horizontal two-by-

four at the top of the inside of the wall),

into the attic crawl space, then down to

the volume control location through

another top plate, back up to the attic,

across the attic, and finally down anoth-

er plate to the wall behind the stereo sys-

tem itself (See Figure 4). The other very

common route is through the bottom

plate of the wall into an unfinished base-

ment or crawl space.

DS00245A/CS 3/8/99 4:13 PM Page 10

Identify where all of your electrical,

phone, and TV wiring is likely to be and

plan to route around it all. You can acci-

dentally induce 60 Hz hum on your

speakers if you run your speaker wire right

beside electrical wire for more than a few

feet. Try to keep speaker wire running par-

allel to power cables at least 3 feet away.

To find exactly where an electrical cable is

routed, try inspecting the inside of the wall

by turning off the breaker for a particular

power outlet or switch, removing the

cover plate and switch or

receptacle, and shining a

penlight into the wall. If you

have access to an attic or

basement space you can

quickly see which part of the

wall space the wire is free of

obstructions (See Figure 5).

When you don’t have access

above or below the wall, try

to estimate the existing wire

and pipe locations from the

positions of electrical outlets

and plumbed fixtures on both

sides of the wall. Take a look

at the outside of your house

too, sometimes conduit, vents

or drain pipe will be visible

that give useful information

Choose the route with the

fewest potential obstacles.

If your house is built on a slab or you are

wiring between two finished floors, look

for baseboards which could be removed

and replaced with the wire behind them

Doorjambs can be removed and often

have enough space for speaker wire al

the way around the door (See Figure 6).

Sometimes, an under-the-carpet run is

possible (there are special flat speaker

wires made for under-the-rug wire runs)

As a last resort, heating and air condition-

ing vents can be used as wire raceways for

11

Installation Fundamentals

Figure 4

Figure 5

Unobstructed space

for speaker wiring

Speaker

Location Volume

Control

Location

Stereo

Location

DS00245A/CS 3/8/99 4:13 PM Page 11

plenum rated wire (check your local

building codes, some municipalities

require conduit).

In traditional wood stud/drywall construc-

tion you can cut the hole for the speaker

and utilize the large hole to auger holes

across, up or down the wall for as far as

your drill bit will take you. If you have

matching paint and take reasonable care in

patching you can cut a hatch in the dry-

wall at each stud, run your wire, and patch

and touch-up the wall (See Figure 7).

When you are dealing with the unknown

because of the structure of your home, or

with difficult to patch wall materials like

plaster, lath and plaster, faux finishes,

wallpaper etc., be patient. A careful study

of the potential problems before you start

the job will pay off.

Figure 6

Figure 7

DS00245A/CS 3/8/99 4:13 PM Page 12

Installation

of Speakers

IMPORTANT: Before you cut into any

wall, review the sections on running

wire and speaker placement.

1. Drill a 1/8” pilot hole just barely

through the wallboard or dry wall (1/2” to

5/8” deep in most homes) about an inch

below the center of your proposed speak-

er location (an inch to the side if you are

mounting the speaker horizontally). BE

VERY CAREFUL NOT TO DRILL

THROUGH EXISTING WIRES, PIPES, OR

STRUCTURE. IF YOU FEEL ANY EXTRA

RESISTANCE AS YOU ARE DRILLING,

STOP. Cut a piece of coat hanger equal to

the width of the bracket. Bend the wire in

half creating a right angle. Poke the “L-

shaped” wire into the pilot hole and turn it

in a complete circle. If it turns freely,

repeat the procedure from a hole about an

inch above the center of your proposed

speaker location (See Figure 11).

If the wires movement is obstructed by a

pipe or cable, fill the hole (s) with spackle

or other patching compound and try

another location.

2. When determining the final location of

the cutout keep in mind that the frame

and bracket will extend beyond the

cutout. Make sure that you do not place

the edge of the cutout directly next to a

stud. Locate the studs using a stud sensor

or hand-knocking. Once you have deter-

mined the correct position for the cutout,

hold the supplied template up to the wal

surface. Level the template in either the

horizontal or the vertical position and

mark the wall with a pencil. Drill the four

corners with a 1/4” drill bit.

3. If you are cutting a painted or wal

papered drywall use a sheetrock or keyhole

saw. Cut the hole with the saw at a 45

degree angle. That way, the drywall section

can be replaced cleanly if there is an unseen

obstruction behind the wall. BE VERY

CAREFUL NOT TO SAW THROUGH

EXISTING WIRES, PIPES, OR STRUCTURE

IF YOU FEEL ANY EXTRA RESISTANCE AS

YOU ARE CUTTING, STOP.

4. If you are cutting into lath and plaster

walls, use masking tape to outline your

penciled marks, drill the four corners with

a 1/4” bit and use a razor to score the

plaster down to the lath beneath. Then use

a chisel to remove all of the plaster within

the taped outline. Finally, insert a meta

cutting blade into a sabre saw and very

slowly and carefully saw the lath. Sawing

the lath can easily vibrate plaster off the

wall. If you have the patience, use a pair

of tin snips to slowly nip away at the lath

instead. There is no risk with this method,

it is just time consuming.

13

Installation of Speakers

Figure 11

DS00245A/CS 3/8/99 4:13 PM Page 13

5. Fill the wall cavity with insulation at this

point. Remember to use equal amounts

of insulation for each speaker.

Installing the Speaker

If the grille is already

installed, remove it by

using a bent paper clip or

the tip of a corkscrew and

pulling it away from the

frame (See Figure 12).

1. Separate the speaker wire so

that at least two inches of each conduc-

tor are free.

2. Strip one half inch of insulation from the

end of each conductor of the speaker wire.

3. If you have gold pin connectors which

you wish to use, affix them to the stripped

wire ends now.

4. Connect one stripped wire end (or con-

nector) to the black and one to the red termi-

nal. Pay attention to the markings on the

wire. Each speaker must be connected to the

amplifier in the same way.

5. Slip the bracket through the hole. Orient

the speaker so that the speaker is level.

Secure the speaker and the bracket by tight-

ening the baffle screws. Do not overtighten

the screws, this will distort the frame and the

grilles will not fit (this is not permanent, just

loosen the screws and the grille will pop in).

The screws should pull the speaker and

bracket together (sandwiching the drywall) so

that the frame is absolutely flush with the wall

surface. There should be no gaps between

the wall and the frame (See Figure 13).

6. Carefully fit the grille into its recess so that

it is barely in place. Starting with one corner,

go around the speaker, pushing the grille in a

little bit each time. You should be gentle, the

aluminum grille can be easily bent out of

shape. The speaker will have an absolutely

flush appearance when it is fully in place.

Installing a Niles MS-1 MicroSensor™

There is a 1/2" round molded "IR Sensor

Knockout" on the face of the

speaker baffle. To prevent dam-

age to the crossover network

you must remove the

knockout from the rear of

the speaker. Do not attempt

to remove the knockout

with the speaker face up.

Lay the speaker face down on

a clean carpet or rug. Put the tip

of a screwdriver into the center of

the round "knockout" and sharply tap the

screwdriver handle as necessary. Install

the MS-1 using its mounting hex nut and

washer so that it is tightly secured to the

speaker. Connect all wires and continue

your installation.

Figure 12

Figure 13

DS00245A/CS 3/8/99 4:13 PM Page 14

Speaker Phase

Speaker wire has two conductors. One

conductor is attached to the negative (-)

terminals and one conductor is attached to

the positive (+) terminals of both your

speaker and your amplifier. Usually, the

wire is marked for your convenience.

There are different ways wires are marked:

a stripe on one wire, a ribbed area of one

conductor you can only feel, different col-

ors of metal wire on each conductor, or

there might be a fabric strand or string

wound into one of the conductors. Of

course, there are some wires which appear

completely identical. Be careful, or you

might make a mistake.

If you make a mistake, one speaker will be

playing “out-of-phase” with the other

speaker. An out-of-phase pair of speakers

work against each other and the sound of

the two speakers playing together will be

lacking in bass and be “phasey” sounding.

If you suspect the sound is not right and

you cannot see any markings on the wire,

try this simple test:

1. Stand half way between the two speakers.

2. Play some music with the amplifier or

radio 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

setting of the volume control. When the

sound has a richer bass and is slightly

louder the speakers are working together

or “in-phase”.

Painting the Aluminum Grilles

The grille is important to the sound of the

CS loudspeakers. Do not fill the holes of

the grille with paint. The grille is construct-

ed of aluminum with a perfectly even

powder coat overall. This powder coat is

an ideal primer.

Remove the grilles before painting. If you are

using 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 first on some paper if you

have no experience painting with spray paint.

If you are using an applicator or brush, and

a can of paint, thin the paint first. You do

not want to have to poke hundreds of holes

in your beautifully painted grilles.

15

Installation of Speakers

DS00245A/CS 3/8/99 4:13 PM Page 15

Operation

Listening at Higher Volumes

It requires more power to achieve a rea-

sonable volume of sound in a large room

than it does in a small room. It is possi-

ble (even if you are not a teenager) to

turn the volume so high that the amplifi-

er

runs out of power

. This creates “clip-

ping” distortion.

Clipping distortion makes treble sound

very harsh and unmusical. When you hear

harsh sounding treble from any good

speaker, turn the volume down immedi-

ately! Those harsh sounds are masking

some much more powerful ultra-high-fre-

quency sound spikes which will quickly

damage any fine loudspeaker. You are

much less likely to damage a speaker with

a large amplifier because it will be very

loud indeed before it produces any clip-

ping distortion.

Cleaning

You can clean the speaker with a damp-

ened soft cloth or paper towel. If the

speaker is mounted high up on a wall or

ceiling, use a broom to gently brush it off.

DS00245A/CS 3/8/99 4:13 PM Page 16

17

Specifications

Specifications

Model CS525

Driver Compliment

5-1/4” Hi-Polymer laminate woofer

1” polycarbonate tweeter

Design Principle

Infinite baffle for large and varying air

volumes

Recommended Amplifier Power

5 to 50 watts

Nominal Impedance

8 Ohms

Frequency Response

65Hz-15kHz, +/-3dB

Sensitivity

89dB for 2.83V pink noise

Overall Exterior Frame Dimensions

7-1/8” x 9-7/8”

Depth Behind Wall

2-1/2” (Assumes 1/2” drywall)

Wall Cut-Out Dimensions

6” x 8-3/4”

Wiring Requirements

0-30 ft.................18 gauge

30-80 ft. ............ 16 gauge

80 ft. and up ...... 14 gauge

Warranty

Five year limited warranty

Model CS650

Driver Compliment

6-1/2” Hi-Polymer laminate woofer

1” polycarbonate tweeter

Design Principle

Infinite baffle for large and varying air

volumes

Recommended Amplifier Power

5 to 50 watts

Nominal Impedance

8 Ohms

Frequency Response

60Hz-15kHz, +/-3dB

Sensitivity

89dB for 2.83V pink noise

Overall Exterior Frame Dimensions

8-3/4” x 11-11/16”

Depth Behind Wall

2-3/4” (Assumes 1/2” drywall)

Wall Cut-Out Dimensions

7-5/16” x 10-1/4”

Wiring Requirements

0-30 ft.................18 gauge

30-80 ft. ............ 16 gauge

80 ft. and up ...... 14 gauge

Warranty

Five year limited warranty

DS00245A/CS 3/8/99 4:13 PM Page 17

PLEASE FILL OUT THE

WARRANTY REGISTRATION

CARD ON THE REVERSE SIDE,

DETACH, AND MAIL TO:

Niles Audio Corporation

Warranty Registration Dept.

P.O. Box 160818

Miami, Florida 33116-0818

DETACH HERE

DS00245A/CS 3/8/99 4:13 PM Page 18

Model Purchased____________________________________________________________________________________

Serial Number____________________________________________________________________________________

Date Purchased (month/day/year)__________________________________________________________________

Dealer Name and Location________________________________________________________________________

__________________________________________________________________________________________________

❑Dr. ❑Miss ❑Mr. ❑Mrs. ❑Ms.

Name____________________________________________________________________________________________

Address_________________________________________________________________________________________

__________________________________________________________________________________________________

City_________________________________________________________State________________Zip______________

Telephone (___________)___________________________________________________________________________

WARRANTY REGISTRATION CARD

Age:

❏Under 25

❏25-34

❏35-44

❏45-54

❏55 & over

Income:

❏Under $24,999

❏$25,000-$34,999

❏$35,000-$44,999

❏$45,000-$59,999

❏$60,000-$74,999

❏$75,000-$99,999

❏Over $99,999

Occupation:

❏Arts/Entertainment

❏Business Owner

❏Engineer

❏Finance/Accounting

❏General Office

❏Management

❏Professional

❏Sales/Marketing

❏Student

❏Tradesperson

Musical tastes:

(Please check all that

apply)

❏Alternative

❏Classical

❏Country

❏Jazz

❏New Age

❏Popular

❏R&B

❏Rock

❏Other______________

How did you hear

about Niles?

❏Architect/Developer

❏Custom Installer

❏Direct Mail

❏Friend/Family

❏In-Store Display

❏Interior Designer

❏Magazine Ad

❏Mail-Order Catalog

❏Newspaper Ad

❏Product Brochure

❏Product Review

❏Retail Salesperson

What magazines do

you read?

1. ______________________

2. ___________________

3. _____________________

Who will install the

product?

❏Custom Installer

❏Electrician

❏Friend

❏Myself

Which factor(s) influ-

enced the purchase

of your Niles product?

(Please check all that

apply)

❏Ease of Use

❏Price/Value

❏Product Features

❏Quality/Durability

❏Reputation

❏Style/Appearance

❏Warranty

Do you. . .?

❏Own a House. If yes,

how many square feet?

__________________

❏Own a Town House/

Condominium/Co-

op

❏Rent an Apartment

❏Rent a House

Are you interested in

receiving literature on

other Niles products?

❏Yes ❏No

Are there products/

capabilities that you

would like to see

introduced?

____________________

____________________

____________________

____________________

____________________

____________________

Please take a moment to fill out our warranty registration card. The information helps us to

get to know you better and develop the products you want

DS00245A/CS 3/8/99 4:13 PM Page 19

Limited Warranty

Niles Audio Corporation ("NILES") warrants its loudspeaker products to the original purchaser

to be free of manufacturing defects in material and workmanship for a period of five years

from date of purchase.

This Warranty is subject to the following additional conditions and limitations. The Warranty

is void and inapplicable if NILES deems that the product has been used or handled other than

in accordance with the instructions provided by the manufacturer, including but not limited to

damage caused by accident, mishandling, improper installation, abuse, negligence, or normal

wear and tear, or any defect caused by repair to the product by anyone other than NILES or an

authorized NILES dealer.

To obtain warranty service, take the unit to the nearest authorized NILES dealer, who will test

the product and if necessary, forward it to NILES for service. If there are no authorized NILES

dealers in your area, you must write to NILES and include your name, address, model and

serial number of your unit, along with a brief description of the problem. A factory Return

Authorization Number will be sent to you. DO NOT RETURN ANY UNIT WITHOUT FIRST

RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS FROM NILES.

If the above conditions are met, the purchaser's sole remedy shall be to return the product to

NILES, in which case NILES will repair or replace, at its sole option, the defective product

without charge for parts or labor. NILES will return a unit repaired or replaced under warranty

by shipping same by its usual shipping method from the factory (only) at its expense within the

United States of America. THERE ARE NO OTHER WARRANTIES, INCLUDING WITHOUT

LIMITATION, EITHER EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FIT-

NESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PRODUCT.

REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE

REMEDY OF THE CONSUMER/PURCHASER. NILES SHALL NOT BE RESPONSIBLE FOR

ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT PROVIDED

(OR PROHIBITED) BY APPLICABLE LAW.

Some states do not allow the exclusion or limitation of incidental or consequential damages,

so the above limitation may not apply to you. This warranty gives you specific legal rights,

and you may also have other rights which vary from state to state.

For the name of your nearest authorized NILES dealer contact:

NILES AUDIO CORPORATION

P.O. BOX 160818, Miami, Florida 33116-0818.

Please fill in your product information and retain for your records.

Model____________________________________________________________________________________

Serial No._________________________________________________________________________________

Purchase Date_____________________________________________________________________________

DS00245A/CS 3/8/99 4:13 PM Page 20

Niles Audio Corporation

12331 S.W. 130 Street

Miami, Florida 33186

Tel: (305) 238-4373

Fax: (305) 238-0185

Printed in Taiwan

©1999 Niles Audio Corporation. Because Niles strives to continuously improve

products, Niles reserves the right to change product specifications without not

Niles, the Niles logo, Blending High Fidelity and Architecture and Blueprint Se

In-Wall Loudspeakers are registered trademarks of Niles Audio Corporation. Do

is a registered trademark of Dolby Laboratories Licensing Corporation. Decora

registered trademark of Leviton Manufacturing Co., Inc. DS00245A

®

DS00245A/CS 3/8/99 4:13 PM Page 21