Niles OS5.3 Manuel utilisateur

INSTALLATION GUIDE

OS7. 3 OS6.3 OS5.3

FOR USE IN DISTRIBUTED AUDIO OR HOME THEATER SYSTEMS

INDOOR/OUTDOOR WEATHERPROOF LOUDSPEAKERS

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

CONGRATULATIONS!

NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373

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

SoundﬁeldTM 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.

However, 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.

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.

MICA-FILLEd POLYPROPYLENE WOOFER CONE

Reduces breakup and lowers distortion.

BUTYL-RUBBER WOOFER CONE SURROUNd

Damps resonance and provides exceptional durability.

ULTRASILk®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.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373 3

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.

ggf

PARTS GUIdE

Figure 1. OS .3 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

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

Figure 2. OS .3 Series Parts Guide (continued)

i. Binding Posts

j. Threaded Insert (1/4"-20 Thread size)

TECh TIP

Wire size is expressed by its AWG (American

Wire Gauge) number – the lower the number,

the larger the wire. For example, 12 AWG is

physically larger than 14 AWG.

INSTALLATION CONSIdERATIONS

TOOLS ANd MATERIALS REqUIREd

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WIRING

The OS loudspeakers connect to your receiver or ampliﬁer using 2-conductor loudspeaker wire

(see Figure 3 on the next page). For most applications, we recommend using 16- or 18-gauge

wire. For wiring runs longer than 80 feet, 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 pin 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 next page).

Figure 3. Wiring directly from a

receiver or ampliﬁer

Figure 4. Incorporating a

volume control

NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373

RECOMMENdEd AMPLIFIER POWER

For optimum performance, we recommend ampliﬁers with the following power ratings:

 For the OS 5.3 loudspeaker, 5 to 100 W per channel

 For the OS 6.3 loudspeaker, 5 to 125 W per channel

 For the OS 7.3 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 of listening area. Your local Niles dealer is a good source for advice on

loudspeaker placement for your particular installation.

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Speaker

Placement

Zone

Speaker

Placement

Zone

10' 5' 10'

Figure 5. Illustration depicts the optimum placement zone

for a listening distance of 10 feet.

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 possible 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.

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 apart (see Figure 5).

If possible, mount the loudspeakers between 8 and 12 feet 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.

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