Niles Audio OS6.3 User Manual

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I N S T A L L A T I O N G U I D E

F o r u s e i n d i s t r i b u t e d a u d i o o r h o m e t h e a t e r s y s t e m s

I N D O O R / O U T D O O R W E A T H E R P R O O F L O U D S P E A K E R S

OS7.3OS6.3OS5.3

CONGRATULATIONS!

Thank you for choosing Niles OS Indoor/Outdoor Loudspeakers. With proper installation and operation, you’ll enjoy years of trouble-freeuse.

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-upis 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 theaward-winningNiles 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-areatocabinet-widthratio, 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/Outdoorline-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 suchelegant-appearingloudspeakers.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI305-238-4373

 

1

 

Features and Benefits

LIMITED LIFETIME WARRANTY

We engineer bulletproof reliability into all OS loudspeakers and back them up with our industryleading Limited Lifetime Warranty

Integrated Woofer/Baffle Assembly

Increases the woofer cone-areatocabinet-widthratio for enhanced bass output.

Mica-FilledPolypropylene Woofer Cone

Reduces breakup and lowers distortion.

Butyl-RubberWoofer Cone Surround

Damps resonance and provides exceptional durability.

UltraSilk® Dome Tweeter

One-inchfluid-cooledtweeter providesultra-widedispersion for clear, detailed, and extendedhigh-frequencies.

Weatherproof Engineering

Enables OS loudspeakers to handle extreme hot, cold, and moist environments, exceeding the military’s strict anti-corrosionspecificationMIL-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-FRIENDLYDesign

Delivers stellar acoustical performance, yet tucks discreetly away into corners and under eaves.

Low-DiffractionGrille 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.

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Rigid, Acoustically-InertCabinet

Prevents transmission of unwanted vibrations for clean and dynamic bass response.

All-WeatherVersatility

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-Plated5-WayBinding Posts

Repel moisture and ensure positive connections in virtually any conditions over long periods of time.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI305-238-4373

 

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PARTS GUIDE

e

a

d

b c

d

b d

 

g

f

g

 

 

 

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

h

e

4

i

j

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

i. Binding Posts

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

NOTE: Bracket and Shelf Stand are used depending upon installation requirements. See Installation on page 14.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI305-238-4373

 

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Installation Considerations

Tools and Materials Required

Electric drill with 1/4- and 1/2-inchdrill bits, and a1-inchflat 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 eyewear

Wiring

The OS loudspeakers connect to your receiver or amplifier using 2-conductorloudspeaker wire (seeFigure 3 on the next page). For most applications, we recommend using 16or18-gaugewire. For wiring runs longer than 80 feet, we recommend14-gaugewire. The binding posts on OS loudspeakers accommodate up to12-gaugewire directly. Larger sizes can be accommodated using spade, banana, or pin connectors.

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.

When you run wire inside walls, outdoors or in marine installations, special jacketing or conduit is required for a trouble-freeinstallation 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).

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(continued on next page)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 3. Wiring directly from a

Figure 4. Incorporating a

receiver or amplifier

volume control

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.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI305-238-4373

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.

 

Speaker

 

 

Placement

 

 

Zone

 

10'

5'

10'

 

 

Speaker

 

 

Placement

 

 

Zone

 

Figure 5. Illustration depicts the optimum placement zone for a listening distance of 10 feet.

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-halfthe 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 (seeFigure 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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