Niles Audio OS53SIBLACK 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

OS6.3SiOS5.3Si

CONGRATULATIONS!

Thank you for choosing a Niles OS Indoor/Outdoor Loudspeaker. 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 such anelegant-appearingloudspeaker.

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

 

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Features and Benefits

LIMITED LIFETIME WARRANTY

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

Stereo Input “Si” Design

Plays both left and right channels to provide broad sound coverage and a stereo effect from a single loudspeaker

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

DUAL-VOICE-COILWoofer

Delivers both left and right channels from one loudspeaker

Dual UltraSilk® Dome Tweeters

One-inchfluid-cooledtweeters provideultra-widedispersion for clear, detailed, and extended high frequencies

STEREO-IMAGINGTweeter Array

Directs the high-frequencysounds from both the right and left channels from one loudspeaker

Weatherproof Engineering

Enables OS loudspeakers to handle extreme hot, cold, and moist environments, exceeding the military’s strict anti-corrosionspecificationMIL-STD-883D

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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

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 speakers 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

d

b

c

d

b

d

a

g

g

f

e

e

Figure 1. OS6.3Si or OS5.3Si parts:

a. Bracket

b. Nail Hole

c. Wire Hole

d. Screw Hole

e. Bracket Knob f. Grille

g. Cabinet

4

h

h

i

Figure 2. OS6.3Si or OS5.3Si Parts (continued):

h. Binding Posts

i. Threaded Insert (1/4"-20thread size)

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 the loudspeaker 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. The volume control is 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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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 5.3Si loudspeaker, 5 to 100 W per channel

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

Ironically, most speakers 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 THE LOUDSPEAKER for the Best Sound Quality

Traditionally, when using a pair of stereo loudspeakers, the listener will be positioned directly between the left and right loudspeakers to achieve optimum stereo sound. However, in some applications this is not possible, especially when a large area of coverage is required. It was for these types of applications that the OS “Si” loudspeaker was created. With its ultra-wide

dispersion pattern, a single OS “Si” loudspeaker is able to project quality summed-stereosound over a larger area. No matter where youare—youare always in the sweet spot. (SeeFigure 5 on the next page).

 

(continued on next page)

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

 

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Placing THE LOUDSPEAKER for the Best Sound Quality (continued)

Make sure furniture or other objects will not block or reflect sound from the loudspeaker. You should have a direct line of sight with the front of the loudspeaker.

10'

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

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 OS 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 OS loudspeaker in a corner or under an eave (see Figure 6 on the next page). This type of placement gives the loudspeaker two boundaries, both reinforcing the bass sounds. Of course, if you wish to hear less bass, try moving the loudspeaker away from the boundary (seeFigure 7 on the next page).

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