Niles OS5.3Si Manuel utilisateur
INSTALLATION GUIDE
OS6.3Si OS5.3Si
FOR USE IN DISTRIBUTED AUDIO OR HOME THEATER SYSTEMS
INDOOR/OUTDOOR WEATHERPROOF LOUDSPEAKERS
DS00427BCN_OS_3Si.indd 1 6/24/05 4:36:22 PM
Thank you for choosing a Niles OS Indoor/Outdoor Loudspeaker. 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
Limited Warranty 20
Warranty Registration Card 21
CONGRATULATIONS!
DS00427BCN_OS_3Si.indd 2 6/24/05 4:36:22 PM
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
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 an
elegant-appearing loudspeaker.
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2
FEATURES AND BENEFITS
STEREO INPUT “SI” DESIGN
Plays both left and right channels to provide broad sound coverage and a stereo effect from a
single loudspeaker.
PATENT-PENDING 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.
DUAL-VOICE-COIL WOOFER
Delivers both left and right channels from one loudspeaker.
DUAL ULTRASILKTM DOME TWEETERS
One-inch fluid-cooled tweeters provide ultra-wide dispersion for clear, detailed, and extended
high frequencies.
STEREO-IMAGING TWEETER ARRAY
Directs the high-frequency sounds 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-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.
DS00427BCN_OS_3Si.indd 4 6/24/05 4:36:23 PM
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
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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 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-PLATED 5-WAY BINDING POSTS
Repel moisture and ensure positive connections in virtually any conditions over long periods of time.
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PARTS GUIDE
4
a
dd b
bc
g
g
f
e
e
d
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
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h
h
i
Figure 2. OS6.3Si or OS5.3Si Parts (continued):
h. Binding Posts
i. Threaded Insert (1/4"-20 thread size)
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
5
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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
• 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 eyewear
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 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
receiver or amplifier.
Figure 4. Incorporating a
volume control.
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
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-stereo sound
over a larger area. No matter where you are—you are always in the sweet spot. (See Figure 5
on the next page).
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(CONTINUED ON NEXT PAGE)
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10'
Figure 5. Illustration depicts the optimum placement zone
for a listening distance of 10 feet.
10'
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.
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 (see Figure 7 on the next page).
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