Niles HDLCR Manuel utilisateur
INSTALLATION GUIDE
HDLCR
FOR USE IN MULTI-CHANNEL MUSIC OR HOME THEATER SYSTEMS
HIGH DEFINITION, LEFT/CENTER/RIGHT CHANNEL, IN-WALL LOUDSPEAKER
Thank you for choosing the HDLCR High-Definition, Left/Center/Right Channel In-Wall
Loudspeaker from Niles. With proper installation and operation, you should 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 1
Installation Considerations 3
Speaker Placement 6
Installation Fundamentals 9
New Construction: Installing A Bracket 14
Existing Construction: Installing A Bracket 16
Finishing the Installation 17
Operation 22
Removing the Grille and Speaker 22
Specifications 23
Limited Warranty 24
Warranty Registration Card 25
CONGRATULATIONS!
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
INTRODUCTION
The Niles HDLCR High-Definition, Left/Center/Right Channel, In-Wall Loudspeaker is expressly
designed for superior sonic quality in front-, center-, or rear-channel applications. It employs
advanced technology components that extract the subtle nuances in recorded music or the thun-
derous action sound in a movie. The HDLCR is the perfect choice wherever quality of sound is the
most important consideration.
FEATURES AND BENEFITS
INJECTION-MOLDED TCC WOOFERS WITH BUTYL-
RUBBER SURROUND, LONG-THROW VOICE COIL/
MAGNET STRUCTURE, AND VENTED POLE PIECE
The HDLCR features newly-developed woofer-cone material that combines injection-molded
polypropylene with talc, carbon, and ceramic (TCC) stiffening agents. As a result, the cone offers
extreme stiffness and light weight for accurate, dynamic response. A long-throw voice coil/magnet
structure ensures increased cone excursion to enhance low frequency response and dynamic
impact. Additionally, each woofer employs a vented pole piece for increased bass linearity and a
butyl-rubber surround for improved midrange damping and clarity as well as moisture resistance.
1-INCH TETERON TRI-LAMINATE TWEETER HOUSED IN A
PRECISION ADJUSTMENT MECHANISM
The HDLCR’s Teteron Tweeter employs a tri-laminate design consisting of an inner textile layer,
which forms the dome, a high damping layer to kill unwanted resonances, and an outside layer of
urethane to add stiffness and prevent breakup modes. The result is a transparently clear, sweet,
natural-sounding tweeter, which still maintains extended frequency response. This advanced
tweeter is housed in a precision adjustment mechanism, which permits the tweeter to be ac-
curately positioned after installation for optimum performance and without the diffraction distortion
typical of traditional pivoting tweeters.
DIRECTED SOUND FIELD GEOMETRY™ (DSFG) DELIVERS
OPTIMUM PHASE RESPONSE TO LISTENERS AND COM-
PENSATES FOR HIGH SPEAKER PLACEMENT
The HDLCR employs Niles’ Directed Sound Field Geometry (DSFG). With DSFG, the tweeter is offset
from the center of the dual woofers. The resulting acoustic interaction between the woofers and
the offset tweeter results in the flattest frequency and phase response, approximately 15-degrees
off-axis from the tweeter. This gives optimum performance to a seated listener, even if the loud-
speaker is mounted above a built-in TV.
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2
INSTALLER-SELECTABLE ACOUSTIC FINE TUNING
Using the baffle-mounted TREBLE and BASS CUT controls, the installer can de-emphasize the bass and/
or treble response by 3 dB after installing the HDLCR to precisely tone match the sound in any room.
CTR L/R MODE SWITCH
The HDLCR includes a baffle-mounted CTR L/R mode switch to optimize performance in applications
as either a center channel or left/right loudspeaker for front-channel use.
EASY RETROFIT INSTALLATION IN YOUR EXISTING HOME
Designed for ease of installation, the Niles mounting system makes retrofit installations simple and
fast. A supplied template assures fast and accurate hole cutting. The bracket slips behind the drywall
and the screws secure the bracket to the frame, sandwiching the drywall between them. The speaker
baffle attaches to the frame, and the grille mounts over the speaker.
THREE-STAGE INSTALLATION SYSTEM FOR REMODELS OR
NEW CONSTRUCTION
Only the parts needed are installed during a particular stage of construction. After framing and wiring
are finished, the bracket is installed. After the drywall is up, but before the painter begins to paint, the
frame is installed, and the rustproof aluminum grille is left for the painter to match to the surround-
ings. The speaker is installed only when construction is completely finished. Masking or prepping the
speaker for painting and worries about speaker theft during final construction are never an issue!
MICROPERF™ ALUMINUM GRILLES
Niles’ exclusive MicroPerf™ grille construction provides an exceptionally tight hole pattern for
acoustic transparency at all audio frequencies and enables the speaker elements to remain invisible.
MicroPerf aluminum grilles can also be painted to blend seamlessly with the surrounding decor.
Additionally, the aluminum grille material will never rust or discolor over time.
INFRARED SENSOR MOUNT
The speaker baffle has a locator designed for the Niles MS-100 MicroSensor®, a miniature infrared
sensor. The MS-100 installs discreetly behind the aluminum grille to minimize wall clutter in the home.
To control the equipment, the listener simply points the remote control at the speaker from up to
15 feet away.
NILES AUDIO CORPORATION – 1-800-BUY-HIFI 3
Figure 1. Mounting an HDLCR
loudspeaker into an wall.
NILES’ HD HIGH-DEFINITION VOICE MATCHING
Ensures compatibility with other Niles HD High-Definition in-wall, on-wall, and ceiling-mount
models to accommodate a wide range of system designs.
DOLBY® DIGITAL READY
The HDLCR is specifically designed for Home Theater Sound. This model exceeds the specifications
set forth by Dolby Laboratories for the accurate reproduction of Dolby Digital-Encoded Sources.
INSTALLATION CONSIDERATIONS
Bracket
New Construction Wings
Frame
Speaker Baffle
Acoustic Fine
Tuning Controls
IR Sensor Knockout
Grille
TOOLS AND PRECAUTIONS
We recommend using the following tools to install a HDLCR loudspeaker:
• Electric drill with 1/4- and 1/2-inch drill bits, and a 1-inch flat drill bit
(for drilling through studs)
• Keyhole or drywall saw
• Stiff wire, fish tape, or glow rods (for routing cables)
• Phillips screwdriver set
• Cable ties
• Pencil
• Level
• Rubber gloves and protective eyewear
Before starting the installation, please observe the following precautions:
• Turn off all system power before making any connections.
• Always wear protective eyewear when using tools.
• Make sure hands are clean before installation.
• Wear gloves when working with fiberglass insulation.
RECOMMENDED AMPLIFIER POWER
For satisfactory performance, we recommend using a surround amplifier with a power rating of
10 to 125 watts. Curiously, most loudspeakers are not damaged by large amplifiers, but rather
by small amplifiers. If your system is playing loud music, a small amplifier will run out of power
very quickly and can create damaging “clipping” distortions. A more powerful amplifier will play at
the same volume without distorting. See OPERATION on page 22 for more information about
amplifier clipping distortion.
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI
LOUDSPEAKER WIRE
Use 2-conductor loudspeaker wire when connecting loudspeakers to your receiver or amplifier.
For most applications, we recommend using 16- or 18-gauge wire. For wiring runs longer than 80
feet, we recommend 14-gauge wire. The spring-loaded terminals of the HDLCR will accommodate
up to 12-gauge wire directly. Larger sizes can be accommodated via pin connectors.
When running wire inside walls or ceilings, use special jacketed cable (CL-2 or CL-3) to protect the
wire and for fire prevention. In some areas, conduit is also 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 installa-
tion techniques, 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 REMOTE CONTROL
If you are planning to use a stereo system with a hand-held IR remote control, consider the advan-
tages of having a Niles IR Repeater system installed. It will allow you to control all of the functions
of your system from the room with the remote pair of speakers.
Niles makes a number of IR sensors, which install in the wall, in the ceiling, in cabinetry, on
tabletops, or even behind the grille of your Niles HDLCR speaker. An IR sensor requires that a CAT5
cable be home run from each sensor location to the main equipment location. This wire is normally
run beside the speaker wire at the same time. Typically, the sensor is placed in a location that
faces the listening position.
Most remote controls will have an effective line-of-sight range of 18 to 30 feet when used with
any Niles sensor placed in a wall, ceiling, on a cabinet or tabletop. However, when a Niles
MS-100 MicroSensor® is used behind the HDLCR’s perforated aluminum grille, the effective range
is reduced to 9 to 15 feet.
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INSULATING THE WALL CAVITY
For best performance from your speakers, fill the wall cavity behind the speaker with fiberglass
insulation (e.g., R-19 un-batted insulation). Try to keep the same amount of insulation for each
speaker, particularly in the same room, for consistent bass response.
SPEAKER PLACEMENT
NOTE: THE NILES HDLCR LOUDSPEAKER IS DESIGNED FOR USE IN FRONT LEFT-, CENTER-, OR FRONT
RIGHT-CHANNEL APPLICATIONS ONLY. FOR REAR-CHANNEL APPLICATIONS, WE RECOMMEND USING A
NILES HDFX OR CM6HDFX LOUDSPEAKER.
PLACING THE HDLCR AS THE FRONT LEFT AND RIGHT
SPEAKERS
In a home theater, the intelligibility of dialog 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 guidelines to make the process of placement
quick and easy:
• Make sure the sound will not be blocked or reflected off furniture or other objects. The
listener should have a direct line of sight with the front of the speaker. To determine
the best position, measure the “listening” distance between the ideal listening position
(e.g., favorite chair or couch) and the wall in which you plan to install the speakers.
• For stereo music applications, try to place the speakers so that they are equally distant
from the listening spot and at least one half of the listening distance apart to maintain
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,
we recommend using the placement zone for stereo music. Ideally, if the listening
position is 10 feet back from the wall, place the speakers between 5 and 10 feet apart,
as shown in Figure 2.
6
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.
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
As for placement height, place front left and right speakers on either side of the picture source
so that their tweeters are not more than 24 inches above or below the center-channel speaker’s
tweeter (see Figure 3 on page 8).
NOTE: DO NOT PLACE AN HDLCR SPEAKER TOO CLOSE TO A DIRECT-VIEW TV MONITOR, AS IT MAY
CAUSE PICTURE DISCOLORATION. IN GENERAL, TRY TO KEEP IT AT LEAST 24 INCHES AWAY FROM THE
TV. WITH LARGER CRT SCREEN SIZES, TEST THE PLACEMENT DISTANCE FOR PICTURE DEGRADATION
BEFORE INSTALLATION.
THE BOUNDARY EFFECT
Placing a speaker in a corner can powerfully affect the way a listener perceives bass response.
Known as the boundary effect, placing speakers close to a wall/ceiling boundary or near a corner-
wall boundary will emphasize certain bass frequencies, while canceling others. This effect can
make the speaker sound excessively boomy and inaccurate to some listeners, while to others it
just seems like more bass sound.
As a good rule-of-thumb, if you like listening to your current pair of speakers with the bass turned
up, you’ll enjoy corner placement. However, if you listen with the tone controls at neutral, try keep-
ing the speakers at least 2 or 3 feet from the boundaries of the room.
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Speaker
Placement
Zone
Speaker
Placement
Zone
10' 5' 10'
Figure 2. Recommended HDLCR loudspeaker
placement for front left and right channels.
PLACING AN HDLCR AS THE CENTER-CHANNEL SPEAKER
The center-channel speaker is the workhorse in a home theater system. It handles all of the critical
dialog and is vitally important in creating the illusion of sounds emanating directly from the picture.
Here are some tips for obtaining optimum center-channel performance:
• In a typical installation, place the HDLCR horizontally, directly above the television or
projection screen. Try to insure that the speaker is not placed too high relative to the
left and right speaker, as shown in Figure 3.
8
TV
HDLCR HDLCR
HDLCR
Not Greater
than 24"
Not Greater
than 24"
HDLCR
Figure 3. If the HDLCR is placed above a TV, install the speaker with the tweeter up. If it is
placed below a TV, install the HDLCR with the tweeter down.
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