Niles Speaker Bedienungsanleitung
INSTALLATION GUIDE
HDFX
FOR USE IN MULTI-CHANNEL MUSIC OR HOME THEATER SYSTEMS
HIGH DEFINITION, SIDE/REAR CHANNEL EFFECTS, IN-WALL LOUDSPEAKERS
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Thank you for choosing HDFX High-Definition, Side-/Rear-Channel Effects, In-Wall Loudspeakers
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
Loudspeaker Placement 6
Installation Fundamentals 9
New Construction: Installing A Bracket 14
Existing Construction: Installing A Bracket 15
Finishing the Installation 17
Operation 22
Removing the Grille and Loudspeaker 22
Specifications 23
Limited Warranty 24
Warranty Registration Card 25
CONGRATULATIONS!
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI
NILES AUDIO CORPORATION – 1-800-BUY-HIFI
INTRODUCTION
Niles HDFX High-Definition, Side-/Rear-Channel Effects, In-Wall Loudspeakers are expressly
designed for superior sonic quality in side- or rear-channel applications. They employ advanced
technology components that extract the subtle nuances in recorded music or the thunderous
action sound in a movie. HDFX loudspeakers are the perfect choice wherever quality of sound is
the most important consideration.
FEATURES AND BENEFITS
5-1/4-INCH INJECTION-MOLDED TCC WOOFER WITH
BUTYL-RUBBER SURROUND, LONG-THROW VOICE
COIL/MAGNET STRUCTURE, AND VENTED POLE PIECE
The HDFX 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, the 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.
DUAL 2-1/4-INCH INJECTION-MOLDED TCC
FULL-RANGE DRIVERS FOR SIDE-CHANNEL EFFECTS
Dual 2-1/4-inch injection-molded TCC™ (talc, carbon, and ceramic-filled) polypropylene full-range
drivers fire to either side, providing a uniform, sound field that is ideal for special effects.
COAXIAL 1-INCH TETERON TRI-LAMINATE TWEETER
WITH FLUID-COOLING AND ULTRA-WIDE DISPERSION
FOR CLEAR AND DETAILED HIGH FREQUENCIES
The HDFX’s 1-inch Coaxial 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.
INSTALLER-SELECTABLE ACOUSTIC FINE TUNING
Using the baffle-mounted TREBLE/CUT and BASS/CUT controls, the installer can de-emphasize the
bass and/or treble response by 3 dB after installing the HDFX to precisely tone match the sound in
any room.
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BIPOLE/DIPOLE AND FX/CUT SWITCHES
The HDFX also includes a baffle-mounted BIPOLE/DIPOLE mode switch so the installer can set the sur-
round effects for either side or rear placement. A companion FX/CUT switch allows adjustment of the
direct/diffuse sound field balance to provide realistic effects, regardless of room size.
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 loud-
speaker baffle attaches to the frame, and the grille mounts over the loudspeaker.
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 loudspeaker is installed only when construction is completely finished. Masking or prepping
the loudspeaker for painting and worries about loudspeaker theft during final construction are never
an issue!
MICROPERF™ ALUMINUM GRILLES
Niles’ exclusive MicroPerf™ aluminum-grille construction provides an exceptionally tight hole
pattern for acoustic transparency at all audio frequencies and enables the loudspeaker elements
to remain invisible. MicroPerf™ aluminum grilles can also be painted to blend seamlessly with the
surrounding decor.
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 HDFX 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.
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI 3
Bracket
New Construction Wings
Frame
Loudspeaker Baffle
Acoustic Fine
Tuning Controls
Grille
Figure 1. Mounting an HDFX vertically into a wall.
INSTALLATION CONSIDERATIONS
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TOOLS AND PRECAUTIONS
We recommend using the following tools to install an HDFX 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 150 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 HDFX 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 loudspeaker 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 instal-
lation techniques, wire jacket, or type of conduit to use, consult a professional audio/video installer,
building contractor, or the local building and inspection department.
INSULATING THE WALL CAVITY
For best performance from your loudspeakers, fill the wall cavity behind the loudspeaker with
fiberglass insulation (e.g., R-19 unfaced insulation). Try to keep the same amount of insulation for
each loudspeaker, particularly in the same room, for consistent bass response.
5
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.
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LOUDSPEAKER PLACEMENT
NOTE: THE NILES HDFX LOUDSPEAKER IS DESIGNED FOR USE IN SIDE- OR REAR-CHANNEL
APPLICATIONS ONLY. FOR FRONT-OR CENTER-CHANNEL APPLICATIONS, WE RECOMMEND USING A
NILES HDLCR OR HDLCRBX LOUDSPEAKER
PLACEMENT FOR HOME THEATER REAR APPLICATIONS
In home theater, the goal is to reproduce the experience of a great movie theater in your home. The
biggest difference between the two venues is the use of a rear- or surround-loudspeaker array in a
commercial theater. Here, it is not uncommon to see 20 or 30 loudspeakers placed around theater
walls. This huge array of loudspeakers assures the audience will feel completely surrounded by the
ambient soundtrack of the movie.
Filmmakers carefully use the “surround” soundtrack to envelope viewers in the sound environment
on screen. They will place background music, rain sounds, traffic noise, etc. on the “surround”
soundtrack to create desired effects. However, in a home with a single pair of front loudspeakers,
this surround effect will be lost, and jungle sounds may actually sound like they are emanating “from
the middle of your head,” just like headphones!
Each HDFX loudspeaker is equipped with a BIPOLE/DIPOLE switch that optimizes the surround
effects for either side or rear placement (see SETTING THE BIPOLE/DIPOLE MODE
on page 20). Here are some recommended loudspeaker placement tips:
• Place the surround loudspeakers on a rear wall directly behind the listening position. If
possible, try placing the loudspeakers nearer to the corners, as shown in Figure 2 and
3. Set each BIPOLE/DIPOLE switch to DIPOLE for reflected sound. Moreover, the adjoin-
ing walls will act as powerful reflectors to create even more reflections.
• If you place the surround loudspeakers farther away from the listener, the surround
sound will dissipate, requiring even more power from the surround-sound channels. If
your sound system uses a small 5- or 10-watt surround amplifier for the rear loud-
speakers, be sure to place the loudspeakers within 5 to 8 feet of the listening location.
• If you are using a larger 25- to 50-watt surround amplifier, you can mount the loud-
speakers 10 to 15 feet away from the listening location and still achieve reasonably
high volume levels. In large or unusually-shaped rooms, this might be the only way to
achieve a good effect.
6
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI
• If your home theater system is capable of reproducing Dolby EX surround sound,
consider using a second pair of HDFX loudspeakers (on the side walls) for an additional
rear surround effect, as shown in Figure 4 (on the next page). Ideally, the side loud-
speakers should be placed in-line with the listening position with the BIPOLE/DIPOLE
controls set to DIPOLE. For a more focused surround effect, set the BIPOLE/DIPOLE
controls to BIPOLE.
• If you like listening to music in surround modes (which emulate concert hall acoustics),
consider using more than two surround loudspeakers to provide an extraordinary
effect. With Niles HDFX loudspeakers, it is easy to add another pair without affecting
the decor of the room.
NOTE: FOR THIS APPLICATION, YOU WILL NEED TO USE A MORE POWERFUL AMPLIFIER THAN
THE ONE BUILT INTO A TYPICAL SURROUND-SOUND RECEIVER OR AMPLIFIER. NILES MAKES A
NUMBER OF SYSTEMS INTEGRATION AMPLIFIERS WITH PROPRIETARY FEATURES THAT MAKE
THEM UNIQUELY SUITED TO ENHANCE YOUR EXISTING SURROUND-SOUND SYSTEM. CONSULT
YOUR LOCAL NILES DEALER FOR MORE INFORMATION.
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(CONTINUED ON NEXT PAGE)
Figure 2. HDFX loudspeakers are placed
near back corner walls of a home theater room.
Figure 3. HDFX loudspeakers are placed
near back corner walls of a home theater room
with an L-shaped sofa.
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THE BOUNDARY EFFECT
Placing a loudspeaker in a corner can powerfully affect the way a listener perceives bass response.
Known as the boundary effect, placing loudspeakers 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 loudspeaker 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 loudspeakers with the bass
turned up, you’ll enjoy corner placement. However, if you listen with the tone controls at neutral, try
keeping the loudspeakers at least 2 or 3 feet from the boundaries of the room.
8
PLACEMENT FOR HOME THEATER REAR APPLICATIONS
(CONTINUED)
Figure 4. Two pairs of HDFX loudspeakers
reproduce Dolby EX surround sound in a home
theater room.
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