Niles HDLCRBX Bedienungsanleitung

INSTALLATION GUIDE

FOR USE IN MULTI-CHANNEL MUSIC OR HOME THEATER SYSTEMS

HIGH DEFINITION, LEFT/CENTER/RIGHT CHANNEL BOOKSHELF LOUDSPEAKER

HDLCRBX

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Thank you for choosing the

HDLCRbx High-Deﬁ nition, Left/Center/Right Channel 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

Loudspeaker Placement 4

Finishing the Installation 7

Operation 10

Specifications 11

CONGRATULATIONS!

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NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373

NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373NILES AUDIO CORPORATION – 1-800-BUY-HIFINILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373

INTRODUCTION

The Niles HDLCRbx High-Deﬁ nition, Left/Center/Right Channel Loudspeaker is expressly designed

for superior sonic quality in front left-, center-, or front right-channel applications. It employs ad-

vanced technology components that extract the subtle nuances in recorded music or the thunder-

ous action sound in a movie. The HDLCRbx is the perfect choice wherever quality of sound is the

most important consideration.

FEATURES AND BENEFITS

DUAL 5-1/4-INCH TCC™ WOOFERS WITH BUTYL-RUB-

BER SUSPENSION

The HDLCRbx 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. Additionally, the use of a butyl-

rubber suspension offers substantial beneﬁ ts, including increased movement without mechanical

limitations, weather resistance, and improved midrange damping for better detail and clarity.

BUMPBACK™ WOOFER MAGNETS

Niles engineers have utilized a unique woofer magnet construction, allowing far greater “throw” or

voice-coil excursion. The result is a new level of deep bass performance.

1-INCH TETERON TRI-LAMINATE TWEETER

The HDLCRbx’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.

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY®

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY

DELIVERS

OPTIMUM PHASE RESPONSE TO LISTENERS AND

COMPENSATES FOR HIGH LOUDSPEAKER PLACEMENT

The HDLCRbx employs Niles’ D.S.F.G. Directed Sound Field Geometry

. With D.S.F.G., 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 ﬂ attest frequency and phase response, approximately

15-degrees off-axis from the tweeter. This gives optimum performance to a seated listener, even if

the loudspeaker is mounted above or below a TV or screen.

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ACOUSTIC FINE TUNING

The HDLCRbx includes acoustic ﬁ ne-tuning controls on the rear panel. These controls enable optimiza-

tion of the high frequencies and dialog with 3 dB of Treble Cut and 3 dB of Dialog Enhancement.

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY®

D.S.F.G. DIRECTED SOUND FIELD GEOMETRY

DEFEAT

The HDLCRbx includes a rear-panel control that enables the installer to deactivate the D.S.F.G.

Directed Sound Field Geometry

in certain applications. For example, when the loudspeaker is

installed at ear level behind a perforated screen, the loudspeaker’s response can be improved with

D.S.F.G. defeated.

NILES’ HD HIGH-DEFINITION VOICE MATCHING

Ensures compatibility with other Niles HD High-Deﬁ nition in-wall, on-wall, and ceiling-mount models

to accommodate a wide range of system designs.

DOLBY DIGITAL

READY

The HDLCRbx is speciﬁ cally designed for Home Theater Sound. This model exceeds the speciﬁ cations

set forth by Dolby Laboratories for the accurate reproduction of Dolby Digital-Encoded Sources.

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INSTALLATION CONSIDERATIONS

RECOMMENDED AMPLIFIER POWER

For satisfactory performance, we recommend using a surround ampliﬁ er with a power rating of

10 to 150 watts. Curiously, most loudspeakers are not damaged by large ampliﬁ ers, but rather

by small ampliﬁ ers. If your system is playing loud music, a small ampliﬁ er will run out of power

very quickly and can create damaging “clipping” distortions. A more powerful ampliﬁ er will play at

the same volume without distorting. See

OPERATION

on page 10 for more information about

ampliﬁ er clipping distortion.

LOUDSPEAKER WIRE

Use 2-conductor loudspeaker wire when connecting loudspeakers to your receiver or ampliﬁ er. For

most applications, we recommend using 16- or 18-gauge wire. For wiring runs longer than 80 feet,

we recommend 14-gauge wire. The HDLCRbx’s gold-plated, ﬁ ve-way binding posts will accommo-

date up to 12-gauge wire directly. Larger sizes can be accommodated via pin connectors.

NOTE:

THE HDLCR

FEATURES GOLD-PLATED, FIVE-WAY BINDING POSTS THAT CAN BE CONNECTED IN

SEVERAL DIFFERENT WAYS (E.G., BANANA PLUGS, SPADE TERMINALS, AND DIRECT WIRING).

When running wire inside walls or ceilings, use special jacketed cable (CL-2 or CL-3) to protect the

wire and for ﬁ re 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 Electri-

cal Code and any applicable provisions of the local building code. If you are unsure of the correct

installation techniques, wire jacket, or type of conduit to use, consult a professional audio/video

installer, building contractor, or the local building and inspection department.

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 HDLCR

LOUDSPEAKER IS DESIGNED FOR USE IN FRONT LEFT-, CENTER-, OR

FRONT RIGHT-CHANNEL APPLICATIONS ONLY. FOR BEST RESULTS, PLACE THE HDLCR

ON A STAND

OR BOOKSHELF. FOR REAR-CHANNEL APPLICATIONS, WE RECOMMEND USING A NILES HDFX OR

750FX

LOUDSPEAKER.

PLACING HDLCR

BX’

AS THE FRONT LEFT AND

RIGHT LOUDSPEAKERS

In a home theater, the intelligibility of dialog and action reproduced by the front loudspeakers is para-

mount! The position of the loudspeakers 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 loudspeaker. 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 loudspeakers.

•

For stereo music applications, try to place the loudspeakers 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 loudspeakers farther apart for a “bigger than life” sound with

Dolby

Dolby®

Dolby

encoded movies and TV shows. However, for combined music and movie usage,

® 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 loudspeakers between 5 and 10 feet

apart, as shown in

Figure 1

Figure 1.

Recommended

HDLCRbx loudspeaker placement

for front left and right channels.

Loudspeaker

Placement Zone

Loudspeaker

Placement Zone

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As for placement height, place front left and right loudspeakers vertically on either side of the

picture source, so that their tweeters are not more than 24 inches above or below the center-

channel loudspeaker’s tweeter (see

Figure

on page 6). For best response, orient the

loudspeakers so the tweeters face out.

NOTE: DO NOT PLACE AN HDLCR

LOUDSPEAKER TOO CLOSE TO A DIRECT-VIEW TV MONITOR, AS IT

MAY CAUSE PICTURE DISCOLORATION. TEST THE PLACEMENT DISTANCE FOR PICTURE DEGRADATION

BEFORE INSTALLATION.

THE BOUNDARY EFFECT

Placing a loudspeaker in a corner can powerfully affect the way a listener perceives bass re-

sponse. 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.

PLACING AN HDLCR

AS THE CENTER-CHANNEL

BX AS THE CENTER-CHANNEL BX

LOUDSPEAKER

The center-channel loudspeaker 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 HDLCRbx horizontally, directly above the television or

projection screen. Try to insure that the loudspeaker is not placed too high relative to

the left and right loudspeakers, as shown in

Figure 2

(on the next page).

Figure 2 (on the next page).Figure 2

(CONTINUED ON NEXT PAGE)

DS00420B-0_HDLCRbx.indd 7 4/15/08 3:16:23 PM

•

For installations where a perforated projection screen will be used, place the HDLCRbx,

either horizontally or vertically, behind the screen at ear level, as shown in

Figure 3

Figure 3. Figure 3

NOTE: WHEN PLACING THE HDLCR

AT EAR LEVEL, SET THE D.S.F.G. SWITCH (ON THE REAR)

TO DEFEAT. SEE PAGE 7 FOR MORE DETAILS.

Figure 3.

Recommended HDLCRbx center-channel placement behind a perforated

projection screen.

HDLCRBX

HDLCRHDLCR

HDLCRBX

HDLCR HDLCR

Figure 2.

If the HDLCRbx is placed above a TV, orient the loudspeaker with the tweeter

up. If it is placed below a TV, orient the HDLCRbx with the tweeter down.

PLACING AN HDLCR

AS THE CENTER-CHANNEL

BX AS THE CENTER-CHANNEL BX

LOUDSPEAKER

(CONTINUED)

LOUDSPEAKER (CONTINUED)LOUDSPEAKER

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FINISHING THE INSTALLATION

CONNECTING THE LOUDSPEAKER

At each loudspeaker, separate the loudspeaker wire so that at least 2 inches of each

1. At each loudspeaker, separate the loudspeaker wire so that at least 2 inches of each 1.

conductor are free. Strip away 1/4 inch of insulation from each loudspeaker wire. Using

correct polarity, connect the appropriate conductor to each five-way binding post.

NOTE: Observe correct polarity: Positive (+) goes to the RED post and negative (–) goes

to the BLACK post. If you are unsure of wire polarity, see the section,

Checking

Loudspeaker Phase

on page 8.

Loudspeaker Phase on page 8.Loudspeaker Phase

Connect the other end of the loudspeaker wires to the home theater receiver (or ampli-

fier) in the same way.

Turn on the home theater receiver and calibrate all loudspeakers in the system accord-

ing to the receiver manufacturer’s instructions.

CHECKING LOUDSPEAKER ORIENTATION FOR D.S.F.G.

DIRECTED SOUND FIELD GEOMETRY

DIRECTED SOUND FIELD GEOMETRY®

DIRECTED SOUND FIELD GEOMETRY

The D.S.F.G. Directed Sound Field Geometry provides optimum off-axis phase and frequency re-

sponse due to the acoustic interaction between the woofers and the tweeter. The ﬂ attest response

will be obtained approximately 15 degrees off-axis in the direction opposite the tweeter. For opti-

mum performance, refer to

Figure

(on the next page) and orient the loudspeaker as follows:

•

For center-channel use above a TV, place the HDLCRbx horizontally with the tweeter

up. Set the D.S.F.G. switch to On.

•

For center-channel use below a TV, place the HDLCRbx horizontally with the tweeter

down. Set the D.S.F.G. switch to On.

•

For front-channel use, place one HDLCRbx vertically on either side of the TV so the

tweeters face outward. If the HDLCRbxs are at ear level, set both D.S.F.G. switches to

Defeat. If the HDLCRbxs are above or below ear level, set both D.S.F.G. switches to On.

DS00420B-0_HDLCRbx.indd 9 4/15/08 3:16:28 PM

ACOUSTIC FINE TUNING

Each HDLCRbx loudspeaker features separate Treble Cut and Dialog Enhance controls on the rear

for acoustic ﬁ ne-tuning after placement, as shown in

Figure

. Adjust these controls as follows:

•

Initially set Treble Cut to Flat and Dialog Enhance to Normal.

•

If a HDLCRbx is placed in a room with highly reflective surfaces like glass or tile or the

reproduced sound is too bright, set the Treble Cut switch to – 3 dB to lower the high-

frequency response.

•

Listen to dialog being reproduced on the HDLCRbx. If you want it more pronounced, set

the Dialog Enhance switch to Enhance to boost the mid-frequency response.

CHECKING LOUDSPEAKER PHASE

Loudspeaker wire has two conductors. On both your loudspeaker and ampliﬁ er, one conductor

is attached to the negative (–) terminals, while the other is attached to the positive (+) terminals.

Usually, the wire is marked for your convenience, but the marking can be done in the following

different ways:

•

Stripe on one wire

•

Ribbed area you can feel on one conductor

•

Different colors of metal wire on each conductor

•

Fabric strand or string wound into one of the conductors

Figure 4.

The HDLCRbx’s Treble Cut, Dialog Enhance, and D.S.F.G. switches.

DS00420B-0_HDLCRbx.indd 10 4/15/08 3:16:29 PM

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