Niles Audio HDLCRBX Home Theater System User Manual
Contents
1. INSTALLATION GUIDE FOR USE IN MULTI CHANNEL MUSIC OR HOME THEATER SYSTEMS HIGH DEFINITION LEFT CENTER RIGHT CHANNEL BOOKSHELF LOUDSPEAKER HDLCRex CONGRATULATIONS Thank you for choosing the HDLCRbx High Definition 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 INTRODUCTION The Niles HDLCRbx High Definition 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 a2. use a gentle vacuum Cleaner SPECIFICATIONS Driver Complement e Two 5 1 4 TCC Woofers e 1 Teteron Tweeter with fluid cooling Design Principle e Acoustic suspension with a tuned port e D S F G Directed Sound Field Geometry for optimum phase and frequency response Recommended Amplifier Power 10 to 150 watts per channel Nominal Impedance 4 ohm Frequency Response 45 Hz to 21 kHz 3 dB Sensitivity 90 dB with 2 83 V pink noise input measured at 1 meter on axis Dimensions 21 Lx 7 1 4 W x 9 3 4 D 53 3 cm L x 18 4 cm W x 24 8 cm D Weight 21 Ib 9 5 Kg Wiring Requirements We recommend using 16 to 18 gauge loudspeaker wire for runs up to 80 feet and 14 gauge loudspeaker wire for runs up to 200 feet The connectors will accommodate 12 to 22 gauge wire NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 __________11 NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 ___________13 NILES BLENDING HIGH FIDELITY AND ARCHITECTURE Niles Audio Corporation 12331 S W 130 Street Miami Florida 33186 Designed and Engineered in USA Made in China 2008 Niles Audio Corporation All rights reserved Niles the Niles logos Blending High Fidelity and Architecture and D S F G Directed Sound Field Geometry are registered trademarks of Niles Audio Corporation TCC is a tr
3. may choose to space the left and right main loudspeakers 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 loudspeakers between 5 and 10 feet apart as shown in Figure 1 Figure 1 Recommended HDLCRbx loudspeaker placement Loudspeaker 4 for front left and right channels Placement Zone 10 gt 5 10 Loudspeaker j Placement Zone 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 2 on page 6 For best response orient the loudspeakers so the tweeters face out NOTE DO NOT PLACE AN HDLCRex 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 ex
4. Treble Cut 3dB e Flat Inputs Enhance Normal Da DSFG Defeat On R NILES Niles Audio Corporation Designed Engineered in the USA Assembled in the Taiwan LA0076BTW ls O Figure 4 The HDLCRbx s Treble Cut Dialog Enhance and D S F G switches CHECKING LOUDSPEAKER PHASE Loudspeaker wire has two conductors On both your loudspeaker and amplifier 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 e Stripe on one wire e Ribbed area you can feel on one conductor e Different colors of metal wire on each conductor e Fabric strand or string wound into one of the conductors Of course there are some wires that appear completely identical So be careful or you might make a connection mistake If you do one loudspeaker will be playing out of phase with the other loudspeaker A pair of out of phase loudspeakers works against each other and the sound of the two playing together will be lacking in bass and sound phasey If you suspect the sound is not right and you cannot see any markings on the wire try this simple test 1 a an On Stand halfway between the loudspeakers Play some music with the amplifier or receiver set to Mono Listen to the richness of the bass and the loudness of the sound Turn off the
5. ademark of Niles Audio Corporation All other trademarks are the property of their respective owners 05 05 DS00420B
6. amplifier and reverse the connections on one amplifier channel only Repeat the listening test with the same volume control setting When the sound has a richer bass and is slightly louder the loudspeakers are working together or in phase INSTALLING THE GRILLE If desired at each loudspeaker carefully fit the grille to its cabinet Starting with one corner gently press the grille frame around the loudspeaker s edge pushing it in at each of the four recessed holes When properly installed the grille will be absolutely flush in appearance with the cabinet NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 ___________9 OPERATION LISTENING AT HIGHER VOLUMES Achieving a reasonable volume of sound in a large room requires more amplifier power than it does in a small room It is possible to turn the volume up so high that the amplifier runs out of power This creates clipping distortion which will make treble sound very harsh and unmusical When you hear harsh sounding treble from any good loudspeaker turn the volume down immedi ately Those harsh sounds are masking much more powerful ultra high frequency sound spikes which will quickly damage any fine loudspeaker You are much less likely to damage a loudspeaker driven by a large amplifier because it will be very loud before any clipping distortion is produced CLEANING To clean the enclosure use a dampened soft cloth or paper towel To clean the grille
7. cessively 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 HDLCRex AS THE CENTER CHANNEL 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 e Ina 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 CONTINUED ON NEXT PAGE NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 ___________ 5 PLACING AN HDLCRex AS THE CENTER CHANNEL LOUDSPEAKER CONTINUED HDLCRex Not Greater than 24 Not Greater than 24 HDLCR HDLCRex 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 e For installations where a perforated projection scre
8. en will be used place the HDLCRbx either horizontally or vertically behind the screen at ear level as shown in Figure 3 NOTE WHEN PLACING THE HDLCRex AT EAR LEVEL SET THE D S F G SWITCH ON THE REAR TO DEFEAT SEE PAGE 7 FOR MORE DETAILS Perforated Screen HDLCRex Figure 3 Recommended HDLCRbx center channel placement behind a perforated projection screen FINISHING THE INSTALLATION CONNECTING THE LOUDSPEAKER 1 At each loudspeaker separate the loudspeaker wire so that at least 2 inches of each 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 2 Connect the other end of the loudspeaker wires to the home theater receiver or ampli fier in the same way 3 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 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 flattest response will be obtained approximately 15 degrees
9. ire For example 12 AWG is Y physically larger than 14 AWG NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 ___________3 LOUDSPEAKER PLACEMENT NOTE THE NILES HDLCRex LOUDSPEAKER IS DESIGNED FOR USE IN FRONT LEFT CENTER OR FRONT RIGHT CHANNEL APPLICATIONS ONLY FOR BEST RESULTS PLACE THE HDLCRex ON A STAND OR BOOKSHELF FOR REAR CHANNEL APPLICATIONS WE RECOMMEND USING A NILES HDFX OR CM750FX LOUDSPEAKER PLACING HDLCRex s 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 e 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 e 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 e In home theater applications where there is a center channel you
10. ly and can create damaging clipping distortions A more powerful amplifier will play at the same volume without distorting See OPERATION on page 10 for more information about amplifier clipping distortion 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 HDLCRbx s gold plated five way binding posts will accommo date up to 12 gauge wire directly Larger sizes can be accommodated via pin connectors NOTE THE HDLCRex 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 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 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 fe number the larger the w
11. off axis in the direction opposite the tweeter For opti mum performance refer to Figure 4 on the next page and orient the loudspeaker as follows e For center channel use above a TV place the HDLCRbx horizontally with the tweeter up Set the D S EG switch to On e For center channel use below a TV place the HDLCRbx horizontally with the tweeter down Set the D S FG switch to On e 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 EG switches to Defeat If the HDLCRbxs are above or below ear level set both D S FG switches to On NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 ______________ 7 ACOUSTIC FINE TUNING Each HDLCRbx loudspeaker features separate Treble Cut and Dialog Enhance controls on the rear for acoustic fine tuning after placement as shown in Figure 4 Adjust these controls as follows e Initially set Treble Cut to Flat and Dialog Enhance to Normal e Ifa 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 e 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 O a gt HDLCRex Left Center Right Channel Loudspeaker
12. result the cone offers extreme stiffness and light weight for accurate dynamic response Additionally the use of a butyl rubber suspension offers substantial benefits 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 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 flattest 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 mo
13. unted above or below a TV or screen NILES AUDIO CORPORATION 1 800 BUY HIFI 305 238 4373 _____________ 1 ACOUSTIC FINE TUNING The HDLCRbx includes acoustic fine 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 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 Definition in wall on wall and ceiling mount models to accommodate a wide range of system designs DOLBY DIGITAL READY The HDLCRbx 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 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 quick
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