Niles Audio PERFORMANCE PR6 User's Manual
Contents
1. D Za NILES Niles Audio Corporation 12331 S W 130 Street Miami Florida 33186 Tel 305 238 4373 Fax 305 238 0185 www nilesaudio com 2008 Niles Audio Corporation DS00279B2. a new hole drilled into the top plate horizontal two by four at the top of the inside of the wall into the attic crawl space then down to the volume control location through another top plate back up to the attic across the attic and finally down anoth er plate to the wall behind the stereo system itself See Figure 4 The other very common route is through the bot tom plate of the wall into an unfinished basement or crawl space Aa r D a m e Ba Za an m Da cD a Speaker Volume IN Location Control Location l Stereo ne ii Figure 4 Location Identify where all of your electrical phone and TV wiring is likely to be and plan to route around it all You can accidentally induce 60 Hz hum on your speakers if you run your speaker wire right beside electrical wire for more than a few feet Try to keep speaker wire running parallel to power cables at least 3 feet away To find exactly where an electrical cable is routed try inspecting the inside of the wall by turning off the breaker for a particular power outlet or switch removing the cover plate and switch or receptacle and shin Unobstructed space for speaker wiring Figure 5 ES ing a penlight into the wall If you have access to an attic or basement space you can quickly see which
3. and Treble Controls The PR Performance loudspeakers feature separate baffle mounted bass and treble controls for fine tuning after installation Each control provides for approximately 3dB in steps of 1dB of Bass or Treble reduction This is useful if the speakers are placed near boundaries Bass Cut or in a room with highly reflective sur faces like glass or tile Treble Cut See Figure 18 Figure 18 en a a e n ep ic cp a cp a ep n ep r en oo En E on _ a a h a ep La E a cD a ep cp rr En gt oo En _ Adjusting the Tweeter The tweeter is housed in a precision adjust ment mechanism which enables precise aiming of the directional high frequencies to provide optimum performance To adjust the tweeter 1 Carefully grasp the tweeter housing by placing your thumb and forefinger in the indentations provided 2 Rotate the tweeter housing either clock wise or counter clockwise as required The mechanism is indexed at equal intervals so that both speakers in a pair can be adjusted equally Simply count the number of clicks as the first tweet er is adjusted Repeat the process for the second speaker rotating the tweeter the same number of cli
4. high that the amplifier runs out of power This creates clipping distortion Clipping distortion makes treble sound very harsh and unmusical When you hear harsh sounding treble from any good speaker turn the volume down immedi ately Those harsh sounds are masking some much more powerful ultra high fre quency sound spikes which will quickly damage any fine loudspeaker You are much less likely to damage a speaker with a large amplifier because it will be very loud indeed before it produces any clip ping distortion Cleaning You can clean the speaker with a damp ened soft cloth or paper towel If the speaker is mounted high up on a wall or ceiling use a broom to gently brush it off URED CA k cD h D2 Za specifications Model PR5 Driver Complement 5 1 4 Talc Filled Polypropylene Woofer with Custom Debris Screen and Butyl Rubber Surround 3 4 Kaladex Tweeter Housed in a Low Diffraction Precision Adjustment Mechanism Design Principle Infinite baffle for large and varying air volumes Recommended Amplifier Power Ten to One Hundred Watts per Channel Nominal Impedance 8 Ohm Frequency Response 70 Hz to 20 000 Hz plus or minus 3dB on axis Dispersion Pattern 90 degrees Horizontally or Vertically plus or minus 5dB Sensitivity 88 decibels for 2 83 volts of Pink Noise measured at 1 meter on axis Overall Exterior Frame Dimension
5. the grille will pop in The screws should pull the frame and bracket together sandwiching the drywall so that the frame is abso lutely flush with the wall surface There should be no gaps between the wall and the frame See Figure 12 Installation of the Speaker Sensor and Grille in New or Existing Gonstruction Installing a Niles MS110 MicroSensor There is a 1 2 round molded IR Sensor Knockout on the face of the speaker baf fle To prevent damage to the crossover network you must remove the knock out from the rear of the speaker Do not attempt to remove the knockout with the speaker face up Lay the speaker face down on a clean carpet or rug Put the tip of a screwdriver into the center of the round knockout and sharply tap the screwdriver handle as necessary Install the MS110 using its mounting hex nut and washer so that it is tightly secured to the speaker Connect all wires and con tinue your installation on a a a h _ ep i ep a e on E y a ep cD r on _ E oo on 10139304I5009 HUNSIN JO MAN JOJ 93 1149 pue Jaxeads AU JO VOLE J2J5U Installing the Speaker If the grille is already installed remove it by using a bent paper clip or the tip of a corkscrew and pulling it away from the frame See Figure 13 1 Separate the speaker end of the two condu
6. you are cutting a painted or wall papered drywall use a sheetrock or keyhole saw Cut the hole with the saw at a 45 degree angle pE That way the drywall section can be replaced cleanly if there is an unseen obstruction behind the wall BE VERY CAREFUL NOT TO SAW THROUGH EXISTING WIRES PIPES OR STRUCTURE IF YOU FEEL ANY EXTRA RESISTANCE AS YOU ARE CUTTING STOP 4 If you are cutting into lath and plaster walls use masking tape to outline your penciled marks drill the four corners with a 1 4 bit and use a razor to score the plaster down to the lath beneath Then use a chisel to remove all of the plaster within the taped outline Finally insert a metal cutting blade into a sabre saw and very slowly and carefully saw the lath Sawing the lath can easily vibrate plaster off the wall If you have the patience use a pair of tin snips to slowly nip away at the lath instead There is no risk with this method it is just time consuming 5 Fill the wall cavity with insulation at this point Remember to use equal amounts of insulation for each speaker 6 Slip the mounting bracket through the hole and pull it toward you so that its front edge slides into the hole and stops in place 7 Attach the frame to the bracket by screwing the frame to the bracket using the supplied screws Do not overtighten the screws this will distort the frame and the grilles will not fit this is not perma nent just loosen the screws and
7. Figure 17 Speaker Phase Speaker wire has two conductors One conductor is attached to the negative terminals and one conductor is attached to the positive terminals of both your speaker and your amplifier Usually the wire is marked for your convenience There are different ways wires are marked a stripe on one wire a ribbed area of one conductor you can only feel different col ors of metal wire on each conductor or there might be a fabric strand or string wound into one of the conductors Of course there are some wires which appear completely identical Be careful or you might make a mistake If you make a mistake one speaker will be playing out of phase with the other speaker An out of phase pair of speakers work against each other and the sound of the two speakers playing together will be lacking in bass and be phasey sounding If you suspect the sound is not right and you cannot see any markings on the wire try this simple test 1 Stand half way between the two speak ers 2 Play some music with the amplifier or radio set to Mono 3 Listen to the richness of the bass and the loudness of the sound 4 Turn off the amplifier and reverse the con nections on one amplifier channel only 5 Repeat the listening test with the same setting of the volume control When the sound has a richer bass and is slightly louder the speakers are working together or in phase Adjusting the Bass
8. INSTALLATION OPERATION GUIDE MODELS PRS PRO PERFORMANCE BLENDING HIGH FIDELITY AND RCHITECTURE congratulations Thank you for choosing a Performance In Wall Loudspeaker from Niles 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 GONTENTS INTRODUCTION 2 FEATURES AND BENEFITS 2 INSTALLATION CONSIDERATIONS 4 LOUDSPEAKER PLACEMENT 6 INSTALLATION FUNDAMENTALS 9 NSTALLATION OF BRACKETS FRAMES AND GRILLES IN NEW CONSTRUCTION 13 INSTALLATION OF BRACKETS FRAMES AND GRILLES IN EXISTING WALLS 15 INSTALLATION OF THE LOUDSPEAKER SENSOR AND GRILLE IN NEW OR 16 EXISTING CONSTRUCTION REMOVAL OF LOUDSPEAKER AND GRILLE 20 OPERATION 20 SPECIFICATIONS 21 2008 Niles Audio Corporation All rights reserved Niles the Niles logo MicroSensor Blending High Fidelity and Architecture and Systems Integration Amplifier are registered trademarks of Niles Audio Corporation BumpBack and MicroPerf are trademarks of Niles Audio Corporation Kaladex is a registered trademark of DuPont Teijin Films Dolby is a registered trademark of Dolby Laboratories Licensing Corporation Decora is a registered trademark of Leviton Manufacturing Co Bec
9. allation the Niles mounting system makes retrofit installa tions simple and fast A supplied template assures fast and accurate hole cutting The bracket slips behind the drywall and the screws secure the frame to the bracket 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 You install only the parts you need for a particular stage of construction When the framing and wiring are finished you install the bracket After the drywall is up but before the painter begins to paint you install the frame and provide the rustproof aluminum grilles to the painter so that they can be painted to match the surroundings Only when construction is completely fin ished do you put the valuable speaker in the wall You don t have to mask or prep the speaker for painting and worries about theft during the final phases of construction are never an issue Low Diffraction MicroPerf Aluminum Grilles PR speakers include aluminum grilles The painted aluminum grille has hundreds of precisely sized perforations creating an acoustically transparent grille Infrared Sensor Mount The speaker baffle has a locator designed for the Niles MS110 MicroSensor a min iature infrared sensor The MS110 installs discreetly behind the aluminum grille and therefore minimizes wall clutter in your home When you want to c
10. ause Niles strives to continuously improve its products Niles reserves the right to change product specifications without notice The technical and other information contained herein is not intended to set forth all technical and other specifications of Niles products DS00279B Introduction The PR or Performance group of in wall loudspeakers offers speakers expressly designed for an optimum bal ance of performance and value They employ high performance components and materials that make them perfectly suited as primary speakers in bedrooms Features and Benefits Talc Filled Polypropylene Woofer with Butyl Rubber Surround and Custom Debris Screens The Niles PR Performance series loud speakers employ a high performance woofer made of vacuum formed poly propylene with talc added for stiffen ing The resulting cone offers low mass good damping and superb musicality Additionally the woofer employs a Butyl Rubber Surround for improved midrange clarity as well as moisture resistance Custom debris screens prevent insulation from coming in contact with the woofer 3 4 Kaladexe Tweeter housed in a Precision Adjustment Mechanism The PR Performance series Kaladexe Tweeter employs DuPont s latest mate rial technology to produce a dome tweet er with exceptional frequency response and low distortion Highs are crystal clear and extended without the harshness often associated with polycarbonate designs The Kaladexe tweeter is h
11. band or orchestra is playing in front of you as you listen to music or you are very conscious of clarity detail and the textures of the individ ual instruments you are a critical listener 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 guide lines to make the process of placement quick and easy Make sure the sound will not be blocked or reflected off of furniture or other objects You should have a direct line of sight with the front of the speaker To determine the Figure 2 best position measure the listening dis tance between the ideal listening position your favorite chair or couch and the wall in which you plan to install the speakers Try to place the speakers so that they are equally distant from your listening spot and at least one half of the listening dis tance apart this maintains a large pleasant stereo image In home theater applica tions 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 com bined music and movie usage stay within the good placement zone for music For example if you are ten feet back from the wall the speakers should be between five and ten fe
12. c tor speaker wire run to free at least 2 of each conductor Figure 1 2 Strip 1 2 of insulation from the end of each conductor See Figure 1 3 To connect the stripped end of one conductor to the black terminal push down on the black terminal lever Insert the stripped end of the conductor into the opening Release the pressure on the lever 4 Repeat 3 with the other conductor and the red terminal 5 Connect the opposite ends of these con ductors to their respective amplifier ter minals Pay attention to the markings on the wire If you are unsure which conductor to insert into which terminal see the section titled Speaker Phase in the owner s manual 6 Repeat these instructions for each speaker you are connecting to the ampli fier 7 Place the speaker baffle in the frame by inserting the tabs at the base of the speaker baffle into the cor responding holes in the frame and pushing the speaker forward until the snaps engage See Figure16 8 IMPORTANT When installing the speakers in the ceiling or if the instal lation is in an earthquake zone it is rec ommended that you utilize the enclosed sheet metal screws to secure the baffle to the frame a Locate the dimples on the front baffle b Place the self tapping sheet metal screw in the dimple and turn it with a screw driver until it cuts through the baffle and anchors securely in the frame See Figure 17 2 Figure 16
13. cks in the opposite direction See Figure 19 3 Pivot the tweeter on both speakers equally by depressing the housing at the arrows until the desired angle is achieved See Figure 20 Installing the Grille Carefully fit the grille into its recess so that it is barely in place Starting with one corner go around the speaker pushing the grille in a little bit each time You should be gentle the aluminum grille can be easily bent out of shape The speaker will have an abso lutely flush appearance when it is properly installed Figure 20 Removal of Speaker and Grille Removing The Speaker If the grille is already installed remove it by using a bent paper clip or the tip of a cork screw and pulling it away from the frame Utilizing two small screwdrivers or two needle nose pliers release the snaps that hold the speaker to the frame Insert the screwdrivers into the holes in the snaps and exert force straight down towards the woofer until the snaps release Once the snaps release the speaker can be tilted away from the frame to be removed Do not attempt to use the frame for leverage as this may damage the surface of the frame See Figure 21 Figure 21 Operation Listening at Higher Volumes It requires more power to achieve a reason able volume of sound in a large room than it does in a small room It is possible even if you are not a teenager to turn the volume so
14. e and speaker placement 1 Drill a 1 8 pilot hole just barely through the wallboard or dry wall 1 2 to 5 8 deep in most homes about an inch below the center of your proposed speaker location an inch to the side if you are mounting the speaker horizon tally BE VERY CAREFUL NOT TO DRILL THROUGH EXISTING WIRES PIPES OR STRUCTURE IF YOU FEEL ANY EXTRA RESISTANCE AS YOU ARE DRILLING STOP Cut a piece of coat hanger equal to the width of the bracket Bend the wire in half creating a right angle Poke the L shaped wire into the pilot hole and turn Figure 12 Figure 11 it in a complete circle If it turns freely repeat the procedure from a hole about an inch above the center of your proposed speaker location See Figure 11 If the wire s movement is obstructed by a pipe or cable fill the hole s with spack le or other patching compound and try another location 2 When determining the final location of the cutout keep in mind that the frame and bracket will extend beyond the cutout Make sure that you do not place the edge of the cutout directly next to a stud Locate the studs using a stud sensor or hand knocking Once you have determined the correct position for the cutout hold the supplied template up to the wall surface Level the template in either the horizontal or the vertical position and mark the wall with a pencil Drill the four corners a with a 1 4 drill bit et E 3 If
15. easier A good technique is to snap a chalk line across the face of the studs or against the bottom of the ceiling joists Then work backward so that you can always see the holes you have already drilled Paying careful attention to this will save you a lot of time later on Pulling the Cable Pull the cable in sections from the stereo to the volume control from the volume control to the speaker Start with the lon gest sections and use left over wire to complete the short sections If you plan to pull many rooms at the same time through a central route walk off the dis tance to each destination add a generous fudge factor for turns and other obstacles then cut off each section so that you have a bundle of wires you can pull at once Whenever you run the wire further than four and one half feet from a hole in a stud or joist open attic space going up walls etc fasten the wire to the joists or studs using cable clamps or appropriately sized wire staples The wire should not have large sags in it nor should it be too tight Try to protect the wire from being stepped on in attics or other unfinished crawl spaces There are guard strips race ways and conduits which can be used to protect the cable Consult the local build ing code for special requirements in your area Concealing Speaker Wire in Existing Walls This is actually a fairly simple task if you restrict your choice of speaker locations and wire routes to t
16. erference or hum on your speaker wires so you can safely run all of them at the same time through the same holes side by side Before you drill any holes mount the speaker brackets in the desired speak er locations and mount p rings or open backed J boxes where the in wall volume controls and stereo equipment will be Safety First Wear gloves safety goggles and head pro tection when drilling Avoid nails they ruin bits and they can create injury Pay particu lar care when using hole hogs and other powerful electric drills the torque of the drill when suddenly stopped by a nail can break the wrist of a strong man Drilling Use a bit that is large enough for the wires you plan to run An auger bit is the pre ferred bit for rough in wiring It will actu ally pull itself through the wood so that the drill motor not you does most of the work You may be drilling a lot of holes so this is an important consideration Always drill the holes in the center of the stud If you have to notch the stud or drill the hole closer than one inch from the edge of the stud protect the wire with a nail plate See Figure 3 When drilling holes in ceiling joists drill in the center of the joists and try to locate the hole near the end of the joist DO NOT drill through a gluelam or any load bearing beam without the direction of your contractor Try to line the holes up perfectly because it makes pulling the wire much
17. et apart See Figure 2 4 Speaker Placement Zone A 10 3 meters 10 3 meters F 5 1 7 meters Speaker Placement Zone t La cp a cp a E E E nt ic ep a e a E E E The Boundary Effect Corners can affect the bass response of the speaker powerfully This is called the boundary effect You will emphasize par ticular bass frequencies and cancel out other bass frequencies when you place speakers close to the wall ceiling bound ary or a corner wall boundary This can make the speaker sound excessively boomy and inaccurate to some listeners while to others it just seems like more bass sound A good rule of thumb is if you always listen to your current pair of speakers with the bass turned up you ll enjoy corner placement If you keep your tone controls at neutral try to keep the speakers at least two or three feet from the boundaries of the room Placement for Varying Listening Positions If you want the freedom to sit anywhere in a room facing any direction and or find that you prefer the all around you sound of some car stereos to a conven tional sound stage facing you consider the speaker placement techniques profes sional installers use in restaurants and bars They place speakers in an array around the listening area so that the music is always surrounding you regard less of the direction you face The ru
18. frame to the installed bracket using the supplied screws Do not over tighten the screws This will distort the frame and the grilles will not fit this is not permanent just loosen the screws and the grille will pop in See Figure 10 Painting the Aluminum Grilles The grille is important to the sound of the PR loudspeakers Do not fill the holes of Figure 9 Figure 10 the grille with paint The grille is construct ed of aluminum with a perfectly even powder coat overall This powder coat is an ideal primer Remove the grilles before painting If you are using spray paint use two thin coats without any primer If you are using a compressor and a spray gun use the finest most dif fuse setting Practice first on some paper if you have no experience painting with spray paint If you are using an applicator or brush and a can of paint thin the paint first You do not want to have to poke hundreds of holes in your beautifully painted grilles on _ a a a h a E cD r En a 3 a E E en a e en cD on r E _ un _ a a3 A h 3 a3 ep en 3 as ep a3 s D 3 ep En m un u a 07 Installation of Brackets Frames and Grilles in Existing Walls IMPORTANT Before you cut into any wall review the sections on running wir
19. he interior walls or ceilings of your home Interior walls in almost all North American residences are hollow so that it is easy to flush mount speakers into them and route new speak er cable around the house What you see when you look at the painted wall board plaster or paneling is only the skin of the wall Behind the skin is the skeleton two by four wood or metal studs running vertically from the floor to the ceiling in walls and two by six or larger joists running horizontally in the ceilings and floors In between the studs and the joists is the space for the wiring and plumbing of your home Exterior walls are different They must insulate the house from the heat and cold outside so they are stuffed with insulation The national building code requires that the hollow wall space in exterior walls be broken by a horizontal stud placed between the vertical studs This fire blocking makes it very difficult to retrofit long lengths of wire In some areas of the country the exterior walls are constructed of solid masonry and have no hollow space for speakers or wires Start by examining all the possible routes you might take to run the speaker wire from the speaker to the volume control and back to the stereo Use a stud sen sor or other device to locate the internal structure of the wall You want to avoid all studs or joists A typical route would be from the speaker location up the inside of the wall to
20. le of thumb is to add one pair of speakers for every 100 to 200 square feet of listening area Curiously this is not so that you can play the music louder but so that you can play it softer When you have only one pair of speakers in a large room you will notice that when the sound is perfect in one part of the room it is too loud near the speakers By placing more than one pair in the room you will avoid these hot spots of loud sound and you will create more sonic ambiance while maintaining clarity and a rich sound everywhere You can make listener position still less critical by using mono rather than stereo This can be difficult to achieve with normal stereo amplifiers However Niles manufactures Systems Integration Amplifiers which enable one room to be wired in stereo while other rooms are wired in mono Consult your local Niles dealer for more information In smaller rooms or rooms that are infre quently used you typically can t justify the expense of more than two speakers Try to bracket the room with the two speakers Diagonal placement is a very effective way to stretch the coverage pat tern of two speakers You can also com promise between direct sound for detail and clarity and reflected sound the ambient or all around you effect By trying to place the speakers so that they create as much reflected sound as pos sible you emphasize the ambient effect They can be up high in the wall or even down
21. low at power outlet height in the ceiling near corners or directed at reflective objects and walls The more reflected sound there is in the room the stronger the ambient effect at low vol umes You should use moderation how ever otherwise the compromise becomes too one sided and at high volumes the sound will be blurred and less distinct Placement for Rear Home Theater Applications In a home theater the goal is to repro duce the experience of a great movie the ater in our homes The biggest difference between the two is the rear or surround speaker array in a commercial theater Here it is not uncommon to see twenty or thirty speakers around the audience This huge array of speakers assures that you will feel completely surrounded by the ambient soundtrack of the movie Film makers try to use the surround soundtrack to envelope you in the envi ronment on screen They will place back ground music rain sounds traffic noise etc on the surround soundtrack In a home with a single pair of speakers it is easy for the jungle sounds to sound like they are in the middle of your head just like headphones A single pair of PR loudspeakers prop erly placed can create a very convincing simulation of an array of speakers If you place them near a hard reflecting surface you can make one pair of speakers sound like several Create as many reflections as possible by mounting the speaker up high in the wall
22. ol all of the functions of your system from the room via the remote pair of speakers Niles makes a number of IR sensors which install in the wall in the ceiling in cabine try on tabletops or even behind the grille of some of your Niles speakers An IR sensor requires that a 2 conductor shielded wire West Penn D291 or equiv alent be home run from each sensor loca tion to the main equipment location This wire is normally run beside the speaker wire at the same time Typically the sen sor is placed in a location that faces your listening position Most remote controls will have an effective line of sight range of 18 to 30 feet 6 10 meters with any Niles sensor placed in a wall ceiling on a cabi net or tabletop However when you place a Niles MS110 MicroSensor behind the perforated aluminum grille of a speaker the effective range is reduced to 9 to 15 feet 3 5 meters Insulating the Wall Cavity For best performance from your speakers fill the wall cavity behind the speaker with fiberglass insulation e g R 19 unbatted insulation Try to keep the same amount of insulation for each speaker particu larly in the same room for consistent bass response TECH TIP Wire size is expressed by its AWG American Wire Gauge number The lower the number the larger the wire i e twelve AWG is physically larger than fourteen AWG speaker Placement Placement for Critical Listening If you like to imagine that the
23. ontrol your equipment you simply point your remote control at the speaker from up to 15 feet 5 meters away Figure 1 Model HD8 Shown New Construction Wings Bracket Frame A Speaker Baffle IR Knockout Installation Considerations Recommended Amplifier Power For satisfactory performance we recom mend an amplifier with a power rating of ten to one hundred watts for the PR5 and ten to one hundred twenty five watts for the PR6 Curiously most speakers are not damaged by large amplifiers but by small amplifiers If your system is playing loud ly 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 the section on operating the speakers for more information about clipping distortion Incorporating a Local Volume Control In a multiroom system there is one indis pensible device for true convenience a local volume control It allows you to adjust the volume of the speakers without leaving the room Plan to wire the system so that each pair of speakers has its own volume control built into the wall think of a volume con trol as a dimmer switch for sound Niles makes a wide range of high perfor mance indoor and outdoor volume con trols They are available in standard or Decora style cover plates just like your light switches and dimme
24. ou are dealing with the unknown because of the structure of your home or with difficult to patch wall materials like plaster lath and plaster faux finishes wallpaper etc be patient A careful study of the potential problems before you start the job will pay off Figure 7 Figure 6 Aa D Da Bs cD m a on _ a a n a E E nt ES 3 a 5 ep en a ep En cD en r _ Installation of Brackets Frames and Grilles in New Construction Stage One Before Drywall is Hung Insulating the Wall Cavity If feasible fill the wall cavity with insula tion at this point Attach the wings to the bracket by snap ping them into the sides of the bracket The wings can be shortened by breaking them along the scored lines if their length will interfere with a corner or eaves You can mount the bracket horizontally or ver tically See Figure 8 Figure 8 Screw one side of the assembled bracket with wings to the stud using one of the supplied screws Level the bracket Screw the other side of the bracket to the stud Two or three screws depending upon the size of the model on each side makes for a very secure installation Attach the wire to the bracket at the indicated wire tie points See Figure 9 Stage Two Before Paint Screw the
25. oused in a preci sion adjustment mechanism which permits the tweeter to be accurately positioned after installation for optimum performance without the diffraction distortion endemic to other speaker brands utilizing traditional pivoting tweeters dens or living rooms as main or surround speakers in home theaters A PR5 PR6 Speaker Kit and the cor responding Bracket Kit 5 or 6 is required to install one pair of PR5 PR6 in wall loudspeakers in either new or existing construction Antiresonant Wave Bracing The PR speaker s baffle design employs specially molded ribs that increase the rigidity of the baffle and raise the resonant frequency so that less out of phase can cellation takes place Equally important the ribs are curved and crossed to further shift vibration modes away from low bass canceling frequencies This keeps bass tones rich and dynamic Front Mounted Bass amp Treble Controls Niles Performance speaker models feature baffle mounted tone controls for Bass and Treble that enable instant fine tuning after the speakers are installed This feature helps to lessen the effects of less than perfect placement or other room acoustics anomalies Snap in Baffle Assembly This proprietary Niles design enables installers to attach Niles loudspeaker assem blies to installed frames without additional hardware or tools Niles Snap in design makes it easy to upgrade Niles speakers after installation without the ha
26. part of the wall space is free of obstruc tions See Figure 5 When you don t have access above or below the wall try to estimate the existing wire and pipe locations from the positions of electrical outlets os and plumbed fixtures on both sides of the wall Take a look at the outside of your house too sometimes conduit vents or drain pipe will be visible that give useful information l Choose the route with the few est potential obstacles If your house is built on a slab or you are wiring between two finished floors look for baseboards which could be removed and replaced with the wire behind them Doorjambs can be removed and often have enough space for speaker wire all the way around the door See Figure 6 Sometimes an under the carpet run is possible there are special flat speaker wires made for under the rug wire runs As a last resort heating and air condition ing vents can be used as wire raceways for plenum rated wire check your local Ae a a e b building codes some municipalities require conduit In traditional wood stud drywall construc tion you can cut the hole for the speaker and utilize the large hole to auger holes across up or down the wall for as far as your drill bit will take you If you have matching paint and take reasonable care in patching you can cut a hatch in the dry wall at each stud run your wire and patch and touch up the wall See Figure7 When y
27. r more information ic cp a cD a E e E E e a ma p L s cD D a Installation Fundamentals Running the Speaker Wire in New Construction If you have doubts about whether you are capable of installing a Niles PR loudspeak er in your walls consult a Niles dealer or professional installer They have special tools techniques and experience to make the impossible possible The installer can provide you with an estimate before any work is done Scheduling and Preparation Plan to schedule the speaker wiring after the electrical wiring is finished That way you can avoid wire routes which could potentially induce hum over the speaker wire The basic rules are e Never run speaker wire through the same hole as an electrical cable e Never run speaker wire into the same J box as electrical cable e Avoid running the speaker wire beside the electrical cable Keep your speaker cable at a distance of at least 18 22 46 56 cm from any electrical power Figure 3 cable Side by side wiring is unavoidable in particular spots in every house just move the speaker wire route away as soon as possible If construction forces a side by side run for more than ten feet install metal conduit or shielded speaker wire Low voltage wires such as door bells intercoms telephone security or television cannot cause int
28. rs Volume con trols are connected in line with the speak Aa D p a cD D a an m m _ a s 5 Da Za er so you must connect the wire from the amplifier to the volume control and then from the volume control to the speaker Speaker Wire Use 2 conductor speaker wire when con necting PR speakers to your receiver or amplifier For most applications we rec ommend you use 16 or 18 gauge stranded wire For wiring runs longer than 80 feet 25 meters we recommend 14 gauge stranded wire When you run wire inside walls special jacketing CL 2 or CL 3 is required to both protect the wire and for fire prevention In some areas conduit is required For a trouble free installa tion low voltage wire such as speaker wire must be run in accordance with the National Electrical Code and any applica ble 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 your 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 con sider the advantages of installing a Niles IR Repeater system You are able to contr
29. s 7 1 8 x 9 7 8 18 1 cm x 25 1 cm Depth Behind Wall 3 1 8 7 9 cm Deep assumes 1 2 drywall Wall Cut Out Dimensions 6 1 4 x 9 15 9 cm x 22 9 cm Wiring Requirements We recommend 16 to 18 gauge stranded for up to 80 feet 14 gauge stranded for up to two hundred feet Connectors accom modate 12 to 18 gauge stranded wire specifications Model PR6 Driver Complement 6 1 2 Talc Filled Polypropylene Woofer with Custom Debris Screen and Butyl Rubber Surround 3 4 Kaladex Tweeter Housed in a Low Diffraction Precision Adjustment Mechanism Design Principle Infinite baffle for large and varying air volumes Recommended Amplifier Power Ten to One Hundred Twenty Five Watts per Channel Nominal Impedance 8 Ohm Frequency Response 60 Hz to 20 000 Hz plus or minus 3dB on axis Dispersion Pattern 90 degrees Horizontally or Vertically plus or minus 5dB Sensitivity 89 decibels for 2 83 volts of Pink Noise measured at 1 meter on axis Overall Exterior Frame Dimensions 8 3 4 x 11 11 16 22 2 cm x 29 7 cm Depth Behind Wall 3 1 8 7 9 cm Deep assumes 1 2 drywall Wall Cut Out Dimensions 7 5 8 x 10 5 8 19 4 cm x 27 0 cm Wiring Requirements We recommend 16 to 18 gauge stranded for up to 80 feet 14 gauge stranded for up to two hundred feet Connectors accom modate 12 to 18 gauge stranded wire a k n
30. so that the ceiling will act as a powerful reflector If you place the speakers near a corner wash the sound down a wall from a ceiling location or mount the speakers as far away as you can from the listening area more reflec tions will occur However all of these placement techniques require that you work your surround sound amplifier chan nels harder If the surround sound system you are using has a small five or ten watt amplifier for the rear speakers stay within five to eight feet of the listening location If you are using a 25 to 50 watt amplifier you can mount the speakers 10 to 15 feet away from the listening location and still achieve reasonably high volume levels Of course the best way to emulate the sound of multiple speakers is to use mul tiple speakers In large or unusually shaped rooms this might be the only way to achieve a good effect If you like to listen to music surround modes which emulate concert hall acoustics more than two sur round speakers will prove extraordinarily effective With Niles PR loudspeakers it is easy to add another pair without affecting the decor of the room However you will need to use a much more powerful ampli fier than that which is 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 a good surround sound system Consult your local Niles dealer fo
31. ssles asso ciated with removal and re installation of traditional designs Snap in baffles make installation of Niles speaker baffles easier and faster than other in wall brands cD Da 20 gt 5 cD n 20 cD m 20 D 5 cD n a BumpBack Woofer Magnet Niles engineers have utilized a unique motor construction enabling far greater throw or voice coil excursion This allows a high level of bass performance to be achieved Moisture Resistant Construction The PR loudspeakers are suitable for use in high moisture environments The driv ers are impervious to moisture the grille is made of powder coated aluminum and all exposed hardware is made of stain less steel However the speakers are not waterproof and direct contact with water should be avoided Absolutely Flush to the Wall Appearance The unique mounting system of the PR loudspeakers powerfully clamps the frame to the bracket sandwiching the wall mate rial between them Because the clamping action is totally uniform around the frame there are no shadows or gaps between the wall and the frame Additionally the Niles mounting system is carefully optimized to stiffen the surrounding drywall and pre vent it from resonating You hear only the music not the drywall Easy Retrofit Installation in your Existing Home Designed for ease of inst
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