Niles Audio IW2550LCR Speaker System User Manual
Contents
1. Pod rotated tweeter up 2 j Not Greater than 24 Not Greater than 24 IW2770LCR IW2770LCR Pod rotated tweeter up IW2770LCR Figure 3 Figure 4 Recommended center channel placement behind a perforated projection screen Loudspeaker may be installed vertically or horizontally Tweeter Midrange Pod should be positioned as shown FINISHING THE INSTALLATION CONNECTING amp INSTALLING THE LOUDSPEAKER 1 Remove the magnetic grille by starting at a corner and gently pulling the grille outwards as you work around the edges 2 At each loudspeaker route the wire through the provided channel to the input connectors then 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 3 On each set of loudspeaker connectors press down the spring loaded connector insert the appropriate conductor and then release the connector as shown in Figure 5 Gently tug on the loudspeaker wire to make sure it is held in place If not repeat this procedure until it is 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 9 4 Connect the other end of each loudspeaker wire to the receiver or amplifier in the same way If you are unsure of wire polarit2. surfaces and the paint mask has been removed 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 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 CONTINUED ON NEXT PAGE 10 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 1 not right and you cannot see any markings on the wire try this simple test 1 Stand halfway between the loudspeakers 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 connections on one amplifier channel only 5 Repeat the listening test with the same volume control setting When the sound has richer bass and is slightly louder the loudspe
3. 9 7 8 x 9 3 8 50 5 cm x 23 8 cm Depth From Front of Wall 3 7 8 9 8 cm Wiring Requirements We recommend using 16 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 SPECIFICATIONS IW2670LCR Recommended Amplifier Power 15 to 125 watts per channel Nominal Impedance 6 ohm nominal 3 2 ohm minimum Frequency Response 70Hz to 20 2 3 dB Sensitivity 90 dB with 2 83 V pink noise input measured at 1 meter on axis Frame Dimensions 25 3 4 12 65 4 cm x 30 5 Hole Cut Out Dimensions 24 1 4 x 10 1 2 61 6 cm x 26 7 cm Depth From Front of Wall 3 7 8 9 8 cm Wiring Requirements We recommend using 16 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 IW2770LCR Recommended Amplifier Power 15 to 125 watts per channel Nominal Impedance 6 ohm nominal 3 2 ohm minimum Frequency Response 70Hz to 20 2 3 dB Sensitivity 91 dB with 2 83 V pink noise input measured at 1 meter on axis Frame Dimensions 25 3 4 12 65 4 cm x 30 5 cm Hole Cut Out Dimensions 24 1 4 x 10 1 2 61 6 cm x 26 7 cm Depth From Front of Wall 3 7 8 9 8 cm Wiring Requirements We recommend using 16 gauge loudspeaker wire for runs up to 80 feet and 14 gauge loudspeaker wire for runs up to 200 feet T
4. OMMEND USING A STAGEFRONT FX LOUDSPEAKER PLACING THE STAGEFRONT LCR AS THE FRONT LEFT AND RIGHT LOUDSPEAKERS In a home theater the intelligibility of dialog and action reproduced by the front loudspeakers is paramount The position of each loudspeaker 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 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 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 2 Louds
5. R IW2650LCR Stock Number Stock Number FG01330 FG01329 IW2670LCR IW2770LCR Stock Number Stock Number FG01327 FG01326 FEATURES AND BENEFITS DUAL TCC TALC CARBON CERAMIC FILLED WOOFERS IW2550LCR amp IW2650LCR models only Extremely rigid to reduce breakup lower distortion and provide enhanced bass response DUAL INTERLACED CARBON FIBER WOOFERS WITH BUTYL RUBBER SURROUNDS IW2670LCR amp IW2770LCR models only Provide increased sound pressure levels and sustained high power output FLUID COOLED TETERON DOME MIDRANGES IW2670LCR amp IW2770LCR models only Produce smooth detailed dialog FLUID COOLED TETERON DOME TWEETERS Deliver ultra wide dispersion and silky smooth response ADJUSTABLE CAST ALUMINUM FULLY ENCLOSED DISPERSION CONTROLLING MIDRANGE TWEETER POD W2670LCR amp IW2770LCR models only Enables precise imaging regardless of placement and accommodates vertical or horizontal installations VARIABLE MIDRANGE AND TREBLE CONTROLS IW2670LCR amp IW2770LCR models only Enables fine tuning after installation CROSS BRACED PORTED CABINETS WITH INTEGRATED FRAME DESIGN Fit standard 2x4 construction and are easily retrofitted EPOXY COATED MICROPERF MAGNETIC GRILLE Provides an elegant yet unobtrusive appearance DOLBY DIGITAL READY StageFront Home Theater Solutions loudspeakers are expressly designed for Superior sonic quality in home theater applications All m
6. STAGE FRONT HOME THEATER SOLUTION Se INSTALLATION GUIDE IW2550LCR IW2650LCR IW2670LCR IW2770LCR PROFESSIONAL QUALITY IN WALL ENCLOSED LEFT CENTER RIGHT CHANNEL LOUDSPEAKERS CONGRATULATIONS Thank you for choosing a superior StageFront Home Theater Solutions In Wall LCR 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 Features and Benefits 2 Installation Considerations 3 Finishing the Installation 8 Operation 11 Specifications 12 INTRODUCTION StageFront Home Theater Solutions loudspeakers are expressly designed for Superior sonic quality in home theater applications Each model employs advanced technology components that extract the subtle nuances in recorded music or the thunderous action sound in a movie Models ending in LCR are intended primarily for front channel left center right placement or wherever a monopole design is required Models that end in FX are designed for special effect placement StageFront models are the perfect choice wherever quality of sound is the most important consideration IW2550LC
7. akers are working together or in phase ACOUSTIC FINE TUNING Each StageFront 70 Series In Wall LCR loudspeaker features TREBLE and MIDRANGE variable controls located on the front for acoustic fine tuning after installation as shown in Figure 7 Adjust these controls as follows If you desire more dialog presence increase the amount of midrange frequencies produced by turning the MIDRANGE control clockwise If a StageFront LCR model is placed in a room with highly reflective surfaces like glass or tile you may wish to decrease the amount of high frequencies produced by turning the TREBLE control counter clockwise a Figure 7 The W2670LCR or 2770 5 TREBLE and MIDRANGE controls INSTALLING THE GRILLE Starting at one corner carefully align the magnetic grille into the frame and slowly allow the magnets to attach Work around the grille edge ensuring that the grille stays within the frame When properly installed the edges of the grille will be flush appearance with the frame OPERATION LISTENING AT HIGHER VOLUMES Achieving a reasonable volume of sound in a large room requires more amplifier power than it does 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
8. 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 Clean the StageFront loudspeaker with a dampened soft cloth or paper towel If the loudspeaker is mounted high up on a wall or ceiling use a broom to gently brush it off 11 SPECIFICATIONS 12 IW2550LCR Recommended Amplifier Power 15 to 125 watts per channel Nominal Impedance 6 ohm nominal 3 2 ohm minimum Frequency Response 80Hz to 20 2 3 dB Sensitivity 88 dB with 2 83 V pink noise input measured at 1 meter on axis Frame Dimensions 21 1 2 x 11 54 6 cm x 27 9 cm Hole Cut Out Dimensions 19 7 8 x 9 3 8 50 5 cm x 23 8 cm Depth From Front of Wall 3 7 8 9 8 cm Wiring Requirements We recommend using 16 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 IW2650LCR Recommended Amplifier Power 15 to 125 watts per channel Nominal Impedance 6 ohm nominal 3 2 ohm minimum Frequency Response 70Hz to 20 2 3 dB Sensitivity 89 dB with 2 83 V pink noise input measured at 1 meter on axis Frame Dimensions 21 1 2 x 11 54 6 cm x 27 9 cm Hole Cut Out Dimensions 1
9. ful amplifier will play at the same volume without distorting See OPERATION on page 11 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 gauge wire For wiring runs longer than 80 feet we recommend 14 gauge wire The spring loaded terminals 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 to meet local electrical and fire codes 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 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 lt example 12 AWG is physically larger than 14 AWG LOUDSPEAKER PLACEMENT NOTE THE STAGEFRONT LCR LOUDSPEAKERS ARE DESIGNED FOR USE IN FRONT LEFT CENTER OR RIGHT CHANNEL APPLICATIONS FOR EFFECT CHANNEL NEEDS WE REC
10. he connectors will accommodate 12 to 22 gauge wire 13 EN GIN EE RE D B Y NILES NILES AUDIO CORPORATION 12331 SW 130 Street Miami FL 33186 1 800 BUY HIFI 305 238 4373 www nilesaudio com 2008 Niles Audio Corporation All Rights Reserved Niles the Niles logo and StageFront Home Theater Solutions are registered trademarks of Niles Audio Corporation All other trademarks are the property of their respective owners 0500509
11. nceling 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 THE STAGEFRONT LCR 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 In a typical installation place the loudspeaker horizontally directly above or below the television or projection screen Try to ensure that the loudspeaker is not placed too high relative to the left and right loudspeaker as shown in Figure 3 IW2670LCR and IW2770LCR feature a midrange tweeter pod that be rotated to accommodate horizontal installations If you mount one of these models horizontally please remove the screws that hold this pod in place rotate the pod ninety degrees so that the tweeter is above the midrange and reinstall the screws to reattach the pod to the loudspeaker as shown in Figure 4 IW2770LCR Optional Placement Above TV
12. odels exceed the specifications set forth by Dolby Laboratories for the accurate reproduction of Dolby Digital Encoded Sources INSTALLATION CONSIDERATIONS Loudspeaker Baffle Mounting Screws Dogs swivel 90 erea TE Figure 1 Mounting an IW2770LCR vertically into a wall TOOLS AND PRECAUTIONS We recommend using the following tools to install an In Wall StageFront 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 CONTINUED ON NEXT PAGE INSTALLATION CONSIDERATIONS CONTINUED 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 an amplifier with a power rating of 15 to 125 watts 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 power
13. peaker fA Placement 2 Critical Listening Position Plasma TV alle gt Figure 2 Recommended ae Ne loudspeaker placement for f front left and right channels CONTINUED ON NEXT PAGE INSTALLATION CONSIDERATIONS CONTINUED As for placement height place front left and right loudspeakers 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 page 7 If the StageFront LCR loudspeaker is being installed in existing construction please use the included cardboard template to mark your installation location Check for proper clearance within studs or any other obstructions before cutting the speaker opening If you are unsure of the correct installation techniques please consult your authorized Niles Audio dealer NOTE DO NOT PLACE ANY STAGEFRONT LCR OR FX LOUDSPEAKERS TOO CLOSE TO A DIRECT VIEW CRT 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 loudspeaker in a corner can powertully 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 ca
14. y see the next section CHECKING LOUDSPEAKER PHASE on page 9 5 Check that loudspeaker is level and then tighten the eight large screws using a 2 Phillips bit This should pull the frame and mounting dog together sandwiching the drywall so that the frame 1 absolutely flush with the wall surface There should be no gaps between the wall and the frame See Figure 6 6 Remove cardboard paint mask template from the box and keep for future potential use 7 Turn on the home theater receiver and calibrate all loudspeakers in the system according to the receiver manufacturer s instructions IMPORTANT DO NOT OVER TIGHTEN THE SCREWS OVER TIGHTENING THEM MAY MAKE THE GRILLE DIFFICULT TO INSTALL Figure 5 Connecting a loudspeaker wire to the terminals Rear View Figure 6 Installing unit into a wall PAINTING THE GRILLE AND FRAME Each StageFront FX and LCR frame and grille may be painted without the need for primer For best results when painting the grille use a spray gun or airless sprayer thin the paint to prevent clogging of the grille holes and apply several light coats instead of one heavy one 1 Install loudspeaker into wall 2 Carefully peel adhesive covering strips off of paint mask and align over magnets on loudspeaker baffle Gently press into place 3 Paint the frame of the loudspeaker 4 Paint the grille separately from the loudspeaker frame 5 Reinstall grille after paint dries on all
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