Niles Audio CM950SUB series User's Manual
Contents
1. INSTALLATION GUIDE FOR USE IN HOME AUDIO OR THEATER SYSTEMS HIGH PERFORMANCE CEILING MOUNTED PASSIVE SUBWOOFER M900SUB SERIES SUBWOOFER CM9OOSUB SERIES CONGRATULATIONS Thank you for choosing a CM900 series ceiling mounted passive subwoofer 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 SPECIFICATIONS CM950SUB e Recommended Amplifier Power 10 to 150 watts per channel e Nominal Impedance 6 ohm e Frequency Response 33Hz 140Hz 4dB e Sensitivity 90 dB with 2 83 V pink noise input measured at 1 meter on axis e Frame Dimensions 12 3 4 inches e Hole Cut Out Dimensions 11 1 4 inches e Depth Behind Ceiling 6 5 8 inches e Wiring Requirements We recommend using 16 gauge subwoofer wire for runs up to 80 feet and 14 gauge subwoofer wire for runs up to 200 feet The connectors will accommodate 12 to 22 gauge wire CM96OSUB e Recommended Amplifier Power 10 to 150 watts per channel e Nominal Impedance 6 ohm e Frequency Response 30Hz 140Hz 4dB e Sensitivity 91 dB with 2 83 V pink noise input measured at 1 meter on axis e Frame Dimensions 12 3 4 inches e Hole Cut Out Dimensions 11 1 4 inches e Depth Behind Ceiling 6 52. 8 inches e Wiring Requirements We recommend using 16 gauge subwoofer wire for runs up to 80 feet and 14 gauge subwoofer wire for runs up to 200 feet The connectors will accommodate 12 to 22 gauge wire INSTALLATION CONSIDERATIONS We recommend using the following tools and material to install your Niles CM900 series subwoofer e A minimum of two runs of 16 gauge two conductor subwoofer wire or one run of the same size four conductor subwoofer wire e Electric drill with 1 4 and 1 2 inch drill bits and a 1 inch flat drill bit for drilling through studs e Rubber gloves and protective eyewear e Keyhole or drywall saw e Phillips screwdriver set e Wire stripper e Stud finder e Cable ties e Stiff wire fish tape or glow rods for routing cables e Pencil Before starting the installation please observe the following precautions e Turn off all system power before making any connections e Always wear protective eyewear when using tools e Make sure hands are clean before installation e Wear gloves when working with fiberglass insulation RUNNING WIRES IN WALLS OR CEILINGS When running subwoofer 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 subwoofer wire must be run in accordance with the National Electrical Code and any applicable provisions of the
3. loudspeakers without adding more amplifier channels Niles manufactures a wide variety of volume controls and other accessories that can suit virtually any of your needs Receiver Amplifier Y am LOWPASS 1 00Hz 140Hz Y H Left Right Subwoofer Left amp Right Inputs Subwoofer Right Output Master Subwoofer Volume Control Figure 1 1 Subwoofer and 2 satellite loudspeaker using one master volume control The CM900 series subwoofers feature a separate frame assembly which installs with four bh clamps or mounting dogs which hold the frame in place The dogs are tightened via four front baffle screws Tighten the dogs by turning the screws clockwise DO NOT OVER TIGHTEN THESE SCREWS Over tightening the clamps may make the grille difficult to install NOTE THE SCREWS WILL TURN EASIER IF YOU PRIME THEM FIRST BEFORE INSTALLING EACH SUBWOOFER TURN THE SCREWS IN AND THEN TURN THEM BACK OUT TO THEIR ORIGINAL POSITIONS 2 At each subwoofer location route the wire through the installed frame then separate the subwoofer wire so that at least 2 inches of each conductor are free Strip away 1 4 inch of insulation from each subwoofer wire 3 On each set of subwoofer connectors press down the spring loaded connector insert the appropriate conductor and then release the connector Gently tug on the subwoofer wire to make sure it is held in place If not repeat this proce
4. dure until it is See Figure 2 NOTE OBSERVE CORRECT POLARITY POSITIVE GOES TO THE RED POST AND NEGATIVE GOES TO THE BLACK POST 4 Holding the subwoofer in the palm of your hand insert it into the frame and twist clockwise using the two molded tabs This will lock it into the frame See Figure 3 5 Connect the other end of each subwoofer wire to the receiver or amplifier in the same way 6 Adjust high pass and low pass crossover switches if desired 7 Install grille The flush mount MicroPerf metal grilles can be painted to blend with the surrounding decor 8 Remove cardboard paint mask template from the box and keep for future potential use 9 Turn on the receiver or amplifier and test all subwoofers in the system IMPORTANT DO NOT OVER TIGHTEN THE SCREWS OVER TIGHTENING THEM MAY MAKE THE GRILLE DIFFICULT TO INSTALL PAINTING THE GRILLE AND FRAME Each CM900 series subwoofer frame and flush mount metal 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 e Install subwoofer frame into ceiling e Install subwoofer into frame after the paint or wall is dry e Paint the frame of the subwoofer e Install grille after paint is dry e Paint the grille separately from the subwoofer frame Figure 3 Installing the subwo
5. 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 SELECTING THE NUMBER AND LOCATION FOR YOUR SUBWOOFER The CM900 series passive subwoofers are designed to be installed in any standard ceiling There are two considerations for placing the subwoofer ease of running the cable to the desired location and the effect that placement may have on performance Installing the subwoofer in a corner position will enhance the perceived bass output to some listeners but may also produce a boomy sound INSTALLING WITH SATELLITE SUBWOOFER A concealed CM900 series subwoofer installation allows you to enjoy your entertainment system with full range sound even if your satellite subwoofers are small When used with satellite subwoofers that have substantial bass of their own the CM900 series subwoofer will augment the bass performance A typical installation is illustrated below It is possible to control the volume of the sound of both the subwoofer and the satellite subwoofers simultaneously The volume control is connected in line with the subwoofer An example of wiring an area that has 1 subwoofer and 2 loudspeakers installed with a master volume control is shown in Figure 1 In addition to controlling the volume of the subwoofers these controls allow the addition of added
6. ofer NILES BLENDING a e FIDELITY AND RCHITECTURE Niles Audio Corporation 12331 S W 130 Street Miami Florida 33186 305 238 4373 Fax 305 238 0185 www nilesaudio com 2006 Niles Audio Corporation All rights reserved Niles and the Niles logos are registered trademarks of Niles Audio Corporation All other trademarks are the property of their respective owners DS00541A
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