INSTALLATION & OPERATION GUIDE M O D E L S CM5HD HIGH DEFINITION CM6HD HIGH DEFINITION CM8HD HIGH DEFINITION ® B L E N D I N G A N D A H I G H F I D E L I T Y RC H I T E C T U R E ®
Congratulations! Thank you for choosing a High Definition Ceiling Mount 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. For a free full line catalog write: Niles, Catalog Request, P.O.
Niles Audio Corporation ("NILES") warrants its loudspeaker products to the original purchaser to be free of manufacturing defects in material and workmanship for a period of five years from date of purchase. This Warranty is subject to the following additional conditions and limitations.
WARRANTY REGISTRATION CARD Model Purchased___________________________________ _________________________________________________ Serial Number____________________________________________________________________________________ Dealer Name and Location________________________________________________________________________ __________________________________________________________________________________________________ ❑ Dr. ❑ Miss ❑ Mr. ❑ Mrs. ❑ Ms.
Features and Benefits Injection Molded TCC Woofer with Butyl Rubber Surround The CM High Definition series loudspeakers employ a newly developed cone material that combines injection molded polypropylene with talc, carbon and ceramic stiffening agents. The result is a cone that offers extreme stiffness and light weight for accurate, dynamic response.
Features and Benefits Installer Selectable Acoustic Fine Tuning Installers can select to de-emphasize the bass or treble by 2dB to accommodate reflective surfaces and corner loading. This selection is accomplished via bafflemounted controls that are accessible after the speaker has been installed. MicroPerf™ Grilles The CM5HD, CM6HD and CM8HD employ Niles exclusive MicroPerf™ grille construction.
PLEASE FILL OUT THE WARRANTY REGISTRATION CARD ON THE REVERSE SIDE, DETACH, AND MAIL TO: DETACH HERE Niles Audio Corporation Warranty Registration Dept. P.O.
Specifications Specifications CM8HD Driver Compliment 8" injection-molded TCC (talc, carbon and ceramic filled) with rubber surround 1" fluid-cooled ultra-wide dispersion tri-laminate Teteron tweeter in a custom pivoting coaxial enclosure Recommended Amplifier Power 10 to 150 watts per channel Nominal Impedance 4 or 8 ohm selectable Frequency Response 40Hz to 21kHz, +/- 3dB (on axis) Tweeter Adjustment Up to 20° pivot angle Sensitivity 90dB for 2.
Recommended Amplifier Power For satisfactory performance, we recommend an amplifier with a power rating of 10 to 100 watts for the CM5HD; 10 to 125 watts for the CM6HD and 10 to 150 watts for the CM8HD. Curiously, most speakers are not damaged by large amplifiers but by small amplifiers. If your system is playing loudly, a small amplifier will run out of power very quickly. When an amplifier runs out of power it creates damaging “clipping” distortion.
Installation Considerations In a multiroom system there is one indispensible device for true convenience—a local volume control. It enables 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 control as a dimmer switch for sound). Niles makes a wide range of high performance indoor and outdoor volume controls.
CM5HD CM6HD Driver Compliment Driver Compliment 5-1/4" injection-molded TCC (talc, carbon and ceramic filled) with rubber surround 6-1/2" injection-molded TCC (talc, carbon and ceramic filled) with rubber surround 1" fluid-cooled ultra-wide dispersion tri-laminate Teteron tweeter in a custom pivoting coaxial enclosure 1" fluid-cooled ultra-wide dispersion tri-laminate Teteron tweeter in a custom pivoting coaxial enclosure Recommended Amplifier Power Recommended Amplifier Power 10 to 100 watts per
Operations Operation Listening at Higher Volumes It requires more power to achieve a reasonable 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 high that the amplifier runs out of power. This creates “clipping” distortion. Clipping distortion makes treble sound very harsh and unmusical.
Although the CM5HD, CM6HD and CM8HD have extensive ability to compensate for unusual placements with their unique pivoting tweeters and acoustic finetuning switches; placement is still the primary tool for satisfying your particular listening needs. In the following section, we discuss how speakers should be placed and how tweeters should be directed and how the acoustic fine-tuning switches should be set for different purposes.
Speaker Placement 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 conventional “sound stage” facing you, consider the speaker placement techniques professional installers use in restaurants and bars. They place speakers in an array around the listening area, so that the music is always surrounding you, regardless of the direction you face.
Figure 17 Tightening the mounting “dogs” 9. Setting the Bass and Treble cut switches. Listen to a well-recorded piece of music at the user’s favorite listening position. a) Listen for bass boominess, particularly when the speaker is placed near a corner. Use the -2dB Bass cut to correct. b) Listen for treble harshness or ringing, particularly when the speakers are placed in a room without carpet/ Use the -2dB Treble cut switch to correct. 10.Install the grille into the speaker.
Final Installation in New or Existing Construction 15 Final Installation in New or Existing Construction 1. If it is possible to lay a batt of insulation into the ceiling cavity do so. Remember to use equal amounts of insulation for each speaker. 2. Check the position of the Impedance Jumper on the crossover PC board. Choose the 4 ohm position if you are using an amplifier capable of drawing a 4 ohm load and you have only one pair of speakers connected. Otherwise, use the 8 ohm position (See Figure 15). 3.
In large or unusually shaped rooms, using multiple speakers might be the only way to achieve a good effect. 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 surround speakers will prove extraordinarily effective (See Figure 6). With Niles CM5HD, CM6HD and CM8HD loudspeakers it is easy to add another pair without affecting the decor of the room.
Installation Fundamentals Installation Fundamentals Running the Speaker Wire in New Construction If you have doubts about whether you are capable of installing a Niles ceiling mount loudspeakers, 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.
Figure 12 IMPORTANT: Before you cut into any wall, review the sections on running wire and speaker placement. 1. When determining the location of the speaker cutout keep in mind that the mounting dogs will extend 3/4" beyond the cutout. make sure that you do not place the edge of the cutout directly next to a ceiling joist. Locate the joists using a stud sensor or hand-knocking. 2.
Installation in New Construction Installation in New Construction Insulating the Ceiling Cavity If feasible, fill the ceiling cavity with insulation at this point. Mounting The New Construction Bracket The hole saving bracket enables a faster and cleaner final installation of the speaker. It forces the drywall installer to cut out the speaker hole for you and provides wire ties for the speaker wire, reducing the risks of accidental loss or movement of the wire.
when you look at the painted wall board, plaster, or paneling is only the skin of the wall. Behind the skin is the skeleton; twoby-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.
Installation Fundamentals Speaker Location Volume Control Location Stereo Location Figure 6 allel to power cables at least three 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 shining a penlight into the wall.
Figure 8 Installation Fundamentals In traditional wood stud/drywall construction you should first cut the hole for the speaker and utilize the large hole to auger across the (through the ceiling joists) for as far as your drill bit will take you. Sometimes, you will need to use the “notching” technique to reach areas your drill bit won’t reach or to turn corners (e.g. to go down the wall when there is not an accessible attic). Don’t make an irregular hole in the drywall.
www.nilesaudio.com Niles Audio Corporation 12331 S.W. 130 Street Miami, Florida 33186 Tel: (305) 238-4373 Fax: (305) 238-0185 Printed in Taiwan © 2001 Niles Audio Corporation. All Rights Reserved. Niles, the Niles logo, and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation. MicroPerf is a trademark of Niles Audio Corporation. All other trademarks are the property of their respective owners.
