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Niles Audio CM8HD - page 1
B LENDING H IGH F IDELITY AND A R CHITE CTURE ® INST ALLA TION & OPERA TION GUIDE ® MODEL S HIGH DEFI NITION H IGH DEFI NITION H I GH DEF I NITI ON CM 5 HD CM 6 HD CM 8 HD ...
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Niles Audio CM8HD - page 2
Congr at ulations! 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 com- ponents and accessories for audio/video systems. For a free full line catalog wri ...
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Niles Audio CM8HD - page 3
Limit ed Warr anty 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. The Warranty is void and inappli ...
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Niles Audio CM8HD - page 4
DETACH HERE AND RETURN TO: Niles Audio Corporation Warranty Registration Dept. P .O. Box 160818 Miami, Florida 3 31 16 - 0818 M o d e l P u r c h a s e d __________________ ____________ _____ ________________ _______ _______ ___________________ Serial Number_ _ _ _ _ _ _ _ _ _ __ _ _____________ _______ _________________________ _______ ___________ ...
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Niles Audio CM8HD - page 5
2 F ea t ur es and Benefits Intr oduction Fea tur es and Benefit s Injection Molded TCC Woofer with Butyl Rubber Surround The CM High Definition series loudspeak- ers employ a newly developed cone mate- rial that combines injection molded polypropylene with talc, carbon and ceramic stiffening agents. The result is a cone that offers extreme stiffne ...
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Niles Audio CM8HD - page 6
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 baffle- mounted controls that are accessible after the speaker has been installed. MicroPerf ™ Grilles The CM5HD, CM6HD and CM8HD employ Niles exclusive ...
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Niles Audio CM8HD - page 7
PLEASE FILL OUT THE W ARRANTY REGISTRA TION C ARD ON THE REVERSE SIDE, DET A CH, AND MAIL T O: Niles Audio Corpor ation W arr anty Registr ation Dept. P .O. Box 1 608 1 8 Miami, Florida 33 1 1 6- 08 1 8 DETACH HERE ...
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Niles Audio CM8HD - page 8
19 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 1 0 to 1 50 watts per channel Nominal Impedance 4 or 8 ohm selectable Frequency Respo ...
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Niles Audio CM8HD - page 9
Recommended A mplifier Power For satisfactory performance, we recom- mend 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 ampli- fiers but by small amplifiers. If your system is playing loudly, a small amplifier will ...
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Niles Audio CM8HD - page 10
In a multiroom system there is one indis- pensible 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 con- trol as a dimmer switch for sound). Nile ...
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Niles Audio CM8HD - page 11
18 Specifications Specifications CM5HD Driver Compliment 5-1/4" 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 1 0 to 1 00 watts per channel Nominal Impedance 4 or 8 ohm selecta ...
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Niles Audio CM8HD - page 12
17 Oper a tions Oper ation 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 high that the amplifier runs out of power. This creates “clipping” distortion. Clipping distortion makes trebl ...
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Niles Audio CM8HD - page 13
6 Although the CM5HD, CM6HD and CM8HD have extensive ability to compen- sate for unusual placements with their unique pivoting tweeters and acoustic fine- tuning switches; placement is still the pri- mary tool for satisfying your particular lis- tening needs. In the following section, we discuss how speakers should be placed and how tweeters should ...
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Niles Audio CM8HD - page 14
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 profession- al installers use in restaurants and bars. They place speakers in an array ar ...
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Niles Audio CM8HD - page 15
9. Setting the Bass and Treble cut switch- es. 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 ne ar a c orn er . Use the -2dB Bass cut to correct. b) Listen for treble harshness or ringing, particularly when the speakers are placed in a room ...
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Niles Audio CM8HD - page 16
Final Ins talla tion in Ne w or Existing Constr uction 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 ...
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Niles Audio CM8HD - page 17
However, as you move the speaker far- ther away from the listener, both the reflected and the direct sound will dissi- pate, requiring more power from your surround sound amplifier channels. 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 locati ...
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Niles Audio CM8HD - page 18
Inst allation Fundamen tals 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 estim ...
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Niles Audio CM8HD - page 19
Inst allation in Existing Constr uction 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 ceil ...
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Niles Audio CM8HD - page 20
Inst allation in Ne w Constr uction Insulating the Ceiling Cavity If feasible, fill the ceiling cavity with insu- lation at this point . Mounting The New Construction Bracket The hole saving bracket enables a faster and cleaner final installation of the speak- er. It forces the drywall installer to cut out the speaker hole for you and provides wire ...
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Niles Audio CM8HD - page 21
of your contractor. Try to line the holes up perfectly, because it makes pulling the wire much 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 l ...
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Niles Audio CM8HD - page 22
allel to power cables at least three feet away. T o 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, remov - ing the cover plate and switch or recepta - cle, and shining a penlight into the wall. If you have access to an attic or basement spac ...
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Niles Audio CM8HD - page 23
In traditional wood stud / drywall construc- tion 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 g ...
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Niles Audio CM8HD - page 24
© 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 o ther trad emark s are the prope rty of their respective owners. Because we constantly strive to improve our products ...
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