INSTALLATION & OPERATION GUIDE M O D E L S CM5PR PERFORMANCE CM6PR PERFORMANCE 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.
Limited Warranty Thank you for choosing a Performance Ceiling Mount Loudspeaker from Niles. With proper installation and operation, you'll enjoy years of trouble-free use. 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. Niles manufactures the industry's most complete line of custom installation components and accessories for audio/video systems.
Introduction Model Purchased___________________________________ _________________________________________________ The PR or Performance group of ceiling mount loudspeakers offers speakers expressly designed for an optimum balance of performance and value.
Easy Installation The CM5PR and CM6PR employ a bracketless mounting system in existing ceilings. Simply cut a hole in the mounting surface, remove the grille from the speaker, connect the wires and place the speaker in the hole. Then tighten the four mounting “dogs” via the front panel screws. The dogs first swivel 90°, then clamp the speaker frame to the drywall as you tighten the screws.
Recommended Amplifier Power For satisfactory performance, we recommend an amplifier with a power rating of 10 to 100 watts for the CM5PR and 10 to 125 watts for the CM6PR. 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. A large amplifier will play at the same volume without distorting.
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. They are available in Standard or Decora® style cover plates (just like your light switches and dimmers).
Speaker Placement 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.
ent or “all around you” effect). The speakers can be placed near corners to create more reflected sound. By directing the tweeters to point away from the listener, so they create as much reflected sound as possible, you emphasize the ambient effect. The more reflected sound there is in the room the stronger the ambient effect at low volumes. You should use moderation, however, otherwise the compromise becomes too one sided and at high volumes, the sound will be blurred and less distinct.
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. Separate the speaker wire so that at least two inches of each conductor are free. 7.
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.
Insulating the Wall Cavity If feasible, fill the wall 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.
Volume Control Location Stereo Location Figure 8 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. If you have access to an attic or basement space you can quickly see which part of the wall space is free of obstructions (See Figure 9).
