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cleanly if there is an unseen obstruction
behind the wall. BE VERY CAREFUL
NOT TO SAW THROUGH EXISTING
WIRES, PIPES, OR STRUCTURE. IF
YOU FEEL EXTRA RESISTANCE AS
YOU ARE CUTTING, STOP.

6. If you are cutting into a plaster ceiling,

use masking tape to outline your pen-
ciled circle and use a razor to score the
plaster down to the lath beneath. Then
use a chisel to remove all of the plaster
within the taped outline. To actually cut
the lathe, two methods are used profes-
sionally; sawing with a metal cutting
blade on a sabre saw is the quickest
and the 

riskiest

. Sawing a lathe with a

sabre saw can easily vibrate plaster off
the ceiling in a completely distant loca-
tion creating more patchwork. If you
have the patience, use a pair of tin snips
to slowly nip away at the lath instead.
There is little risk with this method, it is
just time consuming.

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. Separate the speaker wire so that at least

two inches of each conductor are free.

4. Open the no-strip terminal by applying

pressure to the red and black levers until
an audible “click” is heard.

5. Insert one unstripped wire fully into the

black and one into the red terminal. Pay
attention to the markings on the wire.
Each speaker must be connected to the
amplifier in the same way. If unsure,
see “Speaker Phase” located on the fol-
lowing page. Squeeze the red and black
levers until they click signifying that
they have locked into the wire. Check
to make sure that the knife assembly
inside the no strip connector has prop-
erly pierced the wire 

(See Figure 16)

.

6. Insert the no strip terminal into the 

corresponding socket on the rear of
the speaker. Push it down until it locks
in place. The terminal will only fit in
the socket in one direction. If the ter-
minal does not properly seat, reverse
the terminal

7. On both models, there are four clamps

or mounting “dogs” which hold each
speaker in place. The dogs are tight-
ened via four front-baffle screws. To

15

Final Ins

talla
tion in Ne

w or Exis

ting Cons

tr

uc

tion

Figure 16 

No-Strip Speaker Wire Terminal.

Figure 15 

Setting the Impedance Jumper.

Summary of Contents for CM5AT

Page 1: ...N D I N G H I G H F I D E L I T Y A N D A R C H I T E C T U R E I N S T A L L A T I O N O P E R A T I O N G U I D E M O D E L S ADVANCED TECHNOLOGY CM5AT ADVANCED TECHNOLOGY CM6AT ADVANCED TECHNOLOGY...

Page 2: ...cessories for audio video systems For a free full line catalog write Niles Catalog Request P O Box 160818 Miami Florida 33116 0818 TABLE OF CONTENTS INTRODUCTION 2 FEATURES AND BENEFITS 2 INSTALLATION...

Page 3: ...e back of Niles speakers resulting in positive in phase connections every time Moisture and UV Resistant Construction The CM5AT CM6AT and CM8AT loud speakers are suitable for use in high mois ture env...

Page 4: ...can also be painted to blend seem lessly with the surrounding decor Easy Installation The CM5AT CM6AT and CM8AT employ a bracketless mounting system in existing ceilings Simply cut a hole in the mount...

Page 5: ...a hole saver when drywall has not been applied It is not necessary when retrofitting to existing ceilings Knockout wire tie allows the wire to be secured to the bracket throughout the new constructio...

Page 6: ...ment Incorporating Remote Control If your stereo system operates with a wire less Infrared IR remote control consider the advantages of installing a Niles Infrared Extender System Niles manufactures a...

Page 7: ...you as you listen to music or you are very conscious of clarity detail and the textures of the individual instruments or you listen criti cally to movie soundtracks or music videos in your home theat...

Page 8: ...nly one pair of speakers in a large room you will notice that when the sound is perfect in one part of the room it is too loud near the speakers By placing more than one pair in the room you will avoi...

Page 9: ...ns and thus more surround sound effect However as you move the speaker farther away from the listener both the reflected and the direct sound will dissipate requiring more power from your surround sou...

Page 10: ...ques 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 elec...

Page 11: ...factor for turns and other obstacles then cut off each section so that you have a bundle of wires you can pull at once Whenever you run the wire further than four and one half feet from a hole in a s...

Page 12: ...Figure 8 Identify where all of your electrical phone and TV wiring is likely to be and plan to route around it all You can accidentally induce 60Hz hum on your speakers if you run your speaker wire r...

Page 13: ...s which could be removed and replaced with the wire behind them Doorjambs can be removed and often have enough space for speaker wire all the way around the door See Figure10 Sometimes an under the ca...

Page 14: ...ting the Wall Cavity If feasible fill the wall cavity with insula tion at this point Mounting The New Construction Bracket The hole saving bracket enables a faster and cleaner final installation of th...

Page 15: ...g a stud sensor or hand knocking 2 Once you have determined a possible position for the cutout drill a 1 8 pilot hole just barely through the ceiling 1 2 to 5 8 deep in most homes about an inch below...

Page 16: ...ou 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 t...

Page 17: ...in try loosening the mounting dog screws excessive tighten ing can distort the shape of the frame holding the grille in place Painting the Speakers All models may be painted The plastic will readily...

Page 18: ...d unmusical When you hear harsh sounding treble from any good speaker turn the volume down immedi ately Those harsh sounds are masking some much more powerful ultra high fre quency sound spikes which...

Page 19: ...or up to 80 feet 14 gauge stranded wire for up to two hundred feet Connectors accommodate 12 to 18 gauge stranded wire CM6AT Driver Compliment 6 1 2 carbon glass fiber with butyl rubber surround 1 flu...

Page 20: ...ohm selectable Frequency Response 40Hz to 21kHz 3dB on axis Tweeter Adjustment Up to 20 pivot angle Sensitivity 90dB for 2 83 volts of Pink Noise Overall Exterior Frame Dimensions 10 5 8 diameter Dept...

Page 21: ...o Over 99 999 Occupation o Arts Entertainment o Business Owner o Engineer o Finance Accounting o General Office o Management o Professional o Sales Marketing o Student o Tradesperson Musical tastes P...

Page 22: ...PLEASE FILL OUT THE WARRANTY REGISTRATION CARD ON THE REVERSE SIDE DETACH AND MAIL TO Niles Audio Corporation Warranty Registration Dept P O Box 160818 Miami Florida 33116 0818 DETACH HERE...

Page 23: ...turn the product to NILES in which case NILES will repair or replace at its sole option the defective product without charge for parts or labor NILES will return a unit repaired or replaced under warr...

Page 24: ...ers Because we constantly strive to improve our products Niles reserves the right to change product specifications without notice The technical and other information contained herein is not intended t...

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