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
CM5MP
MULTIPURPOSE
CM6MP
MULTIPURPOSE
CM8MP
MULTIPURPOSE
www.nilesaudio.com
Niles Audio
Corporation
®
12331 S.W. 130 Street
Miami, Florida 33186
Tel: (305) 238-4373
Fax: (305) 238-0185
© 2003 Niles Audio Corporation. All Rights Reserved. Niles, the Niles logo, and Blending
High Fidelity and Architecture are registered trademarks of Niles Audio Corporation.
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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 to set forth all technical and other specifications of Niles products. Additional
information can be obtained on-line. Printed in Taiwan. DS00289CTW
B L E N D I N G H I G H F I D E L I T Y
®
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A N D A R C H I T E C T U R E
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Installer Selectable Acoustic
Easy Installation
Fine Tuning (CM8MP Only)
The MP Multipurpose series speakers
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.
Installation Considerations
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.
Recommended Amplifier Power
is playing loudly, a small amplifier will
For satisfactory performance, we recom- run out of power very quickly. When an
mend an amplifier with a power rating of amplifier runs out of power it creates dam-
five to 60 watts for the CM5MP, five to 75 aging “clipping” distortion. A large ampli-
watts for the CM6MP and five to 100 fier will play at the same volume without
watts for the CM8MP. Curiously, most distorting. See the section on operating the
speakers are not damaged by large ampli- speakers for more information about clip-
fiers but by small amplifiers. If your system ping distortion.
Hole Saving Bracket
Figure 1
Available as an optional accessory, CM5
Series, CM6 and CM8 Series New
Construction Brackets can be installed as a
“hole-saver” before the drywall goes up.
The drywall contractor cuts the holes as
the drywall is installed, reducing installa-
tion time and minimizing the chance for
lost wires.
The illustration shows how a
typical CM loudspeaker
mounts into a ceiling.
New Construction Bracket serves as 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 construction process. It knocks
out cleanly when the speaker is
installed.
New construction wings
instantly snap into the
bracket without screws.
Dogs swivel 90°, then
clamp the speaker
frame to the drywall.
Frames are molded with a
slight texture to assure
good paint adhesion.
Wings are scored for
easy size trimming.
Mounting screws tighten the
“dogs”, clamping the speaker
to the drywall.
Brackets and wings
attach to the ceiling joists
with nails or screws.
Rust-proof aluminum grilles make the CM
series perfect for moist environments.
20°
Figure 3
The MP Multipurpose tweeter is
housed in a custom designed, low
diffraction enclosure which pivots
up to 20° to provide optimum high
frequency coverage
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Incorporating a Local Volume Control
In a multiroom system there is one indis- building contractor, or the local building
pensible device for true convenience—a and inspection department.
local volume control. It enables you to
adjust the volume of the speakers without
If your stereo system operates with a wire-
leaving the room.
professional audio/video installer, your
Make sure the sound will not be blocked
or reflected off of furniture or other
objects. You should have a direct line of
sight with the front of the speaker. To
determine the best position, measure the
“listening” distance between the ideal lis-
tening position (your favorite chair or
couch) and the location in which you plan
to install the speakers. Try to place the
speakers so that they are equally distant
from your listening spot and at least one
half of the listening distance apart (this
maintains a large pleasant stereo “image”).
In home theater applications where there
is a center channel you may choose to
space the left and right main speakers far-
ther apart for a “bigger than life” sound
with Dolby® encoded movies and TV
shows. However, for combined music and
movie usage stay within the good place-
ment zone for music. For example; if you
are ten feet back from the speakers, the
speakers should be between five and ten
feet apart (See Figure 4).
Speaker Placement
Introduction
Incorporating Remote Control
Although the MP Multipurpose speakers
have extensive ability to compensate for
unusual placements with their unique piv-
oting tweeters, 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 be directed and
how the acoustic fine-tuning switches
should be set for different purposes.
less Infrared (IR) remote control, consider
Plan to wire the system so that each pair the advantages of installing a Niles Infrared
of speakers has its own volume control Extender System. Niles manufactures a
built into the wall (think of a volume con- number of congealable IR sensors and wall
trol as a dimmer switch for sound).
mounted keypads which send a copy of
your hand-held remote command via a
wire to your main equipment location,
where it is repeated to your stereo system.
The wire is typically installed with the
speaker wire, since the speaker signal and
the IR signal will not interfere with each
other. This makes almost no difference to
the installation time, and the cost of the
recommended IR control cable (West Penn
D291 or equivalent) is reasonable.
Niles makes a wide range of high perfor-
mance indoor and outdoor volume con-
trols. They are available in Standard or
Decora® style cover plates (just like your
light switches and dimmers). Volume con-
trols are connected in line with the speak-
er, so you must connect the wire from the
amplifier to the volume control and then
from the volume control to the speaker.
Placement for Critical Listening
If you like to imagine that the band or
orchestra is playing in front of 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 theater, you will
need your speakers placed so that they are
optimized for critical listening. Here are
some guidelines to make the process of
placement quick and easy.
Speaker Wire
The correct routing for IR control cable is
to home run an IR control cable from the
main equipment location beside the
speaker wire to the planned volume con-
trol location; and then on to the proposed
sensor location. The combination of IR
control cable and speaker wire enables a
programmable Niles IntelliPad® to be
installed at a later date (the IntelliPad has a
convenient speaker mute feature in addi-
tion to automating and controlling your
stereo system). An IR sensor is best placed
where it is convenient for you to point the
hand-held remote. Both an IntelliPad and
an IR sensor can be connected in one
room with one home run IR control cable.
Use 2-conductor speaker wire when con-
necting MP Multipurpose speakers to your
receiver or amplifier. For most applica-
tions, we recommend you use 16 or 18
gauge stranded wire. For wiring runs
longer than 80 feet we recommend 14
gauge stranded wire. The no-strip termi-
nals of the MP speakers will accommo-
date 12 to 18 gauge wire.
Tweeters should be directed at the listen-
ing position.
When you run wire inside walls, special
jacketing (CL-2 or CL-3) is required to
both protect the wire and for fire preven-
tion. In some areas conduit is required.
For a trouble-free installation, low voltage
wire such as speaker wire must be run in
accordance with the National Electrical
Code and any applicable provisions of the
local building code. If you are unsure of
the correct installation techniques, wire
jacket or type of conduit to use, consult a
Figure 4
In this example,
the speakers
could be
Direct tweeter
placed from
towards listener
five to 10 feet
apart, since the
listener is 10
feet back from
the speakers
Insulation Behind The Speaker
For best performance from your speakers
lay a batten of fiberglass insulation
(example: R-19 un-batted insulation) on
top of the speaker. Try to keep the same
amount of insulation for each speaker,
particularly in the same room, for consis-
tent bass response.
Critical
Listening
Position
10'
5'
10'
TECH TIP
Wire size is expressed by
its AWG (American Wire
Gauge) number. The lower
the number, the larger the
wire, i.e. 12 AWG is physi-
cally larger than 14 AWG.
Direct tweeter
towards listener
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Placement for Varying
Listening Positions
around you” effect). The speakers can be
placed near corners to create more reflect-
ed 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, oth-
erwise the compromise becomes too one
sided and at high volumes, the sound will
be blurred and less distinct.
move the speaker farther away from the uniquely suited to enhance a good sur-
round sound system. Consult your local
Niles dealer for more information.
listener, both the reflected and the direct
sound will dissipate, 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 location. If
you are using a 25 to 50 watt amplifier
you can mount the speakers 10 to 15 feet
away from the listening location and still
achieve reasonably high volume levels.
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 around
the listening area, so that the music is
always surrounding you, regardless of the
direction you face.
The Boundary Effect
Corners can affect the bass response of the
speaker powerfully! This is called the
boundary effect. You will emphasize par-
ticular bass frequencies and cancel out
other bass frequencies when you place
speakers close to the wall/ceiling bound-
ary or a corner wall boundary. This can
make the speaker sound excessively
boomy and inaccurate to some listeners,
while to others it just seems like more bass
sound. A good rule of thumb is if you
always listen to your current pair of speak-
ers with the bass turned up, you’ll enjoy
corner placement. If you keep your tone
controls at neutral, try to keep the speak-
ers at least two or three feet from the
boundaries of the room.
Placement for Home Theater
Rear Applications
In large or unusually shaped rooms, using
multiple speakers 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 sur-
round speakers will prove extraordinarily
effective (See Figure 6). With Niles MP
Multipurpose loudspeakers it is easy to add
another pair without affecting the decor of
the room. However, you will need to use a
much more powerful amplifier than that
which is built into a typical surround
sound receiver or amplifier. Niles makes a
number of Systems Integration Amplifiers
with proprietary features that make them
The rule of thumb is to add one pair of
speakers for every 100 to 200 square feet
of listening area. Curiously, this is not so
that you can play the music louder, but so
that you can play it softer! When you
have only 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 avoid
these “hot spots” of loud sound and you
will create more sonic ambiance while
maintaining clarity and a rich sound
everywhere (See Figure 5).
In a home theater, the goal is to reproduce
the experience of a great movie theater in
our homes. The biggest difference between
the two is the rear or surround speaker
array in a commercial theater. Here, it is
not uncommon to see twenty or thirty
speakers around the audience. This huge
array of speakers assures that you will feel
completely surrounded by the ambient
soundtrack of the movie. Film makers try
to use the “surround” soundtrack to enve-
lope you in the environment on screen.
They will place background music, rain
sounds, traffic noise, etc. on the “surround”
soundtrack. In a home with a single pair of
speakers it is easy for the jungle sounds to
sound like they are “in the middle of your
head” just like headphones!
You can make listener position still less
critical by using mono rather than stereo.
This can be difficult to achieve with nor-
mal stereo amplifiers. However, Niles
manufactures Systems Integration
Amplifiers® which enable one room to be
wired in stereo while other rooms are
wired in mono! Consult your local Niles
dealer for more information.
A
single pair of MP Multipurpose
Loudspeakers, properly placed, can create
a very convincing simulation of an array
of speakers. If you place them near a hard
reflecting surface you can make one pair
of speakers sound like several. Create as
many reflections as possible by placing
the speakers near a corner so that the
adjoining walls will act as a powerful
reflector. Direct the tweeters so that sound
is pointed away form the listener creating
still more reflections and thus more “sur-
round sound” effect. However, as you
In smaller rooms or rooms that are infre-
quently used, you typically can’t justify the
expense of more than two speakers. Try to
bracket the room with the two speakers.
Diagonal placement is a very effective way
to stretch the coverage pattern of two
speakers. You can also compromise
between direct sound (for detail and clari-
ty) and reflected sound (the ambient or “all
Figure 5
Figure 6
Varying Listening Position
Surround Sound
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Side-by-side wiring is unavoidable in par-
ticular spots in every house, just move the
speaker wire route away as soon as possi-
ble. If construction forces a side by side
run for more than ten feet, install metal
conduit or shielded speaker wire. Low-
voltage wires such as doorbells, inter-
coms, telephone, security, or television
cannot cause interference or hum on your
speaker wires, so you can safely run all of
them at the same time, through the same
holes, side-by-side.
Try to line the holes up perfectly, because when you look at the painted wall board,
Installation
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 lot
of time later on!
plaster, or paneling is only the skin of the
wall. Behind the skin is the skeleton; two-
by-four wood or metal “studs” running
vertically from the floor to the ceiling in
walls and two-by-six or larger “joists” run-
ning horizontally in the ceilings and
floors. In between the studs and the joists
is the space for the wiring and plumbing
of your home.
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.
Pulling the Cable
Pull the cable in sections (from the stereo
to the volume control, from the volume
control to the speaker). Start with the
longest sections and use left over wire to
complete the short sections. If you plan to
pull many rooms at the same time through
a central route, walk off the distance to
each destination, add a generous fudge
factor for turns and other obstacles, then
cut off each section so that you have a
bundle of wires you can pull at once.
Exterior walls are different. They must
insulate the house from the heat and cold
outside, so they are stuffed with insulation.
The national building code requires that
the hollow wall space in exterior walls be
broken by a horizontal stud placed
between the vertical studs. This “fire
blocking” makes it very difficult to retrofit
long lengths of wire. In some areas of the
country the exterior walls are constructed
of solid masonry, and have no hollow
space for speakers or wires.
Before you drill any holes, mount the
speaker brackets in the desired speaker
locations and mount p-rings or open
backed J-boxes where the in-wall volume
controls and stereo equipment will be.
Scheduling and Preparation
Plan to schedule the speaker wiring after
the electrical wiring is finished. That way
you can avoid wire routes which could
potentially induce hum over the speaker
wire. The basic rules are:
Safety First!
Wear gloves, safety goggles and head pro-
tection when drilling. Avoid nails, they ruin
bits and they can create injury. Pay particu-
lar care when using “hole-hogs” and other
powerful electric drills; the torque of the
drill when suddenly stopped by a nail can
break the wrist of a strong man.
Whenever you run the wire further than
four and one half feet from a hole in a stud
or joist (open attic space, going up walls,
etc.), fasten the wire to the joists or studs
using cable clamps or appropriately sized
wire staples. The wire should not have
large sags in it, nor should it be too tight.
Try to protect the wire from being stepped
on in attics or other unfinished crawl
spaces. There are guard strips, raceways
and conduits which can be used to protect
the cable. Consult the local building code
for special requirements in your area.
•
•
•
Never run speaker wire through the
same hole as an electrical cable.
Start by examining all the possible routes
you might take to run the speaker wire
from the speaker to the volume control
and back to the stereo. Use a stud sensor
or other device to locate the internal struc-
ture of the wall. You want to avoid all
studs or joists. A typical route would be:
from the speaker location in the ceiling,
across the attic, then down through a top
plate (the horizontal 2x4 or 2x6 laid
across the vertical studs) to the volume
control location, back up to the attic,
across the attic, and finally down another
wall plate to a J-Box in the wall behind the
stereo system itself (See Figure 6).
Never run speaker wire into the same
J-box as electrical cable.
Drilling
Avoid running the speaker wire beside
the electrical cable. Keep your speaker
cable at a distance of at least 18"-22"
from any electrical power cable.
Use a bit that is large enough for the wires
you plan to run. An auger bit is the pre-
ferred bit for rough-in wiring. It will actu-
ally pull itself through the wood, so that
the drill motor, not you, does most of the
work. You may be drilling a lot of holes,
so this is an important consideration.
Figure 5
Always drill the holes in the center of the
stud. If you have to notch the stud or drill
the hole closer than one inch from the
edge of the stud, protect the wire with a
nail plate (See Figure 5).
Concealing Speaker Wire
in Existing Walls
This is actually a fairly simple task if you
restrict your choice of speaker locations
and wire routes to the interior walls or
ceilings of your home. Interior walls in
almost all North American residences are
hollow, so that it is easy to flush mount
speakers into them and route new speaker
cable around the house. What you see
Identify where all of your electrical,
phone, and TV wiring is likely to be and
plan to route around it all. You can acci-
dentally induce 60Hz hum on your speak-
ers if you run your speaker wire right
beside electrical wire for more than a few
feet. Try to keep speaker wire running par-
When drilling holes in ceiling joists drill
in the center of the joists and try to locate
the hole near the end of the joist. DO
NOT drill through a “gluelam” or any
load bearing beam without the direction
of your contractor.
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Figure 10
When you don’t have access
above or below the wall, try
to estimate the existing wire
and pipe locations from the
positions of electrical outlets
and plumbed fixtures on both
sides of the wall. Take a look
at the outside of your house
too, sometimes conduit,
vents or drain pipe will be
visible that give useful infor-
mation. Choose the route
with the fewest potential
obstacles.
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 go down the wall when there is not an
accessible attic). Don’t make an irregular
hole in the drywall. If you carefully cut a
rectangular hatch in the drywall you will
make your patch at the same time you cut
your hole. Notch the bottom of the joists
and run the wire through the notches.
Protect the wire with nail plates. Once
you’ve run your wire replace the hatch you
cut using standard drywall “joint tape” and
“joint compound” to hold the patch in
place, let dry, sand surface and touch-up
the wall with paint. (See Figure 9).
Speaker
Location
Volume
Control
Location
If your house is built on a
slab or you are wiring
between two finished floors,
look for baseboards 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 Figure 8.
Stereo
Location
The door jamb has been removed and the
speaker wire concealed between the wall and
the jamb. Nail plates are installed to protect
the wire and the door jamb is replaced
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, 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
space you can quickly see which part of
the wall space is free of obstructions (See
Figure 7).
Sometimes, an under-the-carpet run is
possible (there are special flat speaker
wires made for under-the-rug wire runs).
As a last resort, heating and air condition-
ing vents can be used as wire raceways for
plenum rated wire (check your local
building codes, some municipalities
require conduit).
Unobstructed space
for speaker wiring
Figure 9
Figure 11 Diagram of ceiling speaker cut-out with ceiling joists notched for wire run.
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The wings and brackets have centering
lines to simplify placement of the speakers.
Figure 14
Installation in New
Construction
Installation in
Screw one side of the assembled bracket
with wings to the joist using one of the
supplied screws. Level the bracket. Screw
the other side of the bracket/wing assem-
bly to the joist. Two screws on each side
make for a very secure installation. Secure
the wire to the bracket using bracket’s
wire tie. The drywall installers will cut the
drywall to the exact size of the bracket.
(See Figure 12)
Existing Construction
IMPORTANT: Before you cut into any
wall, review the sections on running
wire and speaker placement.
Insulating the Wall Cavity
If feasible, fill the wall cavity with insula-
tion at this point.
Mounting The New Construction
Bracket
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.
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 ties for the speaker wire, reducing the
risks of accidental loss or movement of the
wire. In addition, it enables you to align
your speakers with other ceiling fixtures
with great accuracy since you can really
see exactly where the speaker will be.
Concealing Speaker Wire for a
Future Installation
Attach the speaker wire in a loop between
the ceiling joists and carefully mark the
exact location of the wire on a set of
plans. Ask the general contractor to inform
the drywall installers that the speaker wire
loops are concealed for future installa-
tions. (See Figure13)
5. If you are cutting drywall use a
sheetrock or keyhole saw. Cut the hole
with the saw at a 45° angle. That way,
the drywall section can be replaced
cleanly if there is an unseen obstruction
behind the wall. BE VERY CAREFUL
NOT TO SAW THROUGH EXISTING
WIRES, PIPES, O R STRUCTURE. IF
YO U FEEL EXTRA RESISTANCE AS
YOU ARE CUTTING, STOP.
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 the center of your
proposed speaker location. BE VERY
CAREFUL NOT TO DRILL THROUGH
EXISTING WIRES, PIPES, OR STRUC-
TURE. IF YOU FEEL ANY EXTRA RESIS-
TANCE AS YOU ARE DRILLING, STOP.
To install the bracket, first attach the
QuickSnap™ new construction wings to
the bracket by snapping them into the
sides of the bracket. The wings can be
shortened by breaking them along the
scored lines if the length will interfere with
corner or eaves.
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.
3. Cut a foot-long piece of coat hanger.
Bend the wire (creating a right angle)
leaving 4-1/8" at one end for the
CM5MP, 4-3/4" for the CM6MP and 5-
1/2" for the CM8MP (this allows for the
extra width of the mounting dogs). Poke
the “L-shaped” wire into the pilot hole
and turn it in a complete circle and
move it into the ceiling cavity to make
sure you have approximately 3-3/4" of
depth. If the wires movement is
obstructed by anything, fill the hole(s)
with spackle and try another location.
(See Figure 14)
Figure 12
Figure 13
4. If the coat hanger moves freely in a com-
plete circle, hold the supplied template
up to the ceiling surface. Outline the cir-
cular cutout on the ceiling surface with a
pencil. Drill starting point with a 1/4" bit.
The optional hole saving brackets are installed
and the speaker wire is attached to the bracket.
The speaker wire is looped and hung on two
nails attached to the joists securing it for
future use. Make sure the location is noted
on house plans.
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13
14
NOTE: The screws will be easier to turn if
you “prime” them first. Before installing each
speaker, turn the screws in and then turn
them back out to their original positions.
9. Install the grille into the speaker. The speaker. An out-of-phase pair of speakers
grilles should fit snugly. If you have diffi- work against each other and the sound of
culty fitting them in, try loosening the the two speakers playing together will be
mounting dog screws (excessive tighten- lacking in bass and be “phasey” sounding.
ing can distort the shape of the frame If you suspect the sound is not right and
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.
7. Direct the Tweeter. The tweeter is
directed by gently pushing on the edge
of the tweeter grille. It will move 20° in
holding the grille in place).
you cannot see any markings on the wire,
try this simple test:
1. Stand half way between the speakers.
Painting the Speakers
All models may be painted. The plastic
will readily accept most paints.
2. Play some music with the amplifier
or radio set to Mono.
2. Separate the speaker end of the two-
conductor speaker-wire run to free at
least 2" of each conductor.
The speakers must be masked prior to
painting them. The inside circular portion 3. Listen to the richness of the bass and
of the hole template can be used as a
paint mask. Remove the outside portion of
the template by gently pulling along the
perforation. Affix the mask to the front of
the speaker using a piece of tape. Fold the
the loudness of the sound.
3. Strip 1/2" of insulation from the end of
each conductor. (See Figure 15.)
4. Turn off the amplifier and reverse the
connections on one amplifier chan-
nel only.
4. To connect the stripped end of one
conductor to the black terminal, push
down on the black terminal lever. Insert
the stripped end of the conductor into
the opening. Release the pressure on
the lever.
tape onto itself to form a double-sided 5. Repeat the listening test with the
loop. Affix the tape to the tweeter and
place the mask onto the speaker.
same setting of the volume control.
When the sound has a richer bass
and is slightly louder the speakers are
working together or “in-phase”.
Figure 16
The grilles should be painted before they
are installed. For all models, the best
results will be obtained by using a spray
gun or airless sprayer, thinning the paint
(prevents clogging of the grille holes), and
by applying several light coats instead of
one heavy one.
any direction. For critical listening point
the tweeter to the user’s favorite listen-
ing position minimizing reflections from
the side walls. For surround sound or
low volume background listening cre-
ate more reflections and thus more
ambience by directing the tweeter
towards the side walls. See Speaker
Placement on Page 6.
5. Repeat step 4 with the other conductor
and the red terminal.
6. 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
install the speaker, first rotate the dogs
inward. Insert the speaker into the
cutout and tighten the dogs by turning
the screws clockwise. DO NOT OVER-
TIGHTEN THESE SCREWS. Over-tight-
ening the clamps may make the grille
difficult to install. (See Figure 16).
Speaker Phase
Speaker wire has two conductors. One
conductor is attached to the negative (-)
terminals and one conductor is attached
to the positive (+) terminals of both your
speaker and your amplifier. Usually, the
wire is marked for your convenience.
There are different ways wires are marked:
a stripe on one wire, a ribbed area of one
conductor you can only feel, different col-
ors of metal wire on each conductor, or
there might be a fabric strand or string
wound into one of the conductors. Of
course, there are some wires which
appear completely identical. Be careful, or
you might make a mistake.
8. On CM8MP only, adjust the bass and
treble control settings by listening to a
well-recorded piece of music at the
user’s favorite listening position. 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 cor-
ner. Use the -2dB Bass cut to correct. b)
Listen for treble harshness or ringing, par-
ticularly when the speakers are placed in
a room without carpet/ Use the -2dB
Treble cut switch to correct.
2” min.
0.5”
If you make a mistake, one speaker will be
playing “out-of-phase” with the other
Figure 15
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16
Operation
Specifications
Listening at Higher Volumes
CM5MP
CM6MP
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.
Driver Compliment
5-1/4" talc-filled polypropylene woofer
with treated foam rubber surround
Driver Compliment
6-1/2" talc-filled polypropylene woofer
with treated foam rubber surround
3/4" fluid-cooled ultra-wide dispersion
Kaladex® tweeter in a custom pivoting
coaxial enclosure
3/4” fluid-cooled ultra-wide dispersion
Kaladex® tweeter in a custom pivoting
coaxial enclosure
Clipping distortion makes treble sound
very harsh and 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 will quickly
damage any fine loudspeaker. You are
much less likely to damage a speaker with
a large amplifier because it will be very
loud indeed before it produces any clip-
ping distortion.
Recommended Amplifier Power
Recommended Amplifier Power
Five to 60 watts per channel
Five to 75 watts per channel
Nominal Impedance
Nominal Impedance
6 Ohms
6 Ohms
Frequency Response
Frequency Response
75Hz to 20kHz, +/- 3dB (on axis)
65Hz to 20kHz, +/- 3dB (on axis)
Tweeter Adjustment
Tweeter Adjustment
Up to 20° pivot angle
Up to 20° pivot angle
Sensitivity
Sensitivity
90dB for 2.83 volts of Pink Noise
90dB for 2.83 volts of Pink Noise
Cleaning
You can clean the speaker with a damp-
ened soft cloth or paper towel. If the
speaker is mounted high up on a wall or
ceiling, use a broom to gently brush it off.
Overall Exterior Frame Dimensions
Overall Exterior Frame Dimensions
8-1/8" diameter
9-1/4" diameter
Depth Behind Wall
Depth Behind Wall
3-3/8" deep (based on 1/2" drywall)
3-3/4" deep (based on 1/2" drywall)
Cut-Out Dimensions
Cut-Out Dimensions
6-7/8" diameter
8" diameter
Wiring Requirements
Wiring Requirements
We recommend 16 to 18 gauge stranded
wire for up to 80 feet, 14 gauge stranded
wire for up to two hundred feet.
We recommend 16 to 18 gauge stranded
wire for up to 80 feet, 14 gauge stranded
wire for up to two hundred feet.
Connectors accommodate 12 to 18 gauge
stranded wire.
Connectors accommodate 12 to 18 gauge
stranded wire.
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17
18
Specifications
PLEASE FILL OUT THE
WARRANTY REGISTRATION
CARD ON THE REVERSE SIDE,
DETACH, AND MAIL TO:
CM8MP
.
Driver Compliment
8" talc-filled polypropylene woofer with
treated foam rubber surround
Niles Audio Corporation
Warranty Registration Dept.
P.O. Box 160818
3/4" fluid-cooled ultra-wide dispersion
Kaladex® tweeter in a custom pivoting
coaxial enclosure
Miami, Florida 33116-0818
Recommended Amplifier Power
Five to 100 watts per channel
Nominal Impedance
6 Ohms
Frequency Response
55Hz to 20kHz, +/- 3dB (on axis)
Tweeter Adjustment
Up to 20° pivot angle
Sensitivity
89dB for 2.83 volts of Pink Noise
Overall Exterior Frame Dimensions
10-5/8" diameter
Depth Behind Wall
3-3/4" deep (based on 1/2" drywall)
Cut-Out Dimensions
9-1/2" diameter
Wiring Requirements
We recommend 16 to 18 gauge stranded
wire for up to 80 feet, 14 gauge stranded
wire for up to two hundred feet.
Connectors accommodate 12 to 18 gauge
stranded wire.
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19
WARRANTY REGISTRATION CARD
Limited Warranty
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.
Model Purchased__________________________________________________________________________________
Serial Number___________________________________________________________________________________
Date Purchased (month/day/year)_________________________________________________________________
This Warranty is subject to the following additional conditions and limitations. The Warranty
is void and inapplicable if NILES deems that the product has been used or handled other than
in accordance with the instructions provided by the manufacturer, including but not limited to
damage caused by accident, mishandling, improper installation, abuse, negligence, or normal
wear and tear, or any defect caused by repair to the product by anyone other than NILES or an
authorized NILES dealer.
Dealer Name and Location________________________________________________________________________
__________________________________________________________________________________________________
❑ Dr.
❑ Miss
❑ Mr.
❑ Mrs.
❑ Ms.
To obtain warranty service, take the unit to the nearest authorized NILES dealer, who will test
the product and if necessary, forward it to NILES for service. If there are no authorized NILES
dealers in your area, you must write to NILES and include your name, address, model and
serial number of your unit, along with a brief description of the problem. A factory Return
Authorization Number will be sent to you. DO NOT RETURN ANY UNIT WITHOUT FIRST
RECEIVING WRITTEN AUTHORIZATION AND SHIPPING INSTRUCTIONS FROM NILES.
Name____________________________________________________________________________________________
Address_________________________________________________________________________________________
_________________________________________________________________________________________________
City_________________________________________________________State______________Zip______________
If the above conditions are met, the purchaser's sole remedy shall be to return 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 warranty
by shipping same by its usual shipping method from the factory (only) at its expense within the
United States of America. THERE ARE NO OTHER WARRANTIES, INCLUDING WITHOUT
LIMITATION, EITHER EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FIT-
NESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PRODUCT.
Telephone (___________)___________________________________________________________________________
REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE
REMEDY OF THE CONSUMER/PURCHASER. NILES SHALL NOT BE RESPONSIBLE FOR
ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT TO THE EXTENT PROVIDED
(OR PROHIBITED) BY APPLICABLE LAW.
Please take a moment to fill out our warranty registration card. The information helps us to
get to know you better and develop the products you want
Age:
Musical tastes:
What magazines do
you read?
Do you . . .?
Some states do not allow the exclusion or limitation of incidental or consequential damages,
so the above limitation may not apply to you. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to state.
❑
❑
❑
❑
❑
❑
Own a House. If yes,
how many square feet?
Under 25
25-34
35-44
45-54
55 & over
(Please check all that
apply)
1._____________________
2. ___________________
3. ___________________
__________________
❑
❑
❑
❑
❑
❑
❑
❑
❑
Alternative
Classical
Country
Jazz
New Age
Popular
R&B
Rock
Other______________
❑
Own a Town House/
Condominium/Co-op
Rent an Apartment
Rent a House
For the name of your nearest authorized NILES dealer contact:
❑
❑
Income:
Who will install the
product?
NILES AUDIO CORPORATION
P.O. BOX 160818, Miami, Florida 33116-0818.
❑
❑
❑
❑
❑
❑
❑
Under $24,999
$25,000-$34,999
$35,000-$44,999
$45,000-$59,999
$60,000-$74,999
$75,000-$99,999
Over $99,999
Are you interested in
receiving literature on
other Niles products?
❑
❑
❑
❑
Custom Installer
Electrician
Friend
Please fill in your product information and retain for your records.
❑
❑
No
Myself
Yes
How did you hear
about Niles?
Which factor(s) influ-
enced the purchase of
your Niles product?
Are there products/
capabilities that you
would like to see
introduced?
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
Architect/Developer
Custom Installer
Direct Mail
Occupation:
Model____________________________________________________________________________________
Serial No._________________________________________________________________________________
Purchase Date_____________________________________________________________________________
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
Arts/Entertainment
Business Owner
Engineer
Finance/Accounting
General Office
Management
Professional
Sales/Marketing
Student
Tradesperson
(Please check all that
apply)
Friend/Family
____________________
____________________
____________________
____________________
____________________
____________________
In-Store Display
Interior Designer
Magazine Ad
Mail-Order Catalog
Newspaper Ad
Product Brochure
Product Review
Retail Salesperson
❑
❑
❑
❑
❑
❑
❑
Ease of Use
Price/Value
Product Features
Quality/Durability
Reputation
Style/Appearance
Warranty
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