PLACEMENT CONSIDERATIONS
CONGRATULATIONS
SPECIFICATIONS
DESIGN PRINCIPLE
Infinite baffle. Specifically designed
for in-ceiling applications. Extended
bass response, ultra-wide dispersion
WOOFER
6-1/2” dual voice coil polypropylene
with a rubber surround
TWEETER
Dual 3/4” dome tweeters
RECOMMENDED AMPLIFIER
POWER
5 to 125 watts per channel RMS
FREQUENCY RESPONSE
45 Hz to 20 kHz +/- 3 dB
SENSITIVITY
91 decibels for 2.83 volts of pink
noise, measured at 1 meter on axis
IMPEDANCE
8 ohm nominal; 7 ohm minimum
OVERALL DIMENSIONS
9-1/4” diameter
MOUNTING DEPTH
3-3/8” (assumes 1/2” drywall)
CEILING CUT-OUT FOR RETROFIT
8” diameter
BEZEL FINISH
Pearl white ABS with non-glare finish
GRILLE COLOR AND MATERIAL
Pearl white, perforated aluminum
WEIGHT
7 lbs.
TOOLS REQUIRED
• Keyhole saw
• #2 Philips screwdriver or screw-
driver bit
• Pencil
The CM650SI stereo input ceiling mount
loudspeaker offers Niles durability and
installation ease and is designed for
unobtrusive installations.
The CM650SI measures 9-1/4” in diame-
ter. It features a weather-resistant dual
input 6-1/2” polypropylene co-axial
driver system with a rubber surround and
powder coated aluminum grilles, making
it suitable for bathroom and outdoor patio
applications. It employs a bracketless
mounting system: simply cut a hole in the
mounting surface and tighten the four
clamps via front-baffle screws. The flush,
MicroPerf
™
grille can be painted or cov-
ered to blend with the surrounding decor.
FEATURES & BENEFITS
I N S T A L L A T I O N A N D O P E R A T I O N G U I D E
Thank you for choosing a Niles Ceiling
Mount loudspeaker. With proper instal-
lation and operation, you’ll enjoy years
of trouble-free use.
CONTINUED OTHER SIDE
The CM650SI is designed to work well
in any standard ceiling. The mounting
surface must be at least 3/8” thick.
It will perform well in any air volume
greater than .5 cubic feet.
This speaker is designed to be minimally
affected by long lengths of speaker wire.
The CM650SI will accommodate speaker
wire between 12 and 22 gauge.
WIRING CONSIDERATIONS
PACKAGE CONTENTS
• 1 Piece Speaker With Grille
• 1 Piece Hole Template/Paint Mask
®
FEATURES & BENEFITS
PLACEMENT CONSIDERATIONS
WIRING CONSIDERATIONS
1. Cut a foot-long piece of coat hanger.
Bend the wire (creating a right angle) leav-
ing 4-3/4” at one end for the CM650SI
(this allows for the extra width of the
mounting dogs). Poke the “L-shaped” wire
into the pilot hole and turn it in a com-
plete circle and move it into the ceiling
cavity to make sure you have approxi-
mately 3-3/8” of depth. If the coat hanger
movement is obstructed by anything, fill
the hole(s) with spackle and try another
location (See Figure 1).
INSTALLATION PROCEDURE
INSTALLATION PROCEDURE
CM
650
SI
C E I L I N G M O U N T
Figure 1
Checking for obstructions
behind the ceiling surface.
B
L E 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
®
