PLACEMENT CONSIDERATIONS
CONGRATULATIONS
SPECIFICATIONS
DESIGN PRINCIPLE
Infinite baffle. Specifically designed
for in-ceiling applications. Extended
bass response, ultra-wide dispersion
WOOFER
6-1/2” polypropylene with a urethane
surround
TWEETER 3/4” dome
FREQUENCY RESPONSE
55 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” dry wall)
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
8 lbs. per pair
TOOLS REQUIRED
• Keyhole saw
• #2 Philips screwdriver or screw-
driver bit
• Pencil
The CM650BG ceiling mount loudspeak-
er offers Niles durability and installation
ease and is designed for unobtrusive
installations.
The CM650BG measures 9-1/4 diameter;
It features a weather-resistant 6-1/2 inch
polypropylene co-axial driver system
with a urethane surround and powder
coated aluminum grilles, making it suit-
able 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 CM650BG is designed to work well
in any standard ceiling. The mounting
surface must be at least 3/8 inch 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 CM650BG will accommodate speak-
er wire between 12 and 22 gauge.
WIRING CONSIDERATIONS
PACKAGE CONTENTS
• 1 Pair of Speakers
• 1 Pair of Hole Template/Paint Masks
®
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 CM-650BG
(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
BG
C E I L I N G M O U N T
Figure 1
Feeling 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
®
