Niles CM6.5SI - Manual

PLACEMENT CONSIDERATIONS

The CM6.1SI, CM6.3SI, CM6.5SI and
CM8.5SI stereo input ceiling mount loud-
s p e a k e r s o f f e r N i l e s d u r a b i l i t y ,
installation ease and are designed for
unobtrusive installations.

C M S t e r e o I n p u t l o u d s p e a k e r s a r e
designed to deliver stereo sound from a
single speaker. Dual tweeters housed in a
stereo imaging faceplate deliver left and
right channels (stereo) while a dual voice-
coil woofer mechanically sums both left
and right channels, creating a convincing
illusion of stereo through a single speaker.

CM Stereo Input speakers are ideal for
locations where a stationary “sweet spot”
is impossible or impractical such as hall-
ways or entryways. They also deliver
quality two-channel sound in locations
that only have enough space to accom-
modate a single speaker such as an
enclosed shower.

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

CONTINUED OTHER SIDE

The CM6.1SI, CM6.3SI, CM6.5SI and
CM8.5SI are designed to work well in
any standard ceiling. The mounting sur-

f a c e m u s t b e a t l e a s t 3 / 8 ” t h i c k .
They will perform well in any air vol-
ume greater than .5 cubic feet.

These speaker are designed to be mini-
mally affected by long lengths of speaker

wire. They will accommodate speaker
wire between 12 and 18 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)
leaving 4-3/4” (5-3/8" for the CM8.5SI)
at one end (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 4” 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

Figure 1

Checking for obstructions
behind the ceiling surface.

S T E R E O I N P U T

CM

6.1

SI

S T E R E O I N P U T

CM

6.3

SI

S T E R E O I N P U T

CM

6.5

SI

S T E R E O I N P U T

CM

8.5

SI

SPECIFICATIONS

WOOFER (DUAL VOICE COIL)
CM6.1SI:

6-1/2" talc-filled

polypropylene with a foam surround

CM6.3SI & CM6.5SI:

6-1/2" mica-filled

polypropylene, butyl rubber surround

CM8.5SI:

8" mica-filled polypropylene

with a butyl rubber surround

TWEETER (DUAL)
CM6.1SI & CM6.3SI:

3/4" fluid-cooled

ultra-wide dispersion Kaladex

®

CM6.5SI & CM8.5SI:

3/4" fluid-cooled

ultra-wide dispersion Teteron

RECOMMENDED AMP POWER
CM6.1SI:

3 – 50 watts

CM6.3SI:

5 – 100 watts

CM6.5SI:

10 – 125 watts

CM8.5SI:

10 – 150 watts

FREQUENCY RESPONSE
CM6.1SI:

65Hz to 20kHz +/- 4dB

CM6.3SI:

60Hz to 20kHz +/- 4dB

CM6.5SI:

55Hz to 20kHz +/- 4dB

CM8.5SI:

45Hz to 20kHz +/- 4dB

SENSITIVITY
CM6.1SI:

90dB for 2.82V pink noise

CM6.3SI:

88dB for 2.82V pink noise

CM6.5SI:

89dB for 2.82V pink noise

CM8.5SI:

90dB for 2.82V pink noise

IMPEDANCE
CM6.1SI:

8 ohm

CM6.3SI, CM6.5 & CM8.5SI:

6 ohm

OVERALL DIMENSIONS

(with frame)

9-1/4" in diameter

CM8.5SI:

10-5/8" in diameter

MOUNTING DEPTH

3-3/8" (based on 1/2" drywall)

CM8.5SI:

3-3/4" (based on 1/2" drywall)

CUT-OUT FOR RETROFIT

8" diameter

CM8.5SI:

9-1/2" in diameter

WEIGHT
CM6.1SI:

3 lbs. 2 oz.

CM6.3SI:

4 lbs. 2 oz.

CM6.5SI:

4 lbs. 2 oz.

CM8.5SI:

8 lbs. 5 oz.

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

®