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

CM6.1SI CM6.3SI CM6.5SI CM8.5SI

ST E R E O I N P U T

 

ST E R E O I N P U T

 

ST E R E O I N P U T

 

ST E R E O I N P U T

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-cooledultra-wide dispersion Kaladex® CM6.5SI & CM8.5SI: 3/4" fluid-cooledultra-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

FEATURES & BENEFITS

The CM6.1SI, CM6.3SI, CM6.5SI and CM8.5SI stereo input ceiling mount loud- speakers offer Niles durability, installation ease and are designed for unobtrusive installations.

CM Stereo Input loudspeakers are 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.

PACKAGE CONTENTS

1 Piece Speaker With Grille

1 Piece Hole Template/Paint Mask

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.

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

PLACEMENT CONSIDERATIONS

The CM6.1SI, CM6.3SI, CM6.5SI and

face must be at least 3/8” thick.

CM8.5SI are designed to work well in

They will perform well in any air vol-

any standard ceiling. The mounting sur-

ume greater than .5 cubic feet.

WIRING CONSIDERATIONS

These speaker are designed to be mini-

wire. They will accommodate speaker

mally affected by long lengths of speaker

wire between 12 and 18 gauge.

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 ®

INSTALLATION PROCEDURE

Figure 1

Checking for obstructions behind the ceiling surface.

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).

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Niles Audio CM6.5SI, CM8.5SI, CM6.3SI, CM6.1SI specifications Specifications, Package Contents

CM6.1SI, CM6.3SI, CM6.5SI, CM8.5SI specifications

Niles Audio is known for producing high-quality architectural speakers, and their CM series is a testament to their commitment to excellence in audio engineering. The CM6.1SI, CM6.5SI, CM8.5SI, and CM6.3SI models are designed for both performance and aesthetic appeal, making them popular choices for home theater systems and multi-room audio setups.

The CM6.1SI is a 6.5-inch in-ceiling speaker that delivers exceptional sound quality and superb clarity. Featuring a pivoting 1-inch silk dome tweeter, it allows for precise sound directionality, enhancing the listening experience across a wide area. The speaker's dual 6.5-inch woofers are designed to provide deep bass response while maintaining accuracy, ensuring that your music and movie audio comes through with richness and warmth. Its paintable grille allows for seamless integration into any room decor.

The CM6.5SI takes things a step further with its larger 6.5-inch woofer and increased power handling capabilities, making it suitable for larger spaces. This model incorporates Niles' advanced acoustic design and engineering techniques to optimize performance, featuring a dual 6.5-inch woofer arrangement and a 1-inch aluminum dome tweeter. The result is a more dynamic sound stage, with excellent treble and bass quality that makes it ideal for both music and dialogue.

For those requiring even more power and depth, the CM8.5SI is a standout choice. With an 8-inch woofer and robust design, it excels in delivering deep, resonant bass while maintaining clarity throughout the frequency range. The 1-inch adjustable tweeter further allows for tailored sound performance depending on the room's acoustics. This model is perfect for larger home theaters or commercial spaces where high-impact audio is essential.

Lastly, the CM6.3SI combines versatility with high-fidelity sound. This model features a 6.5-inch woofer and a unique three-driver configuration, which ensures a balanced sound output. It is particularly effective in multi-room setups, where consistent sound quality is required across various listening environments.

All Niles Audio CM series speakers are equipped with the company's innovative technologies, such as their proprietary power handling and tweeter designs, ensuring long-lasting performance and reliability. With excellent frequency response, minimal distortion, and versatile mounting options, these speakers offer a premium listening experience while maintaining aesthetic integrity. Whether in-ceiling or in-wall, Niles Audio's CM series speakers deliver powerful, immersive sound that elevates any audio system.