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An in-ceiling speaker from the custom-install experts

With over 34 years in business, Niles Audio has made a name for themselves helping people enjoy music throughout their homes. That experience and dedication has led to in-ceiling speakers like the CM8MP — speakers that deliver clear, musical detail with minimal visual impact on your room.

Innovative design for satisfying sound

The CM8MP employs an 8" polypropylene woofer. Thanks to an integrated woofer/baffle design, it has roughly the same outer diameter as many 6-1/2" speakers from other manufacturers. The extra woofer cone surface area results in richer, fuller bass. The woofer's  butyl rubber surround damps unwanted resonance and provides exceptional durability. A 1" fluid-cooled UltraSilk® dome tweeter offers smooth, detailed highs, plus you can pivot the tweeter for more direct sound in your preferred listening area. Top it off with the included magnetically attached grille and you're good to go. And with weather-resistant design, this speaker can go most places you'd like it to, indoors or out. Plus, it's covered by Niles' lifetime warranty.

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Shop our selection of in-wall speaker wire.

Product Highlights:

  • frequency response 50-21,000 Hz (± 3dB)
  • 1" UltraSilk® fluid cooled pivoting dome tweeter
  • 8" polypropylene woofer with rubber surround
  • handles up to 140 watts
  • 8-ohm impedance
  • spring-tensioned clips for simpler installation
  • weather-resistant design
  • paintable white magnetic grille
  • optional square grille
  • cutout diameter: 9-3/4"
  • mounting depth: 4-5/8"
  • warranty: lifetime
  • Our 60-day money-back guarantee

Niles CM8MP Reviews

Hands-on research

What's in the box?

Download owner's manual

  • Two-way ceiling mount speaker
  • White grille
  • Template
  • Installation Guide
  • Warranty card
  • Caution card

Features and Specs

Enclosure Type In-ceiling
Video Shielded No
Tweeter Dome
Midrange Size N/A
Woofer Size 8
Woofer Composition Polypropylene
Woofer Surround Butyl rubber
Power Range (Watts) 10-140
Sensitivity ---
Impedance (Ohms) 8
Frequency Response 50-21kHz
Connector Type Spring clip
Bi-Amp Inputs No
Parts Warranty Lifetime
Labor Warranty Lifetime

Product Research


Overview: The Niles Audio CM8MP Ceiling Mount speaker is designed for multi-purpose applications, and non-primary listening areas. It can be used as a left or right speaker in a stereo configuration, or left, center, or right in a home theater application. The CM8MP comes with a magnetically-attached paintable metal grille.

Note: The CM8MP is packaged as a single speaker.

Drivers: The CM8MP has a light, but strong 8" polypropylene cone woofer. The integrated woofer/baffle design enhances the low frequency response, and allows you to mount an 8" speaker in locations where many competitor's speakers with the same frame diameter can only use a 6-1/2" driver. The 1" fluid-cooled UltraSilk soft dome tweeter provides clear, detailed highs and a focused high frequency sound. The proprietary bridge-mounted pivoting tweeter adjustment lets you aim the sound up to 20° in any direction.

Grille: The CM8MP includes a 11-5/16" diameter MicroThin grille, which attaches magnetically to the speaker. The 1/4" thick grille is easy to install, and blends with the room's aesthetics. It is rust-resistant, and paintable to match any décor. An optional SG8C square grille is also available, if desired.

Weather-Resistant: The frame, speaker, and grille are weather-resistant, so you can install the speaker in moist environments, including bathrooms and outdoors under eaves.

Speaker Terminals: The CM8MP is equipped with spring clip terminals, which can accept up to 12-gauge speaker wire. For wire runs of less than 80 feet, 16-gauge wire is recommended. You should use 14-gauge wire for runs of 80-200 feet, and 12-gauge wire for runs over 200 feet.

Note: When running speaker wire inside walls or ceilings, special jacketed cable (CL-2 or CL-3) should be used to protect the wire and for fire prevention. If unsure, you should consult your local building inspectors about code compliance requirements.

Installation: Installing the speaker requires a 9-3/4" cutout. The speaker requires a depth of 4-1/8" behind standard 5/8" drywall. There are three spring-loaded mounting clamps with screws that tighten from the front.

Our Product Research Team

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