Niles CM7BG

In-ceiling speaker

  • Niles CM7BG

    Front (Grille included, not shown)

  • Niles CM7BG


  • Niles CM7BG


Our take on the Niles CM7BG

by Marshall Chase

Niles Audio quality and know-how are built in

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 produced in-ceiling speakers like the CM7BG.

The back story of the "Background" speaker

The CM7BG is part of Niles' "Background" series of in-ceiling speakers. Made to deliver good sound quality at an affordable price, these speakers are a great choice for listening to ambient music and for secondary areas of your home like a guest room.

Bigger woofer for deeper bass

The CM7BG employs a 7" polymer woofer, 1/2" larger than most speakers in its class. The resulting bass response is much fuller as well. Its 1/2" fluid-cooled Kaladex® dome tweeter offers great dispersion so you can hear your music in a wide area. Top it off with the included magnetic snap-on grilel 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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See more info on this item


  • frequency response 58-20,000 Hz (±3dB)
  • 1/2" fluid-cooled dome tweeter
  • 7" polypropylene woofer
  • handles up to 75 watts
  • 8-ohm impedance
  • tri-mount clips for simpler installation
  • moisture-resistant design
  • paintable white magnetic grille
  • optional square grille
  • cutout diameter: 8-1/2"
  • mounting depth: 4-5/16"
  • warranty: lifetime
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure Type In-ceiling
Video Shielded No
Tweeter Dome
Midrange Size N/A
Woofer Size 7
Woofer Composition Polypropylene
Woofer Surround Urethane
Power Range (Watts) 10-75
Sensitivity ---
Impedance (Ohms) 8
Frequency Response 58-20kHz
Connector Type Spring post
Bi-Amp Inputs No
Parts Warranty Lifetime
Labor Warranty Lifetime
Product Research
What's in the box?

Download owner's manual

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

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.


Overview: The Niles Audio CM7BG Ceiling Mount speaker is designed for background music applications in non-primary listening areas. The CM7BG comes with a magnetically-attached paintable metal grille.

Note: The CM7BG is packaged as a single speaker.

Drivers: The CM7BG has a light, but strong 7" polypropylene cone woofer. The integrated woofer/baffle design enhances the low frequency response, and allows you to mount a 7" speaker in locations where many competitor's speakers with the same frame diameter can only use a 6-1/2" driver. The 13mm (1/2") fluid-cooled Kaladex dome tweeter provides wide dispersion of detailed high frequencies.

Grille: The CM7BG includes a 10" diameter MicroPerf 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 SG7C 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 CM7BG is equipped with spring-loaded post 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 8-1/2" cutout. The speaker requires a depth of 3-3/4" behind standard 5/8" drywall. There are three spring-loaded mounting clamps with screws that tighten from the front.

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For a more in-depth review and enhanced detailed information on the Niles CM7BG, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_190CM7BG/Niles-CM7BG.html ).

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