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Monitor Audio CWT140

CWT Series in-wall/in-ceiling speaker with 4" woofer (Round Grille)

1 Review | 3 questions - 5 answers

Item # 893CWT140R

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159.99 each


Our take on the Monitor Audio CWT140

Sure, we've got custom-install speakers from Monitor Audio that are packed with even more high-end technologies than the CWT140, but this slim, stealthy model delivers what we think many people will find to be a really useful combination of installation convenience and performance features.

The "sweet spot" of performance and convenience

Sure, we've got custom-install speakers from Monitor Audio that are packed with even more high-end technologies than the CWT140, but this slim, stealthy model delivers what we think many people will find to be a really useful combination of installation convenience and performance features.

Discreet, easy-to-install design

Monitor Audio CWT140

Choose the CWT140 with a round or square grille to match your application and preference.

All the models in Monitor's CWT (Ceiling/Wall Trimless) Series measure less than 4" deep and come with your choice of round or square paintable grilles. Add to that a splash- and humidity-proof design, and that means you can use these speakers in just about any application around your home. Monitor's Tri-Grip® mounts make it easier to fasten the speaker in your ceiling or wall and ensure a tight seal.

Great sound for your custom-installed system

The CWT140 offers impressive performance thanks to Monitor's ingenious driver designs. Take, for example, the advanced gold dome tweeter. It's the same one that Monitor uses in many of its traditional cabinet-style speakers, crafted from a high-tech aluminum/magnesium alloy and treated with an anodized layer of gold for even smoother sound. The tweeter pivots, so you can aim the highs toward your favorite listening spot. A 4" polymer cone woofer dishes out detailed mids and tight midbass.

Got wire?

Most speakers don't include any. Read more about in-wall wiring.
Shop our selection of in-wall speaker wire.

What's in the Box:

  • In-ceiling speaker
  • Round grille
  • Paint skim
  • Installation Guide
  • Important Safety Instructions
  • MountingTemplate

Product Highlights:

  • "Trimless" design features an unobtrusive frame and low-profile grille for discreet installation
  • pivoting 1" gold dome C-CAM® (Ceramic-Coated Aluminum/Magnesium) tweeter for detailed sound and extended high-frequency response
  • 4" MMP® II (Metal Matrix Polymer) woofer
  • recommended amplifier power: 10-50 watts
  • frequency response: 75-30,000 Hz
  • sensitivity: 85 dB
  • impedance: 6 ohms
  • patented Tri-Grip® mounting system ensures maximum surface seal for better bass and midrange clarity
  • paintable removable magnetic steel grille
  • overall size (including grille): 7-1/8" diameter
  • cutout diameter: 5-7/8"
  • shallow mounting depth of 3-7/8"
  • weight: 2-5/8 lbs.
  • warranty: 5 years
  • Our 60-day money-back guarantee

Monitor Audio CWT140 Reviews

Average Customer Review(s):

(1 Review)

Monitor Audio CWT140

Nicholas from St Augustine, FL on 1/29/2017

Crutchfield Customer Review (What's this?)

Great speakers and easy to set up in the ceiling, had four to fit and the square grill which is magnetic saved the day. The builder had made the prewiring close to the stud and was square. These have three mounting lugs so I was able to avoid the stud and still use the sheet rock original square shape. Great sound as well.




Hands-on research

Features and Specs

Quantity in Package Single
Tweeter Dome
Midrange Size N/A
Woofer Size 4
Cutout Size 5.875
Woofer Composition Polymer
Woofer Surround Rubber
Power Range (Watts) 10-50
Sensitivity 85 dB
Impedance (Ohms) 6
Frequency Response 75-30kHz
Connector Type Spring post
Bi-Amp Inputs No
Enclosure Type In-ceiling
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research


Two-Way Speaker Design: The Monitor Audio Custom Install series CWT 140 (Round) in-ceiling speaker features a two-way driver design with a 1" C-CAM gold dome pivoting tweeter and a 4" MMP II midrange/midbass woofer.

  • C-CAM Gold-Dome Tweeter: The gold dome tweeter is formed from a ceramic-coated aluminum/magnesium alloy, gold anodized to a specific thickness for ideal stiffness and damping characteristics. Its new profile and surround geometry have been developed using advanced modeling tools, to provide the optimum qualities for accurate sound reproduction. The new design moves the first order of breakup to beyond 35kHz, producing a linear response way beyond audibility, which matches the wide frequency bandwidth available from HD music and cinema sound formats. The gold dome is thinner, lighter, more rigid and therefore more efficient than domes made from other materials which are prone to distortion in the audio band.
  • MMP II Midrange/Midbass Woofer: The Metal Matrix Polymer (MMP II) driver cone has a polypropylene base loaded with metallic particles to offer a rigid and responsive structure. They are manufactured using a sophisticated high-pressure injection process, which modulates cone thickness at critical points to optimise stiffness and consistency, resulting in a superior sonic performance.

Trimless Grille: The CWT 140 (Round) in-ceiling speaker features a round "Trimless" steel-mesh grille that is held in place by high strength Neodymium magnets covering the entire speaker for a true trimless, stealth look. The grille is paintable to blend with the living environment; additional scrim material is provided for trouble free painting.

Tri-Grip Fixing System: Monitor Audio's innovative Tri-Grip fixing system is easier to install than conventional clamping schemes but provides three times the surface area and a better surface seal, maximizing bass response and midrange clarity. The Tri-Grip fixings are made from a tough re-enforced polymer, giving a secure installation.

Note: This Custom Install series loudspeaker can only be fixed into drywall with a thickness of up to 1.75".

Spring-Post Terminals: The Monitor Audio CWT 140 (Round) is fitted with two spring-post terminals to connect your speaker wire. The spring-post terminals which accept bare wire (up to 10AWG) and angled pin-connectors.

Protective Covers: The CWT 140 (Round) features dust protection covers that are designed to prevent the ingress of dirt or dust into the driver and crossover.

Moisture & Fire Resistant: The Custom Install series in-ceiling speaker is splash and humidity proof for installation in shower rooms or pool areas. It also uses fire retardant materials specified to UL-94 VO rating.

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 verify what’s in the box, 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.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Ratings, Size and Ringo's recommendation [ DAVID  Dec 18, 2016 ]
Great Value and Good Reviews [ Jeff  Feb 07, 2017 ]

3 questions already asked

The frame of the Monitor Audio CWT140 speakers measures 7-1/8" diameter. The cutout on our site listed at 5-7/8" is the minimum size hole it will fit into; so a 6" hole would be ideal. Provided the mounting area you're using has sufficient depth (at least 3-7/8"), you shouldn't have any issues with the installation you described. I hope that helps. My Bio: [ Larry  Jul 20, 2016 ]  Staff
This is actually a standard style speaker. Some in-ceiling speakers do have stereo inputs. Those will be labeled as "In-ceiling stereo input speaker". [ Jeff  Dec 12, 2014 ]  Staff
It can fit into a 3-7/8" deep mounting hole; and the speaker itself measures 4-1/8" deep (with the grille). I hope that helps. My Bio: [ Larry  Jul 06, 2016 ]  Staff
The mounting depth is 3.86". I hope that helps! My Bio: [ Ryan  Jul 06, 2016 ]  Staff
I am so sorry. It was put in a while ago and I don't know the answer to your question. But they are terrific! [ Jane  Jul 01, 2016 ]

Looking for more? Check out the next model in this lineup.

Monitor Audio CWT-160R ea

Get a 6" woofer for bigger sound with better bass

The Monitor Audio CWT160 offers these features:

frequency response of 60-30,000 Hz

higher 88 dB sensitivity

higher power handling, up to 70 watts