The most compact in-ceiling speaker in the MartinLogan Motion CI series; the MC4 is also one of the most versatile. The stunning clarity of its Folded Motion Tweeter paired with a lightweight woven fiberglass woofer all wrapped up in a built-in enclosure means you get incredible, and predictable sound exactly where you want it. Perfectly suited for a whole house music system, a dedicated home theater or even as a low-profile height effect channel, the MC4 is a fantastic all-around performer. All MartinLogan Motion CI Series speakers feature our signature Folded Motion Tweeter or FMT. This innovative piece of audio technology provides incredible detail, precise clarity, clean output and high efficiency in a small but mighty package. Pairing this tweeter with lightweight woven fiberglass woofers means that Motion CI delivers a clean and balanced sound that is perfectly suited for any application. Whether you listen to music, movies or a little bit of everything, Motion CI gives you a true high-end audio experience at an affordable price. To round out the assortment, pre-construction brackets are available for all models, and all in-ceiling models have square grilles and retrofittable back enclosures available separately.
Q: What is the diameter of the cutout needed for installation?
A: You will need a cutout diameter of 4.89 inches for installation.
Q: What is the minimum frequency response for this speaker?
A: The minimum frequency response for this speaker is 90 hertz.
Q: What is the peak power handling of this MartinLogan speaker?
A: The peak power handling for this speaker is 120 watts.
Q: How many tweeters does this speaker have?
A: This speaker has one tweeter.
Q: What material is used for the tweeter in this MartinLogan speaker?
A: The tweeter in this speaker is made of polyethylene.
Q: Does this MartinLogan speaker come with a built-in enclosure?
A: Yes, the MC4 speaker has a sealed enclosure integrated into its design.

The most compact in-ceiling speaker in the MartinLogan Motion CI series; the MC4 is also one of the most versatile. The stunning clarity of its Folded Motion Tweeter paired with a lightweight woven fiberglass woofer all wrapped up in a built-in enclosure means you get incredible, and predictable sound exactly where you want it. Perfectly suited for a whole house music system, a dedicated home theater or even as a low-profile height effect channel, the MC4 is a fantastic all-around performer. All MartinLogan Motion CI Series speakers feature our signature Folded Motion Tweeter or FMT. This innovative piece of audio technology provides incredible detail, precise clarity, clean output and high efficiency in a small but mighty package. Pairing this tweeter with lightweight woven fiberglass woofers means that Motion CI delivers a clean and balanced sound that is perfectly suited for any application. Whether you listen to music, movies or a little bit of everything, Motion CI gives you a true high-end audio experience at an affordable price. To round out the assortment, pre-construction brackets are available for all models, and all in-ceiling models have square grilles and retrofittable back enclosures available separately.

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The 4th generation Motion XT Series ushers in a new era of design and aesthetics for MartinLogan. The three modern, yet timeless, colorways can compliment any room while being a focal point if so desired. Motion XT evokes a unique look and sound, pairing high-performance woofers with exclusive Folded Motion Tweeter technology, a staple of MartinLogan products. The Motion Waveguide enhances the Controlled Dispersion of the Gen2 Folded Motion XT Tweeter to a high precision 45°(Vertical) by 90°(Horizontal) to accommodate a wide range of seating while reducing performance robbing floor and ceiling reflections within the environment.

Get high-quality sound in challenging spaces with this KEF speaker. It uses patented technology to deliver audio evenly throughout a room, and it's resistant to damage from moisture and UV light, allowing versatile placement options. This KEF speaker has a shallow mounting depth and thin bezel for easy and unobtrusive installation.
| Pros for MartinLogan - Motion Series CI, 4.5" Midrange with Folded Motion Tweeter, 2-Way In-Ceiling Speaker with Integrated Backbox (Each) - Paintable White | |||
|---|---|---|---|
| Sound Quality | Sound Quality, Tweeter, Installation | Sound Quality, Tweeter, Bass | There were no pros for this product— |
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
I have the SLMs for my LCR and needed surround speakers. My couch is against the back wall and I didn't have room in the walls to run wires. Since I was limited in options and my wife didn't want large speakers, I decided on the ML in-ceilings. Before these became available, I tried the IC3's. I connected them to my receiver to see how they sounded with the SLMs and found them to be flat and inefficient. I returned them in favor of the MC4s. The MC4s were a huge improvement. Having the ribbon tweeter, the sound is much brighter and more efficient. They blend in much better with the SLMs. With a small midrange woofer, I was realistic about the expectations. Overall, they sound great. My only complaint has to do with the installation. The mounting tabs were not designed for thicker ceilings. I had to go in the attic and chisel out the slats in the ceiling to get the tabs to turn and grab. This was extra work I didn't expect.
MIke Posted
Sounds great for ambient usage and can get decently loud. Especially nice for the size compared to other larger options.
RdwR Posted
I have the ML motion bookshelves, center, and 5 1/2 surrounds. They are some of the best speakers I've ever heard, and in my opinion well worth their price. These in ceiling speakers however...are not like the rest. They're just not practical given their extremely limited range. Nothing sounds "complete" coming from these speakers alone. Deep voices, drums, a train, anything that needs a full range just gets cut right off at the mids. The mids and highs coming from the tiny speaker and folded tweeter are fantastic...but again, everything sounds "cut off" off by the limited lows. I was planning on using these as Atmos height speakers, but returned them because I don't even see them as being useful for things like helicopters flying overhead in the Atmos height speakers. If you're cutting your ceiling or wall to install a pair of speakers, definitely look elsewhere; especially for this price.
Zubikov Posted