The DI Series feature Definitive Technology's most advanced technologies such as BDSS drivers and pivoting Pure Aluminum dome tweeters for spectacular audio performance far beyond traditional flush-mount speakers. Definitive’s exclusive Balanced Dual Surround System (BDSS) driver technology permits these new flush mounts to deliver more bass output and dynamic range than larger drivers. For example, the 4-1/2" driver-based model has the bass and dynamics of a 5-1/4" traditional speaker, while the 5-1/4" performs like a traditional 6-1/2". Pure Aluminum dome tweeter featuring a specially shaped housing that avoids the diffraction distortions of traditional post mounted tweeters, and a sophisticated adjustable crossover network, the DI Series delivers the kind of lifelike sonic performance and broad even dispersion that you've come to expect from Definitive Technology.
Q: Are there any woofers included with this speaker?
A: No, there are no woofers included with this speaker.
Q: What material is the tweeter made of?
A: The tweeter is made of aluminum material.
Q: Does this speaker have an adjustable crossover?
A: Yes, this speaker has an adjustable high-definition crossover.
Q: Is this speaker suitable for outdoor use?
A: No, this speaker is designed for indoor use only.
Q: What is the peak power handling of this speaker?
A: The peak power handling of this speaker is 150 watts.
Q: What is the sensitivity of this speaker?
A: The sensitivity of this speaker is 88 decibels.
Q: Does this speaker require speaker wire?
A: No, speaker wire is not included with this speaker.

The DI Series feature Definitive Technology's most advanced technologies such as BDSS drivers and pivoting Pure Aluminum dome tweeters for spectacular audio performance far beyond traditional flush-mount speakers. Definitive’s exclusive Balanced Dual Surround System (BDSS) driver technology permits these new flush mounts to deliver more bass output and dynamic range than larger drivers. For example, the 4-1/2" driver-based model has the bass and dynamics of a 5-1/4" traditional speaker, while the 5-1/4" performs like a traditional 6-1/2". Pure Aluminum dome tweeter featuring a specially shaped housing that avoids the diffraction distortions of traditional post mounted tweeters, and a sophisticated adjustable crossover network, the DI Series delivers the kind of lifelike sonic performance and broad even dispersion that you've come to expect from Definitive Technology.

Upgrade your entertainment experience with the Sonance MAG6R 6-1/2" In-Ceiling Speakers, a premium flush-mount solution for home theater systems, media rooms, and whole home audio. Engineered for seamless installation and sonic excellence, this pair of in ceiling speakers delivers dynamic, wide-dispersion sound that enhances everything from movie nights to background music. Each speaker features a 6.5" glass fiber woofer and a 1" ferrofluid-cooled silk dome tweeter, both pivoting independently to optimize directionality. Whether you're using them in a Dolby Atmos surround sound system, TV audio setup, or home audio ceiling speakers configuration, MAG6R provides crisp highs, smooth mids, and impressive low-end clarity. The micro-trim magnetic grille offers a clean, flush mount ceiling speaker aesthetic and can be painted to match your décor. Installation is quick and secure thanks to Sonance’s Roto-Lock mounting system, making them an ideal fit for both new construction and retrofit applications. With 8-ohm nominal impedance, 45Hz–20kHz frequency response, and 125W peak power handling, these 6 inch in ceiling speakers are built for performance and versatility. Whether you're building a custom home theater in ceiling speaker array or expanding a surround sound system, MAG6R delivers reference-quality sound that blends beautifully into any ceiling. Offered exclusively at Best Buy, MAG6R brings Sonance’s legendary performance to your favorite living spaces.

The smaller of the two “LCR” models in the Motion XT CI series, the XTW5-LCR functions equally well as a center, front or surround channel, or anywhere higher performance, higher output capability and/or a more rectangular shape is desired. A perfect complement for a flat panel TV or projector screen; the XTW5-LCR allows for flexible placement and incredible performance. Its FMT XT tweeter can be rotated to help create the sound dispersion that works best for your space. The MartinLogan Motion XT CI series takes performance to the next level over Motion CI. The Folded Motion XT tweeter gives each model in the Motion XT series even more of the clarity, output, and efficiency that the standard size FMT is famous for. With Motion XT, we wanted to increase all aspects of performance over the Motion series, so we didn’t just stop at the tweeter. All Motion XT models feature woven Kevlar woofers for increased rigidity and lightness which translates into better sound. In addition to the larger tweeter, and lighter, stronger woofers, MartinLogan’s design and engineering team has fitted the Motion XT series with a more substantial chassis to strengthen the speaker and provide a more accurate sound, like a better cabinet on a traditional speaker. With Motion XT CI, the difference is in the details. No matter which Motion XT CI speaker you choose for your room, rest assured they are designed to provide a consistently high level of performance and can easily be used with other MartinLogan speakers to make creating the perfect system for your unique listening space that much easier.

Experience elevated home audio with the Definitive Technology Dymension CI DC-65 MAX In-Ceiling Speaker, meticulously crafted for exceptional sound quality. This IP55-rated speaker features a 6.5" pivoting woofer, lightweight yet rigid and mineral-filled, along with patented BDSS and Linear Response Waveguide technologies, ensuring unparalleled sonic precision. The versatile 1” Aluminum Oxide Dome Tweeter delivers distortion-free highs, complemented by its aimable design for precise sound direction. Its sleek aesthetic integration seamlessly blends into your room's decor, featuring integrated frames, paintable grilles, and flush-mount installation, preserving your space's elegance. Home theater enthusiasts can pair this speaker with timbre-matched Definitive Technology speakers, including Dymension, Dymension CI, Mythos, and Descend Series subs (sold separately), creating a high-performance home theater system with seamless sound coherence. Effortless setup is guaranteed with toolless installation utilizing pivoting 'dog' arms, along with pre-construction brackets (sold separately) available for all Dymension CI models, reflecting Definitive Technology's unwavering commitment to innovation, engineering excellence, and iconic design in audio speakers and premium home entertainment systems. Enjoy a sound experience that transcends ordinary boundaries and immerses you in sonic perfection, making every moment truly exceptional.
| Pros for Definitive Technology - DI Series 4-1/2" Round In-Ceiling Speaker (Each) - White | |||
|---|---|---|---|
| Sound Quality | Sound Quality, Installation, Price, Ease of use, Bass | Sound Quality | There were no pros for this product— |
| Cons for Definitive Technology - DI Series 4-1/2" Round In-Ceiling Speaker (Each) - White | |||
| There were no cons for this product— | Depth, Size, Weight | There were no cons for this product— | There were no cons for this product— |
Customers praise the DI Series 4-1/2" Round In-Ceiling Speaker (Each) for its excellent sound quality. Many customers have noted that the speakers sound even better when playing music.
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 bought 2 of these speakers to use as in-wall surround speakers in a 5.1.4 setup. These speakers sound great as surround speakers, but sound even better when playing music. During parties I set my Denon AVR-x6700h to all channel stereo and these little speakers play loud and clear. I wanted to get the 6.5r speakers, but unfortunately they did not fit in the area I wanted them because of stud placement. I bought the 4.5R because that is all I could fit, but was very pleasantly surprised when I heard out good these little speakers sound! If you have the room for the 6.5" or 8.5" speakers, obviously get those, but if you can't fit a bigger speaker, these will not disappoint!
Alex Posted
I bought these for overhead speakers for an Atmos set up. I didn't want to clutter up my ceiling with noticeable speakers and these were the smallest I could find. I wasn't loving the fact they aren't the same brand as the rest of my speakers but those would have been 2x as big. I didn't have the appetite for that, esp for basically sound effect speakers. Installed, they look tiny on the ceiling, but do not sound tinny. When sound is directed to them you can't even tell they are coming from the speaker. The sound is well distributed and matches my other speakers well enough.
Tech0 Posted
Pretty good considering how small they are. Look super slick in the ceiling.
Dave Posted