KEF LS50 Meta vs. MartinLogan Motion 2i

KEF LS50 Meta Bookshelf Speakers MartinLogan Motion 2i Bookshelf Speakers
$1600 $200
Dimensions (H × W × D)
11.90” × 7.90” × 11.00”
302mm × 201mm × 279mm
10.00” × 4.70” × 4.60”
254mm × 119mm × 117mm
Power Type
Passive Passive
Frequency Response
79-28,000 Hz 110-23,000 Hz
ASR Score
4.6 n/a
ASR Score w/Subwoofer
6.7 n/a

Key Takeaways

TLDR Summary: In the high-fidelity arena, the KEF LS50 Meta speakers are lauded for their innovative Uni-Q driver array, delivering a seamless soundstage with pristine midrange and treble clarity. They revel in analytical precision and spacious imaging. Conversely, the MartinLogan Motion 2i speakers boast the brand's signature Folded Motion tweeter, offering an exceptionally fast transient response with detailed highs, paired with a well-balanced bass response. While the LS50 Meta caters to purists seeking aural accuracy, the Motion 2i appeals to those craving articulate highs and a warm, inviting sound signature, each set defining excellence in their sonic territories.

Speaker Comparison

When it comes to high-fidelity audio, the landscape is rich with innovation and quality. Two speakers that have caught the attention of audiophiles worldwide are the KEF LS50 Meta and the MartinLogan Motion 2i bookshelf speakers. Both of these compact powerhouses promise an immersive listening experience, but they approach sound reproduction with their own unique philosophies and technological advancements.

Design and Build Quality

The KEF LS50 Meta speakers carry forward the brand's legacy of exceptional design, boasting a sleek, modern aesthetic with clean lines and a contemporary finish. The speakers are solidly built, with a dense, well-damped enclosure that minimizes unwanted vibrations. Meanwhile, the MartinLogan Motion 2i speakers exhibit an artistic touch with their distinctive curved design and the signature perforated steel grille, which not only protects the drivers but also adds to the speaker's visual allure. While both are beautifully crafted, the LS50 Meta's construction lends itself to a marginally more neutral sound signature due to its constrained layer damping.

KEF LS50 Meta Bookshelf Speakers
KEF LS50 Meta arrow (at

Driver Technology

At the heart of the LS50 Meta's performance is KEF's Uni-Q driver, a marvel that places the tweeter in the acoustic center of the midrange cone. This innovative design creates a more detailed soundstage and improves the off-axis response, allowing listeners to enjoy the same high-quality sound throughout the room. On the other hand, the MartinLogan Motion 2i utilizes the brand's acclaimed Folded Motion tweeter, a design that delivers lightning-fast transient response and an extended frequency range. This allows the Motion 2i to articulate the finer details in music with exquisite precision and minimal distortion.

Sound Performance

The KEF LS50 Meta speakers shine with their balanced and neutral sound profile. They offer a broad and deep soundstage that is hard to match by other speakers in their class. The Meta's low-end is tight and controlled, providing a good amount of punch without overpowering the midrange. In contrast, the Motion 2i delivers a slightly warmer sound, with an emphasis on clarity and articulation, particularly in the high frequencies. The bass is present and well-defined, but those desiring a more substantial low-end might consider pairing them with a subwoofer.

MartinLogan Motion 2i Bookshelf Speakers
MartinLogan Motion 2i arrow (at

Regarding midrange reproduction, the LS50 Meta maintains a clear and present midrange that accurately represents vocals and instruments with minimal coloration. This true-to-source accuracy is especially appreciated by listeners who prioritize a faithful reproduction of their music. Conversely, the Motion 2i's midrange is equally detailed but offers a hint of warmth that can make certain recordings sound more engaging or forgiving, depending on the listener's preference.

When discussing treble, the KEF's Uni-Q driver ensures a smooth and refined high-frequency response, devoid of harshness yet capable of revealing the nuances in complex musical passages. The MartinLogan's Folded Motion tweeter, with its larger surface area, disperses highs with a crispness and agility that can make subtle details pop, offering an airy and open character to the sound that is both exciting and revealing.

In conclusion, the choice between the KEF LS50 Meta and the MartinLogan Motion 2i bookshelf speakers may come down to personal taste and the specific requirements of one's listening space. The LS50 Meta's balanced approach and exceptional soundstage are ideal for those seeking an all-around performer with an emphasis on neutrality and precision. Meanwhile, the Motion 2i's distinctive design and thrilling high-frequency performance cater to listeners who crave detail and a touch of warmth in their sonic palette. Whichever you choose, both speakers stand as testaments to the incredible experiences that modern audio technology can provide to music enthusiasts.

Check Current Prices:

KEF LS50 Meta Bookshelf Speakers
KEF LS50 Meta Bookshelf Speakers
MartinLogan Motion 2i Bookshelf Speakers
MartinLogan Motion 2i Bookshelf Speakers

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Disclaimer: the speaker data listed on this website are correct to the best of our knowledge, but we do not guarantee the accuracy of the data. Please double-check any measurements with the manufacturer before making a final purchasing decision.