KEF LS50 Meta vs. Monoprice Monolith THX-265B

KEF LS50 Meta Bookshelf Speakers Monoprice Monolith THX-265B Bookshelf Speakers
$1600 $800
Dimensions (H × W × D)
11.90” × 7.90” × 11.00”
302mm × 201mm × 279mm
15.40” × 9.70” × 11.40”
391mm × 246mm × 290mm
Power Type
Passive Passive
Frequency Response
79-28,000 Hz 65-24,000 Hz
ASR Score
4.6 n/a
ASR Score w/Subwoofer
6.7 n/a

Key Takeaways

TLDR Summary: In the realm of high-fidelity audio, the KEF LS50 Meta speakers set a sterling standard with their Uni-Q driver array, delivering precise imaging and a lush soundstage. Conversely, the Monoprice Monolith THX-265B, THX-certified for cinematic sound, offers a more wallet-friendly entry without skimping on power or clarity. The LS50 Meta shines in its articulate midrange and treble purity, while the Monolith impresses with robust bass and dynamic prowess. Choosing between these contenders hinges on one's sonic preference and budget, with the LS50 Meta catering to discerning audiophiles and the Monolith appealing to home theater enthusiasts craving impact.

Speaker Comparison

When it comes to high-fidelity audio, enthusiasts often find themselves comparing apples to oranges, but I believe a comparison is always worth a listen, as it tells you not just about the speakers, but also about what you value in your listening experience. In the world of compact high-performance speakers, two noteworthy contenders demand our attention: the KEF LS50 Meta Bookshelf Speakers and the Monoprice Monolith THX-265B Bookshelf Speakers. Both have their own unique set of strengths, appealing to different segments of the audiophile community.

Design and Build Quality

The KEF LS50 Meta, immediately recognizable by its Uni-Q driver array, is a testament to KEF's dedication to both acoustic innovation and aesthetic beauty. The Meta edition of the LS50 series takes a leap forward with its Metamaterial Absorption Technology, which is designed to reduce distortion and improve clarity. The build quality is superb, with a dense, heavily braced enclosure that exudes a premium feel. On the other hand, the Monoprice Monolith THX-265B sports a more utilitarian and robust look. It's THX certified, meaning it's met stringent standards for performance and reliability. The build is solid, if somewhat less refined in finish compared to the LS50 Meta, but it's still a tank in its own right.

KEF LS50 Meta Bookshelf Speakers
KEF LS50 Meta arrow (at

Sound Performance

The KEF LS50 Meta delivers an impeccable soundstage that is wide, precise, and immersive. The Uni-Q driver creates a 'sweet spot' that feels expansive, making these speakers quite forgiving in terms of placement. The bass is tight and controlled, though it may not dig as deep as some larger competitors. Mids are articulate, and the highs are crisply rendered without being sibilant. Transitioning to the Monolith THX-265B, the sound is forceful and dynamic, courtesy of its THX certification which ensures cinema-grade performance. The bass is more pronounced, thanks in part to the larger 6.5-inch woofer, and it provides a satisfying thump for movies and bass-heavy music. The soundstage is a bit narrower, but it competently maintains clarity and separation between instruments and effects.

When it comes to neutrality and transparency, the LS50 Meta is a star performer. They offer a balanced sound that is true to the recording, which can be revealing of the source material's quality. This characteristic makes them ideal for analytical listening sessions. The Monolith THX-265B, however, leans towards a more impactful, room-filling sound that emphasizes excitement and energy, making it well-suited for movies and engaging music listening experiences.

Value and Versatility

Considering the price point, the KEF LS50 Meta sits at a higher tier. It's a serious investment for serious listeners, offering a near-flagship performance that is hard to match within its size class. For those who appreciate nuance and detail, the LS50 Meta could be seen as a bargain for the level of refinement it provides. The Monoprice Monolith THX-265B offers exceptional value for its price, bringing THX-certified performance to a more accessible level. It's an excellent choice for those who want a taste of high-end audio without breaking the bank, and its performance with movies is particularly commendable.

The versatility of the LS50 Meta is noteworthy, as they play well with a variety of amplifiers and sources. Due to their revealing nature, they pair best with high-quality components that can match their resolution. Conversely, the Monolith THX-265B speakers are a bit more forgiving and easier to drive. Their sound signature doesn't demand top-tier electronics, making them a superb entry point for those building a mid-range system.

In conclusion, the choice between the KEF LS50 Meta and the Monoprice Monolith THX-265B bookshelf speakers comes down to personal preferences and intended use. Those seeking an audiophile-grade listening experience with impeccable soundstage and detail will gravitate towards the LS50 Meta. On the flip side, enthusiasts who prioritize punchy performance and cinematic thrills may find the Monolith THX-265B to be the ideal companion. No matter the choice, both sets of speakers are leaders in their respective categories and exemplify the exciting diversity available to today's audiophiles.

Check Current Prices:

KEF LS50 Meta Bookshelf Speakers
KEF LS50 Meta Bookshelf Speakers
Monoprice Monolith THX-265B Bookshelf Speakers
Monoprice Monolith THX-265B 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.