The KEF LS Luxe in Eclipse Black finish, a BMC cabinet sculpted by Ross Lovegrove, unlike anything else in the LS series.KEF LS Luxe — The Most Ambitious Wireless Speaker in the LS Series
Few lineups in high fidelity are as consistent as the KEF LS series. From the LS3/5A, born in collaboration with the BBC in the 1970s, to the LS50 Wireless II that arrived in 2021, each iteration has asked the same fundamental question: how far can an active speaker go if given the right means? The LS Luxe is the most radical answer KEF has ever given, that of a compact wireless speaker that does not merely seek to improve what exists, but rethinks the entire concept from scratch.
The LS50 Wireless II has defined for several years what a compact active speaker can offer, and in many ways continues to do so today. The LS Luxe does not position itself as a replacement, but rather as an additional step that pushes the ceiling for the category. As such, it takes its own place within the lineup, alongside the LS60 Wireless and the LSX II.
A Design by Ross Lovegrove
KEF could have handed the LS Luxe to an industrial design agency, or reused existing concepts. The company instead chose to call on Ross Lovegrove, a Welsh designer whose work is held in the permanent collections of MoMA in New York, the Centre Pompidou in Paris and the Design Museum in London. This collaboration between Lovegrove and KEF is not new. He designed the Muon in 2007, a sonic sculpture in extruded aluminum that remains one of the most immediately recognizable speakers in the history of audio design.
The KEF MUON, sculpted by Ross Lovegrove. Where form meets function. One of 100 pairs produced.The LS Luxe is different in nature. It is a product aimed at the broader market, not a hyper-limited collector's piece, but the formal rigor is the same. The cabinet is made of BMC (Bulk Molding Compound), a thermoplastic composite material used in aerospace for its rigidity and low mass. Its form is entirely rounded, with no right angles and no sharp edges, preventing the diffractions that color the sound at cabinet boundaries and degrade the stereo image.
The LS Luxe are available in three finishes: Eclipse Black, Mineral White and Dusk Titanium. Dedicated S-LUXE floor stands are also available separately, designed specifically for the proportions of the LS Luxe and its rounded base.
A 6.5-Inch 12th-Gen Uni-Q and Why It Matters
The KEF Uni-Q driver is one of the few genuine innovations of the decade in sound reproduction. The principle involves positioning the tweeter at the exact center of the woofer, so that both drivers share a common acoustic emission point. The advantage is perfectly coherent dispersion across the full spectrum, which allows the speaker to sound the same regardless of listening position.
In the LS50 Wireless II, the 12th-generation Uni-Q driver measures 130 mm (5.25 inches). For the LS Luxe, KEF developed an entirely new version of that same driver in 165 mm (6.5 inches), recalibrated from the ground up for this new cabinet. The size difference matters. The larger driver moves more air, extends naturally lower in the bass and reaches higher sound pressure levels before hitting its mechanical limits. The LS Luxe's lower cutoff frequency at ±3 dB is 42 Hz, a real, measurable and audible gain across virtually every musical genre.
MAT (Metamaterial Absorption Technology), developed jointly by KEF and the University of Exeter, is integrated behind the tweeter. It is worth establishing that the rear face of any tweeter emits acoustic energy toward the inside of the cabinet; if that energy is not absorbed, it superimposes itself on the direct signal in the form of coloration and phase distortion. This is where MAT comes in. It absorbs 99% of this parasitic energy, compared to barely 60 to 70% for a conventional absorptive enclosure. The tweeter operates in near-total acoustic silence on its rear face, which translates into a clarity and high-frequency resolution that is difficult to achieve by other means. The driver chassis is also mechanically decoupled from the cabinet to minimize vibration transfer.
Power Beyond Its Size
The LS Luxe delivers 380 W of amplification per speaker, with 280 W in Class D for the woofer and 100 W in Class A/B for the tweeter, for a total of 760 W across the pair. That is a considerable power reserve for a speaker of this size, and it is not there to pad a spec sheet. It allows a 165 mm driver to be driven with enough control and headroom to reach 110 dB of maximum sound pressure without audible compression.
But the amount of power is only part of the equation. What sets the LS Luxe further apart is how that power is applied to the driver. Current-drive amplification controls the voice coil through a current signal rather than a voltage signal. The reason this matters: most driver nonlinearities, and therefore a significant portion of harmonic distortion, are linked to impedance variations. Current drive is inherently insensitive to these variations, which results in a less colored, more direct reproduction.
VECO (Velocity Control Technology) adds an additional layer of control. An integrated sensor measures the actual velocity of the driver cone in real time and compares that measured movement against the target signal. Any deviation, whether caused by mechanical nonlinearities of the suspension, voice coil distortion or cabinet resonances, is corrected before it can be perceived. This is a feedback loop applied directly to the speaker's mechanics, not only to the electrical signal.
The MIE (Music Integrity Engine) completes this system with a set of DSP algorithms developed and calibrated specifically for the LS Luxe. Together, VECO and MIE allow the LS Luxe to achieve a frequency response of 42 Hz to 28 kHz (±3 dB), a remarkable performance for a speaker of this size.
Connectivity and Streaming
The LS Luxe uses the KEF W2 (Wireless 2) platform, which handles both the communication between the two speakers in the pair (the interspeaker connection) and network connectivity. By default, both speakers communicate wirelessly at 24-bit/96 kHz. Using the included RJ45 cable (a longer version is sold separately) switches the interspeaker link to 24-bit/192 kHz. The audio source, along with all physical inputs, always remains with the primary speaker.
On the physical inputs side, the LS Luxe has an HDMI eARC input, along with optical, coaxial and 3.5 mm auxiliary inputs. A subwoofer output is available on each speaker, a fairly unique design that offers significant installation flexibility. There is a natural pairing with subwoofers such as the KC62 or the KC92, though any model can be used.
Network streaming supports high-resolution formats up to 384 kHz/24-bit. AirPlay 2, Google Cast, Bluetooth 5.3, Spotify Connect, TIDAL Connect, Qobuz Connect, Amazon Music and Deezer are all natively integrated. Roon Ready compatibility is announced for 2027; if Roon is essential right now, the LS50 Wireless II already supports it natively.
The KEF Connect app handles initial setup and daily control. Normal mode simply asks for the distance to the rear wall and the room type to apply the appropriate acoustic compensation. Expert mode opens a full parametric equalizer for users who prefer manual calibration. A physical remote control is included in the box, and the primary speaker has a USB-C port reserved for charging a mobile device.
Two-piece active stereo system. 12th-generation 165 mm Uni-Q driver with MAT, VECO and Music Integrity Engine. 380 W amplification per speaker (280 W Class D + 100 W Class A/B). Response from 42 Hz to 28 kHz (±3 dB), 110 dB max SPL. HDMI eARC, optical, coaxial, 3.5 mm jack. AirPlay 2, Google Cast, Bluetooth 5.3, Qobuz Connect, TIDAL Connect. Available in Eclipse Black, Mineral White and Dusk Titanium.
Frequently Asked Questions
What is the difference between the KEF LS Luxe and the LS50 Wireless II?
First, the price, which reflects a real technological gap. The LS Luxe carries a 165 mm (6.5-inch) Uni-Q driver versus 130 mm (5.25 inches) in the LS50 Wireless II, nearly double the radiating surface. The Luxe integrates three technologies absent from the LS50 Wireless II: VECO, MIE and current-drive amplification. Its BMC cabinet sculpted by Ross Lovegrove is in a different aesthetic category altogether. The difference in listening is consistent with those differences on paper; the LS Luxe is more authoritative in the bass, more resolved in the midrange and treble, and capable of higher sound pressure levels without compression. The LS50 Wireless II holds one specific advantage: Roon Ready compatibility, available now, whereas the LS Luxe will not offer it until 2027.
| LS50 Wireless II | LS Luxe | |
|---|---|---|
| Main driver | 12th-gen Uni-Q, 130 mm | 12th-gen Uni-Q, 165 mm |
| Power per speaker | 380 W | 380 W |
| VECO + MIE | — | ✓ |
| Frequency (±3 dB) | 45 Hz – 28 kHz | 42 Hz – 28 kHz |
| Max SPL | 108 dB | 110 dB |
| Subwoofer output | Primary speaker only | Both speakers |
| Roon Ready | ✓ (available) | Expected 2027 |
| Price at Fillion | $3,800 CAD | $5,499.99 CAD |
Do the LS Luxe need a subwoofer?
Necessary? No, but certainly possible. An extension of 42 Hz at ±3 dB is sufficient to reproduce the bulk of the low-frequency content in virtually any recorded repertoire. For music with pronounced sub-bass content, for home cinema use, for large rooms, or simply by personal preference, adding a subwoofer noticeably improves the physical sensation in the lower spectrum. With a subwoofer output on each speaker, installation flexibility is complete.
How do I connect the LS Luxe to a television?
The recommended connection is HDMI eARC, available on most recent televisions. It is the most direct path, transmitting a high-quality signal and allowing volume control from the television remote. If your television does not have HDMI eARC or ARC, the optical and coaxial inputs on the LS Luxe are available as alternatives. For a setup oriented more toward television than music, the KEF XIO soundbar ($2,800 CAD) is a more compact alternative, easier to integrate beneath a screen, on the same KEF W2 platform.
Are the LS Luxe compatible with Roon?
Not yet. KEF has announced Roon Ready compatibility for the LS Luxe, but it is scheduled for 2027. In the meantime, Roon users can use Roon's Google Cast output as an interim solution, which is functional but limited to 24-bit/96 kHz.
Do the LS Luxe require an external amplifier?
No. The LS Luxe are a complete active system with an integrated amplifier (380 W per speaker), DAC, network chip and DSP. No external amplifier, receiver or preamplifier is required. A Wi-Fi or Ethernet network connection and an audio source are all that is needed. For a listener who already owns an amplifier and prefers passive speakers, the LS50 Meta is an interesting alternative in the LS catalogue to consider.
How should I position the KEF LS Luxe in my room?
The KEF Connect app offers two configuration levels. In Normal mode, enter the distance to the rear wall and the room type, and the speaker will automatically apply the necessary acoustic compensation. In Expert mode, a full parametric equalizer allows precise manual calibration. As a general rule, allow 20 to 40 cm of clearance between the rear of the speaker and the wall, with a toe-in angle of 10 to 20 degrees toward the listening position. The tweeter should be approximately at ear height; the dedicated S-LUXE stands or compatible floor stands can achieve this ideal positioning.
The KEF LS Luxe are available at Fillion Électronique. Discover the complete KEF active speaker lineup online or in person at our Montreal store.
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