KEF LS60 Wireless – Floorstanding Tower Speaker Pair

KEF LS60 Wireless – Active Loudspeaker System

It will feel like you're inside the game, the film, the music. Refining what immersive experience really means, the LS60 Wireless delivers truly realistic, high-fidelity sound for home entertainment. Its slim, plug and play design, packed with KEF's key technology, offers the whole package: not only does it look as good as it performs, it boasts extensive connectivity options. Celebrating 60 years of innovation in technology, performance and design, LS60 Wireless is KEF's vision of high-fidelity for the future, and as KEF's first wireless tower stereo system, aims to bring high-fidelity sound to more people in their homes. A transportive experience, powered by unequalled engineering.

• 12th Generation Uni-Q driver array
  • 19mm (0.75") vented aluminium dome HF with Metamaterial Absorption Technology (MAT)
  • 100mm (4") aluminium cone MF
• Uni-Core force-cancelling LF: 4 x 135mm (5.25") drivers in Single Apparent Source (SAS) configuration
• 1400W total system power: LF 500W (Class D), MF 100W (Class D), HF 100W (Class AB) per speaker 
• PCM up to 24bit/384kHz, DSD and MQA
• AirPlay 2, Google Chromecast, Roon Ready, Spotify Connect, Tidal Connect, Amazon Music, Qobuz, Deezer
• HDMI eARC, TOSLINK Optical, Digital Coaxial, Analog RCA, Ethernet inputs
• 31 Hz - 24 kHz (±3dB) Frequency Response
• 111 dB Max SPL

Highlights & Key Technologies

The Immersion Engine
It will feel like you're inside the game, the film, the music. Refining what immersive experience really means, the LS60 Wireless delivers truly realistic, high-fidelity sound for home entertainment. Its slim, plug and play design, packed with KEF's key technology, offers the whole package: not only does it look as good as it performs, it boasts extensive connectivity options. A transportive experience, powered by unequalled engineering.

Single Apparent Source (SAS) Configuration
The LS60 Wireless uses the Single Apparent Source driver configuration first seen in KEF's flagship Blade series, in which four LF driver cones are symmetrically placed on the sides of the enclosure around the Uni-Q driver. The acoustical centre of the LF driver array is almost coincident with the Uni-Q, creating a virtual source of sound that comes from one position in space over the entire loudspeaker bandwidth. This allows a narrow cabinet combined with a Uni-Q nearly as wide as the baffle, giving wide horizontal directivity and minimising baffle diffraction. The drivers are so well integrated there is virtually no way to tell when the output of one ends and the next one begins.

12th Generation 4" Uni-Q with MAT
A brand new 12th generation Uni-Q with a 4" (100mm) diameter was developed for the LS60 Wireless. The MF driver cone is aluminium and uses KEF's Cone Neck Decoupler technology to control breakup, while the HF driver uses an aluminium dome with a Tangerine Waveguide to widen directivity and increase sensitivity at high frequencies. A Tweeter Gap Damper controls sound passing into the gap between tweeter and midrange. The rear sound from the tweeter is controlled by KEF's patented Metamaterial Absorption Technology (MAT), a joint development with Acoustic Metamaterials Group, with overall absorption of the rear wave exceeding 99% from 840Hz upwards. The Uni-Q chassis incorporates an integrated vibration decoupling scheme to ensure very little motor vibration reaches the cabinet.

Uni-Core Force-Cancelling LF Drivers
The four LF drivers are arranged into two Uni-Core units. Each Uni-Core is a slim 4.3" (110mm) deep unit housing two 5.25" (130mm) diameter long-excursion LF drivers that share the same motor, using two different voice coil diameters that overlap when moving backwards to save considerable depth — shedding 1.2" (30.5mm) from the baffle width compared to back-to-back drivers of equivalent excursion. Identical drivers mounted in opposing motion provide force cancelling, attenuating cabinet vibration by an astounding -20 dB broadband — equivalent to increasing cabinet mass in a non-force-cancelling system by a factor of 10 — ensuring everything the user hears is the output of the drivers and the cabinet itself is silent.

P-Flex Surround
The LF drivers use a 2nd generation P-Flex surround, a three-dimensionally pleated surround that does not restrict the pistonic movement of the driver or add mass, yet withstands the extreme air pressures inside the sealed cabinet. Its pleated shape unrolls freely with driver displacement while providing much greater geometrical stiffness against internal air pressure, avoiding the buckling and associated distortion of conventional half-roll surrounds.

Smart Distortion Control Technology (SDCT)
The LS60 Wireless is a closed-box loudspeaker relying on DSP equalisation to extend low frequency response with no ports. KEF's proprietary Smart Distortion Control Technology is a hybrid system that indirectly senses cone velocity from the voice coil current, feeding it into a negative feedback loop, combined with a DSP model of the driver that applies pre-correction to compensate for residual non-linearities. This provides a major reduction in distortion and is key to a small speaker producing deep, loud and clean bass.

Intelligent Bass Extension (iBX)
Rather than relying on driver and enclosure design alone, the LS60 Wireless uses high volume displacement drivers, high power and DSP equalisation to extend low frequency response. When "Extra" bass extension mode is selected, the LF section extends down to 26 Hz at normal to high listening levels; at higher levels, an algorithm dynamically controls output to keep the LF drivers safe from mechanical damage and distortion, with a smooth transition that does not detract from listening enjoyment.

Hybrid Amplification
Following statistical analysis of more than 40,000 pieces of real music, KEF specified a 500W amplifier for the LF section, 100W for MF and 100W for HF per speaker. Class D amplifiers were selected for the LF and MF sections for their thermal efficiency and high-fidelity sound quality, while a Class AB amplifier was selected for the HF section for its wide bandwidth and ability to deliver sudden large peaks for true High-Res support. The LF amplifier features the indirect voice coil current feedback sensing loop of Smart Distortion Control Technology.

Phase Correction
Phase Correction compensates for phase distortion by pre-filtering the signal through a special all-pass FIR filter with the reverse phase characteristics to the phase error introduced by the crossover, ensuring sound at all frequencies reaches the listener at the same time. As a 3-way design, the LS60 Wireless expands phase correction into a third driver section, made possible by the symmetrical SAS arrangement. This feature is enabled by default in the KEF Connect app and can be disabled using Expert Mode.

User Equalisation & Subwoofer Integration
DSP allows the user to tailor the listening experience to their room acoustics with Wall Mode, Treble Trim and three Bass Extension modes ("Extra", "Standard", "Less"). The KEF Connect app also allows the addition of subwoofers, with flexibility for a single or dual subwoofers playing combined left and right channel content as well as separate stereo subwoofers; "Basic" mode offers an easy menu of stepped options with preselected low- and high-pass filter values for pairing various KEF subwoofers, while "Expert" mode provides separation of the low- and high-pass filters for fully customisable integration.

Stream Anything
LS60 Wireless streams any source with peerless performance, no matter the music service, podcast or internet radio, delivering high-fidelity sound up to 24bit/384kHz.

Plug and Play Connectivity
LS60 Wireless supports all your wired sources, making it the perfect companion for TV, turntable, game console and more, with comprehensive connectivity including WiFi, Bluetooth, HDMI eARC, Optical, Coaxial and RCA.

Different Rooms, Same Enjoyment
When partnered with other LS Wireless Collection speakers, you can use AirPlay 2, Chromecast or Roon to fill the entire house with the same playlist.

Impossibly Slim Design
With all of KEF's key technologies contained within its iconic slim structure, LS60 Wireless is a speaker system that looks as good as it sounds. Designed by Michael Young and the KEF product design team, it has a small footprint and slim profile so it can sit comfortably in most homes without requiring special listening rooms or awkward positioning.

Details & Specifications

SYSTEM TYPE
Three-way Single Apparent Source Active Loudspeaker System

DRIVE UNITS (per speaker)
Uni-Q Driver Array:
HF: 19 mm (0.75 in.) vented aluminium dome with Metamaterial Absorption Technology
MF: 100 mm (4 in.) aluminium cone
Uni-Core Force Cancelling Driver:
LF: 4 x 135 mm (5.25 in.)

PERFORMANCE
Frequency range (-6dB) measured at 85dB/1m: 26 Hz - 36 kHz (depends on EQ settings)
Frequency response (±3dB) measured at 85dB/1m: 31 Hz - 24 kHz (depends on EQ settings)
Amplifier output power (per speaker): LF 500W, MF 100W, HF 100W
Amplifier class (per speaker): LF Class D, MF Class D, HF Class AB
Max SPL measured at 1m: 111 dB

WIRELESS STREAMING FEATURES
AirPlay 2
Google Chromecast
Roon Ready
UPnP Compatible
Bluetooth 4.2 (per Specification sheet and POS card); Bluetooth 5.0 (per product page)

STREAMING SERVICES
Spotify via Spotify Connect
Tidal via Tidal Connect
Amazon Music
Qobuz
Deezer
QQ Music via QPlay
Internet Radio
Podcasts
(Depends on services availability in different countries)

INPUT RESOLUTION
Network up to 384kHz/24bit
Optical up to 96kHz/24bit
Coaxial up to 192kHz/24bit
HDMI up to 192kHz/24bit
(Depends on source resolution)

INTERSPEAKER CONNECTION
Wireless: all sources resampled to 96kHz/24bit PCM
Wired: all sources resampled to 192kHz/24bit PCM

SUPPORTED FORMAT (all inputs)
FLAC, WAV, AIFF, ALAC, AAC, WMA, MP3, M4A, LPCM and Ogg Vorbis

SUPPORTED FORMAT (network)
MQA, DSD

HOME AUTOMATION SYSTEM
Elan, RTi, Crestron Home, Savant, Control4

INPUTS
Primary speaker: HDMI eARC, TOSLINK Optical, Digital Coaxial, Analog RCA, USB Type A (service), RJ45 Ethernet (network), RJ45 Ethernet (interspeaker)
Secondary speaker: USB Type A (service), RJ45 Ethernet (interspeaker)

OUTPUT
Primary speaker: RCA Subwoofer output
Secondary speaker: RCA Subwoofer output

WIRELESS / NETWORK
Wi-Fi network standard: IEEE 802.11a/b/g/n/ac; IPv4, IPv6
Wi-Fi network frequency band: Dual-band 2.4 GHz / 5 GHz

POWER
Power input: 100 – 240VAC 50/60Hz
Power consumption: 450W (operating power); <2.0W (standby power)

DIMENSIONS & WEIGHT
Dimensions (H x W x D per speaker): 1090 x 212 x 394 mm (42.9 x 8.3 x 15.5 in.) with plinth; 1042 x 130 x 321 mm (41.0 x 5.1 x 12.6 in.) without plinth
Weight (per set): 62.4 kg (138 lbs)

FINISHES
Carbon Black, Titanium Grey, Royal Blue, Mineral White

WHAT'S IN THE BOX
A set of LS60 Wireless
Power cords
Interspeaker Cable
Remote control
Optional floor spikes
Quick Start Guide, warranty and safety information