[{"id":280456888479,"handle":"audio","updated_at":"2025-12-17T15:56:54-07:00","published_at":"2021-12-02T11:21:36-07:00","sort_order":"best-selling","template_suffix":"top-level","published_scope":"global","title":"Audio","body_html":"","image":{"created_at":"2022-01-06T15:53:45-07:00","alt":"audio","width":971,"height":386,"src":"\/\/listenup.com\/cdn\/shop\/collections\/audio.png?v=1641509626"}},{"id":295217234079,"handle":"black-friday","title":"Black Friday","updated_at":"2025-12-17T17:21:07-07:00","body_html":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0495\/6910\/4031\/files\/Black_Friday_1200x628_1200_x_400_px_1_e1881856-abd6-4c0e-a9c3-2db98209ed45.png?v=1763570175\" alt=\"\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e","published_at":"2024-11-07T15:54:06-07:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"blackfriday25"},{"column":"variant_inventory","relation":"greater_than","condition":"0"}],"published_scope":"web","image":{"created_at":"2023-11-15T14:52:52-07:00","alt":null,"width":1200,"height":400,"src":"\/\/listenup.com\/cdn\/shop\/collections\/Black_Friday_1200x628_1200_x_400_px_1.png?v=1763418066"}},{"id":275047350431,"handle":"bookshelf-speakers","updated_at":"2025-12-17T05:08:18-07:00","published_at":"2021-08-12T03:48:01-06:00","sort_order":"best-selling","template_suffix":"default","published_scope":"global","title":"Bookshelf Speakers","body_html":"","image":{"created_at":"2021-08-12T03:47:59-06:00","alt":"Bookshelf Speakers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/category-banner_5ef4e381-2a5f-40c4-9677-5a61b5781337.png?v=1641336216"}},{"id":280460591263,"handle":"home-speakers","updated_at":"2025-12-17T15:56:54-07:00","published_at":"2021-12-02T12:20:57-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"Home Speakers","body_html":"","image":{"created_at":"2022-01-04T15:40:48-07:00","alt":"Home Speakers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/home-speakers.png?v=1641336048"}},{"id":298884563103,"handle":"kef-ls50-collection-ls50-meta-kef-ls50-wireless-ii-ls50c","updated_at":"2025-12-01T05:09:13-07:00","published_at":"2024-04-08T12:53:54-06:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"KEF LS50 Collection - LS50 Meta | KEF LS50 Wireless II | LS50C","body_html":"\u003ch3\u003eKEF LS50 Meta\u003c\/h3\u003e\n\u003cp\u003eImmerse yourself in a world of pure sound with the revolutionary \u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-meta-hifi-bookshelf-speakers\" title=\"KEF LS50\"\u003eKEF LS50 Meta HiFi Bookshelf Speakers\u003c\/a\u003e. Engineered with groundbreaking Metamaterial Absorption Technology (MAT), these speakers redefine precision and emotional engagement in sound reproduction. Experience unrivaled accuracy and immersion with reduced high-frequency distortion by up to 99%, thanks to MAT. The 12th generation Uni-Q with MAT driver array ensures exceptional acoustic accuracy across the entire frequency spectrum, while Driver Performance Optimization minimizes distortion and coloration, delivering exceptional depth and detail in sound. With meticulous design and compatibility with the \u003ca href=\"https:\/\/listenup.com\/products\/kef-s2-speaker-stands-for-ls50-meta-and-ls50-wireless-ii\" title=\"KEF LS50 Stands\"\u003eKEF S2 Floor Stand\u003c\/a\u003e (sold separately), the\u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-meta-hifi-bookshelf-speakers\" title=\"KEF LS50 Meta\"\u003e KEF LS50 Meta HiFi Bookshelf Speakers\u003c\/a\u003e offer a timeless blend of performance and elegance that complements any decor.\u003c\/p\u003e\n\u003ch3\u003eKEF LS50 Wireless II\u003c\/h3\u003e\n\u003cp\u003eElevate your audio experience to new heights with the \u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-wireless-ii-wireless-hifi-powered-speakers\" title=\"KEF LS50 Powered Bookshelf Speakers\"\u003eKEF LS50 Wireless II Powered Speakers\u003c\/a\u003e. Redefining wireless HiFi audio, these speakers offer unparalleled performance, versatility, and convenience. Stream effortlessly from any source with compatibility for AirPlay 2, Google Chromecast, and more. Whether wirelessly or through a wired connection, enjoy pristine sound quality without compromise. With advanced technologies like Metamaterial Absorption Technology (MAT™) and the 12th generation Uni-Q driver, the \u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-wireless-ii-wireless-hifi-powered-speakers\" title=\"KEF LS50 Wireless Speakers\"\u003eLS50 Wireless II\u003c\/a\u003e delivers the most accurate and immersive sound. With attention to detail in design and a user-friendly interface via the KEF Connect App, the \u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-wireless-ii-wireless-hifi-powered-speakers\" title=\"KEF LS50 Speakers\"\u003eLS50 Wireless II\u003c\/a\u003e sets a new standard of excellence in wireless audio. Experience the pinnacle of audio performance with the \u003ca href=\"https:\/\/listenup.com\/products\/kef-ls50-wireless-ii-wireless-hifi-powered-speakers\" title=\"KEF LS50 Wireless Powered Speakers\"\u003eKEF LS50 Wireless II Powered Speakers\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKEF LS50C\u003c\/h3\u003e\n\u003cp\u003eThe \u003ca title=\"KEF LS50C Center Channel Speaker\" href=\"https:\/\/listenup.com\/products\/kef-ls50c-meta-center-channel-speaker\"\u003eKEF LS50C\u003c\/a\u003e is a center channel speaker designed to seamlessly integrate with the LS50 Meta and LS50 Wireless II speakers, ensuring a cohesive surround sound experience. With its Uni-Q driver array and advanced acoustic design, the \u003ca title=\"LS50C Center Channel\" href=\"https:\/\/listenup.com\/products\/kef-ls50c-meta-center-channel-speaker\"\u003eLS50C\u003c\/a\u003e delivers clear and precise dialogue reproduction, enhancing your home theater setup.\u003c\/p\u003e","image":{"created_at":"2024-04-08T12:53:53-06:00","alt":"Shop KEF LS50 at Authorized KEF Dealer - Full Factory Warranty!","width":1800,"height":1800,"src":"\/\/listenup.com\/cdn\/shop\/collections\/20-kef-ls50wirelessii-crimson-red-se-pair-front-angle-0920.jpg?v=1759784009"}},{"id":640425230495,"handle":"kef-speakers","title":"KEF Speakers","updated_at":"2025-12-17T15:57:21-07:00","body_html":"\u003cp\u003eShop all KEF Speakers at Authorized KEF Dealer ListenUp including the KEF Blades, KEF The Reference Speakers, KEF R Speakers, KEF Q Speakers, LS50 Meta Speakers, LS60 Wireless Speakers, LSX II Speakers, KEF In-Wall and In-Ceiling Speakers.\u003c\/p\u003e\n\u003cp\u003eListenUp is proud to be one of the top KEF Speaker Dealers in the US and we have access the entire KEF Speaker lineup. If you are looking to buy KEF Speakers and want to set up a new KEF Speaker System, our KEF Sales Experts are ready to help you on your audio journey. Contact us online or see KEF Speakers in action in any one of our store locations today!\u003c\/p\u003e\n\u003cp\u003eView our \u003ca href=\"https:\/\/listenup.com\/pages\/KEF\" title=\"KEF Brand Page at Authorized Dealer ListenUp\"\u003eKEF Brand Page\u003c\/a\u003e for a breakdown of each KEF Speaker line that we carry.\u003c\/p\u003e","published_at":"2025-03-27T14:57:44-06:00","sort_order":"manual","template_suffix":"","disjunctive":false,"rules":[{"column":"title","relation":"contains","condition":"KEF"},{"column":"title","relation":"contains","condition":"Speaker"}],"published_scope":"global","image":{"created_at":"2025-03-27T14:57:43-06:00","alt":"KEF Speakers - Shop All KEF Speakers at Authorized Dealer ListenUp","width":1392,"height":901,"src":"\/\/listenup.com\/cdn\/shop\/collections\/KEF-Speakers.jpg?v=1743109063"}},{"id":640250413215,"handle":"kef-specials-and-sales","updated_at":"2025-12-14T05:09:27-07:00","published_at":"2025-02-06T11:53:22-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"KEF Specials and Sales 2025","body_html":"\u003cp\u003e\u003ca href=\"https:\/\/listenup.com\/pages\/kef\" title=\"KEF Landing Page at Online Authorized KEF Dealer ListenUp\"\u003eKEF\u003c\/a\u003e Specials and Sales at ListenUp, your destination for high-fidelity audio at unbeatable prices. Throughout the year, ListenUp offers KEF discounts and limited-time deals on a variety of KEF products, including speakers, home theater systems, subwoofers, and more. Whether you're looking for the precision-engineered \u003ca href=\"https:\/\/listenup.com\/collections\/kef-headphones\" title=\"KEF Headphones Landing Page at ListenUp\"\u003eKEF headphones\u003c\/a\u003e for immersive sound on the go or the acclaimed \u003ca href=\"https:\/\/listenup.com\/products\/kef-q150-bookshelf-speakers\" title=\"KEF Q150 Sale at ListenUp\"\u003eKEF Q150 Bookshelf Speakers\u003c\/a\u003e for rich, room-filling audio, this collection delivers premium performance with exceptional savings. Check back often for periodically released special offers on KEF’s most sought-after audio gear.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDon’t Miss Out on Exclusive KEF Deals!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eKEF specials run \u003cstrong\u003eperiodically throughout the year\u003c\/strong\u003e, offering you the chance to save big on \u003cstrong\u003espeakers, home theater systems, subwoofers, and more\u003c\/strong\u003e. Be the first to know when a \u003cstrong\u003enew KEF sale drops\u003c\/strong\u003e - \u003cstrong\u003esign up now\u003c\/strong\u003e for exclusive alerts on limited-time discounts and special offers!\u003c\/p\u003e","image":{"created_at":"2025-02-06T11:53:21-07:00","alt":"KEF Specials and Sales at ListenUp","width":1800,"height":1800,"src":"\/\/listenup.com\/cdn\/shop\/collections\/e842d94f-86c2-42d9-890b-694cf64211a9.jpg?v=1738868001"}},{"id":297969516703,"handle":"kef-wireless-hifi-speakers","updated_at":"2025-12-17T16:03:43-07:00","published_at":"2024-02-29T16:39:44-07:00","sort_order":"manual","template_suffix":"","published_scope":"global","title":"KEF Wireless HiFi Speakers","body_html":"\u003cp\u003eKEF's wireless speakers combine decades of acoustic expertise with modern listening habits, offering the convenience of digital with the emotional depth of true HiFi. The \u003cstrong\u003eKEF LS60 Wireless\u003c\/strong\u003e Immersion Engine provides a truly realistic, high-fidelity sound experience for home entertainment, featuring a slim, plug-and-play design and extensive connectivity options. Meanwhile, the \u003cstrong\u003eLS50 Wireless II\u003c\/strong\u003e and \u003cstrong\u003eLSX II \u003c\/strong\u003espeakers offer all-in-one solutions for streaming from any source, boasting wireless compatibility with AirPlay 2, Chromecast, and more, as well as wired connections for various devices. Whether it's the immersive LS60, the versatile LS50, or the compact \u003cstrong\u003eLSX II LT\u003c\/strong\u003e, KEF's range delivers unparalleled sound clarity and engineering excellence at every price point.\u003c\/p\u003e","image":{"created_at":"2024-02-29T16:39:43-07:00","alt":"Shop KEF Wireless Speakers at Authorized KEF Dealer","width":1800,"height":1800,"src":"\/\/listenup.com\/cdn\/shop\/collections\/23-kef-ls60-carbon-black-group.jpg?v=1743184607"}},{"id":300709740703,"handle":"on-sale","updated_at":"2025-12-17T16:07:27-07:00","published_at":"2024-05-30T09:39:13-06:00","sort_order":"best-selling","template_suffix":"","published_scope":"web","title":"On Sale","body_html":""},{"id":280462000287,"handle":"powered-stereo-speakers","updated_at":"2025-12-17T15:56:54-07:00","published_at":"2021-12-02T13:02:01-07:00","sort_order":"best-selling","template_suffix":"default","published_scope":"global","title":"Powered Stereo Speakers","body_html":"","image":{"created_at":"2022-01-04T16:04:12-07:00","alt":"Powered Stereo Speakers","width":1146,"height":455,"src":"\/\/listenup.com\/cdn\/shop\/collections\/powered-stereo-speakers.png?v=1641337452"}},{"id":301151355039,"handle":"welcome10","updated_at":"2025-12-17T16:13:45-07:00","published_at":"2024-07-02T15:18:25-06:00","sort_order":"best-selling","template_suffix":null,"published_scope":"web","title":"Welcome10","body_html":null}]
The KEF LS50 Wireless II is a fully active stereo speaker system built around Metamaterial Absorption Technology and the 12th‑generation Uni‑Q driver. Powerful built‑in amplifiers (280 W for bass, 100 W for treble) and the Music Integrity Engine deliver dynamic, tightly timed sound. High‑resolution streaming up to 24‑bit/384 kHz plus AirPlay 2, Chromecast, Roon Ready, Bluetooth and HDMI connectivity cover every listening need. Available in stylish finishes, the curved, low‑diffraction cabinets include threaded inserts for KEF S2 stands and dual subwoofer outputs.
Get the Details
Features & Specs
Metamaterial Absorption & Uni‑Q
MAT and the 12th‑generation Uni‑Q driver work together to eliminate unwanted high‑frequency reflections and create a coherent, wide soundstage.
Built‑in Power Amplification
Onboard 280‑Watt Class D and 100‑Watt Class A/B amplifiers deliver room‑filling dynamics while maintaining control and low distortion.
Music Integrity Engine
KEF’s bespoke Music Integrity Engine digital signal processing aligns the drivers’ timing and frequency response for precise imaging and seamless integration.
High‑Resolution Streaming
Supports streaming up to 24‑bit/384 kHz with AirPlay 2, Chromecast, Roon Ready, UPnP and Bluetooth 4.2, and integrates major services like Spotify, Tidal and Amazon Music.
Comprehensive Connectivity
Equipped with HDMI eARC, TOSLINK optical, coaxial, analog auxiliary, RJ45 Ethernet and subwoofer output, plus wireless or wired interspeaker links.
Premium Design & Finishes
A rigid, curved cabinet with colour‑matched ports and matte finishes - adds sophistication and pairs with KEF S2 stands.
MAT and the 12th‑generation Uni‑Q driver work together to eliminate unwanted high‑frequency reflections and create a coherent, wide soundstage.
Built‑in Power Amplification
Onboard 280‑Watt Class D and 100‑Watt Class A/B amplifiers deliver room‑filling dynamics while maintaining control and low distortion.
Music Integrity Engine
KEF’s bespoke Music Integrity Engine digital signal processing aligns the drivers’ timing and frequency response for precise imaging and seamless integration.
High‑Resolution Streaming
Supports streaming up to 24‑bit/384 kHz with AirPlay 2, Chromecast, Roon Ready, UPnP and Bluetooth 4.2, and integrates major services like Spotify, Tidal and Amazon Music.
Comprehensive Connectivity
Equipped with HDMI eARC, TOSLINK optical, coaxial, analog auxiliary, RJ45 Ethernet and subwoofer output, plus wireless or wired interspeaker links.
Premium Design & Finishes
A rigid, curved cabinet with colour‑matched ports and matte finishes - adds sophistication and pairs with KEF S2 stands.
Expert Insight
As an all‑in‑one audiophile solution, the LS50 Wireless II pairs KEF’s groundbreaking acoustic technologies with powerful amplification and a versatile streaming platform. Its user‑centric design offers a wealth of inputs and wireless options, ensuring seamless integration into any modern living space. The result is a compact, elegant system that delivers uncompromised high‑fidelity sound without the clutter of separate components.
Nate M
Brand Manager
Details
KEF LS50 Wireless II Speakers - Moss Green
The KEF LS50 Wireless II is much more than an update to the original LS50 Wireless; it is a fully active wireless stereo system built on the same Metamaterial Absorption Technology (MAT) as the LS50 Meta. This technology uses a labyrinth of channels to absorb 99% of unwanted high‑frequency energy from the back of the tweeter, delivering pure, natural treble. Combined with KEF’s 12th‑generation Uni‑Q driver array, it offers incredibly precise, three‑dimensional sound with a broad, evenly dispersed sweet spot.
Designed around a new platform, the LS50 Wireless II integrates powerful amplifiers—280 W Class D for the mid‑bass driver and 100 W Class A/B for the tweeter—controlled by the Music Integrity Engine DSP for perfectly timed, controlled sound. Its new wireless architecture supports AirPlay 2, Google Chromecast, Roon Ready streaming and Bluetooth 4.2, while built‑in services let you access Spotify, Tidal, Amazon Music, Qobuz and more. With HDMI eARC, optical and coaxial digital inputs, analog auxiliary, Ethernet and RCA subwoofer output, it connects to everything from TVs to turntables.
Key Features:
Metamaterial Absorption & Uni‑Q Driver: MAT technology absorbs 99% of unwanted high‑frequency sound from the rear of the tweeter, while the 12th‑generation Uni‑Q driver acts as a point source, delivering a detailed, immersive soundstage with reduced distortion.
Powerful Built‑in Amplification: Each speaker houses its own amplifiers: 280 W of Class D power driving the aluminium mid‑bass cone and a 100 W Class A/B amplifier powering the vented aluminium dome tweeter, providing room‑filling dynamics with minimal distortion.
Music Integrity Engine DSP: KEF’s bespoke Music Integrity Engine optimises the time alignment and frequency response of the drivers, ensuring tight, coherent bass, precise imaging and a seamless transition between the tweeter and mid‑bass driver.
High‑Resolution Streaming & Services: Stream music up to 24‑bit/384 kHz over your network, enjoy MQA and DSD playback and listen via AirPlay 2, Chromecast, Roon Ready, UPnP, Bluetooth 4.2 and built‑in services such as Spotify Connect, Tidal, Amazon Music, Qobuz and Deezer.
Comprehensive Connectivity: Inputs include HDMI eARC, TOSLINK optical, digital coaxial, 3.5 mm analog auxiliary, RJ45 Ethernet for network and interspeaker connection, plus subwoofer output. Interspeaker connection can be wireless (96 kHz/24‑bit) or wired (192 kHz/24‑bit).
Premium Design & Finish: A curved, low‑diffraction cabinet with eye‑catching heat sinks and colour‑matched rear ports reduces cabinet resonance and diffraction. Available in Carbon Black, Mineral White, Moss Green or Sandshell, with threaded inserts to secure the speakers to KEF S2 stands.
Product Specifications:
Model: LS50 Wireless II
Drive units: Uni‑Q Driver Array: LF 130 mm (5.25 in.) aluminium cone; HF 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology
Frequency range (‑6 dB): 40 Hz – 47 kHz (measured at 85 dB/1 m, depends on EQ settings)
Frequency response (±3 dB): 45 Hz – 28 kHz (measured at 85 dB/1 m, depends on EQ settings)
Amplifier output (per speaker): LF 280 W Class D; HF 100 W Class A/B
Maximum SPL: 108 dB (measured at 1 m)
Streaming platforms: AirPlay 2, Google Chromecast, Roon Ready, UPnP, Bluetooth 4.2, Spotify Connect, Tidal, Amazon Music, Qobuz, Deezer, QQ Music via QPlay, Internet radio and podcasts
Source resolution: Network up to 384 kHz/24 bit; optical up to 96 kHz/24 bit; coaxial up to 192 kHz/24 bit; HDMI up to 192 kHz/24 bit
Interspeaker connection: Wireless: all sources resampled to 96 kHz/24 bit PCM; Wired: all sources resampled to 192 kHz/24 bit PCM
How does Metamaterial Absorption Technology improve the LS50 Wireless II?
MAT uses a complex maze‑like absorber to remove 99 % of unwanted high‑frequency energy radiated from the back of the tweeter, significantly reducing distortion and delivering a purer, more natural treble response.
What makes the LS50 Wireless II different from the passive LS50 Meta?
While the LS50 Meta is a passive bookshelf speaker, the LS50 Wireless II is a fully active system with built‑in amplification, digital signal processing and wireless streaming capabilities. It combines MAT and the 12th‑generation Uni‑Q driver with a high‑resolution streaming platform and powerful amplifiers to create an all‑in‑one hi‑fi solution.
What streaming services can I use with LS50 Wireless II?
The speakers support AirPlay 2, Google Chromecast, Roon Ready and Bluetooth 4.2, and provide direct access to Spotify via Spotify Connect, Tidal, Amazon Music, Qobuz, Deezer, QQ Music (via QPlay), Internet radio and podcasts.
How powerful are the built‑in amplifiers?
Each speaker contains a 280‑watt Class D amplifier for the aluminium mid‑bass driver and a 100‑watt Class A/B amplifier for the vented aluminium dome tweeter, delivering dynamic sound with a maximum SPL of 108 dB.
What sources and formats are supported?
The LS50 Wireless II plays audio up to 24‑bit/384 kHz via the network, supports optical, coaxial and HDMI inputs up to 192 kHz/24 bit, and can decode MP3, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM, as well as MQA and DSD streams.
Which inputs and outputs are available?
Connectivity options include HDMI eARC, TOSLINK optical, digital coaxial, 3.5 mm analog auxiliary, two RJ45 Ethernet ports for network and interspeaker links, and RCA subwoofer output for adding a subwoofer.
What finishes and design features does it offer?
A curved, low‑diffraction cabinet with sculpted heat sinks houses the drivers. The speakers are available in Carbon Black, Mineral White, Moss Green or Sandshell and each cabinet has threaded inserts for securing KEF S2 stands.
Can the LS50 Wireless II be used in a multi-room setup?
Yes. With AirPlay 2, Google Chromecast and Roon Ready support, you can stream music to multiple LS50 Wireless II speakers throughout your home, creating a seamless multi‑room listening experience.
KEF LS50 Wireless II Bookshelf Speakers - Moss Green Pair Downloads:
The KEF LS50 Wireless II is a fully active stereo speaker system built around Metamaterial Absorption Technology and the 12th‑generation Uni‑Q driver. Powerful built‑in amplifiers (280 W for bass, 100 W for treble) and the Music Integrity Engine deliver dynamic, tightly timed sound. High‑resolution streaming up to 24‑bit/384 kHz plus AirPlay 2, Chromecast, Roon Ready, Bluetooth and HDMI connectivity cover every listening need. Available in stylish finishes, the curved, low‑diffraction cabinets include threaded inserts for KEF S2 stands and dual subwoofer outputs.
Get the Details
Features & Specs
Features & Specs
Metamaterial Absorption & Uni‑Q
MAT and the 12th‑generation Uni‑Q driver work together to eliminate unwanted high‑frequency reflections and create a coherent, wide soundstage.
Built‑in Power Amplification
Onboard 280‑Watt Class D and 100‑Watt Class A/B amplifiers deliver room‑filling dynamics while maintaining control and low distortion.
Music Integrity Engine
KEF’s bespoke Music Integrity Engine digital signal processing aligns the drivers’ timing and frequency response for precise imaging and seamless integration.
High‑Resolution Streaming
Supports streaming up to 24‑bit/384 kHz with AirPlay 2, Chromecast, Roon Ready, UPnP and Bluetooth 4.2, and integrates major services like Spotify, Tidal and Amazon Music.
Comprehensive Connectivity
Equipped with HDMI eARC, TOSLINK optical, coaxial, analog auxiliary, RJ45 Ethernet and subwoofer output, plus wireless or wired interspeaker links.
Premium Design & Finishes
A rigid, curved cabinet with colour‑matched ports and matte finishes - adds sophistication and pairs with KEF S2 stands.
MAT and the 12th‑generation Uni‑Q driver work together to eliminate unwanted high‑frequency reflections and create a coherent, wide soundstage.
Built‑in Power Amplification
Onboard 280‑Watt Class D and 100‑Watt Class A/B amplifiers deliver room‑filling dynamics while maintaining control and low distortion.
Music Integrity Engine
KEF’s bespoke Music Integrity Engine digital signal processing aligns the drivers’ timing and frequency response for precise imaging and seamless integration.
High‑Resolution Streaming
Supports streaming up to 24‑bit/384 kHz with AirPlay 2, Chromecast, Roon Ready, UPnP and Bluetooth 4.2, and integrates major services like Spotify, Tidal and Amazon Music.
Comprehensive Connectivity
Equipped with HDMI eARC, TOSLINK optical, coaxial, analog auxiliary, RJ45 Ethernet and subwoofer output, plus wireless or wired interspeaker links.
Premium Design & Finishes
A rigid, curved cabinet with colour‑matched ports and matte finishes - adds sophistication and pairs with KEF S2 stands.
Expert Insight
Expert Insight
As an all‑in‑one audiophile solution, the LS50 Wireless II pairs KEF’s groundbreaking acoustic technologies with powerful amplification and a versatile streaming platform. Its user‑centric design offers a wealth of inputs and wireless options, ensuring seamless integration into any modern living space. The result is a compact, elegant system that delivers uncompromised high‑fidelity sound without the clutter of separate components.
Nate M
Brand Manager
Details
Details
KEF LS50 Wireless II Speakers - Moss Green
The KEF LS50 Wireless II is much more than an update to the original LS50 Wireless; it is a fully active wireless stereo system built on the same Metamaterial Absorption Technology (MAT) as the LS50 Meta. This technology uses a labyrinth of channels to absorb 99% of unwanted high‑frequency energy from the back of the tweeter, delivering pure, natural treble. Combined with KEF’s 12th‑generation Uni‑Q driver array, it offers incredibly precise, three‑dimensional sound with a broad, evenly dispersed sweet spot.
Designed around a new platform, the LS50 Wireless II integrates powerful amplifiers—280 W Class D for the mid‑bass driver and 100 W Class A/B for the tweeter—controlled by the Music Integrity Engine DSP for perfectly timed, controlled sound. Its new wireless architecture supports AirPlay 2, Google Chromecast, Roon Ready streaming and Bluetooth 4.2, while built‑in services let you access Spotify, Tidal, Amazon Music, Qobuz and more. With HDMI eARC, optical and coaxial digital inputs, analog auxiliary, Ethernet and RCA subwoofer output, it connects to everything from TVs to turntables.
Key Features:
Metamaterial Absorption & Uni‑Q Driver: MAT technology absorbs 99% of unwanted high‑frequency sound from the rear of the tweeter, while the 12th‑generation Uni‑Q driver acts as a point source, delivering a detailed, immersive soundstage with reduced distortion.
Powerful Built‑in Amplification: Each speaker houses its own amplifiers: 280 W of Class D power driving the aluminium mid‑bass cone and a 100 W Class A/B amplifier powering the vented aluminium dome tweeter, providing room‑filling dynamics with minimal distortion.
Music Integrity Engine DSP: KEF’s bespoke Music Integrity Engine optimises the time alignment and frequency response of the drivers, ensuring tight, coherent bass, precise imaging and a seamless transition between the tweeter and mid‑bass driver.
High‑Resolution Streaming & Services: Stream music up to 24‑bit/384 kHz over your network, enjoy MQA and DSD playback and listen via AirPlay 2, Chromecast, Roon Ready, UPnP, Bluetooth 4.2 and built‑in services such as Spotify Connect, Tidal, Amazon Music, Qobuz and Deezer.
Comprehensive Connectivity: Inputs include HDMI eARC, TOSLINK optical, digital coaxial, 3.5 mm analog auxiliary, RJ45 Ethernet for network and interspeaker connection, plus subwoofer output. Interspeaker connection can be wireless (96 kHz/24‑bit) or wired (192 kHz/24‑bit).
Premium Design & Finish: A curved, low‑diffraction cabinet with eye‑catching heat sinks and colour‑matched rear ports reduces cabinet resonance and diffraction. Available in Carbon Black, Mineral White, Moss Green or Sandshell, with threaded inserts to secure the speakers to KEF S2 stands.
Product Specifications:
Model: LS50 Wireless II
Drive units: Uni‑Q Driver Array: LF 130 mm (5.25 in.) aluminium cone; HF 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption Technology
Frequency range (‑6 dB): 40 Hz – 47 kHz (measured at 85 dB/1 m, depends on EQ settings)
Frequency response (±3 dB): 45 Hz – 28 kHz (measured at 85 dB/1 m, depends on EQ settings)
Amplifier output (per speaker): LF 280 W Class D; HF 100 W Class A/B
Maximum SPL: 108 dB (measured at 1 m)
Streaming platforms: AirPlay 2, Google Chromecast, Roon Ready, UPnP, Bluetooth 4.2, Spotify Connect, Tidal, Amazon Music, Qobuz, Deezer, QQ Music via QPlay, Internet radio and podcasts
Source resolution: Network up to 384 kHz/24 bit; optical up to 96 kHz/24 bit; coaxial up to 192 kHz/24 bit; HDMI up to 192 kHz/24 bit
Interspeaker connection: Wireless: all sources resampled to 96 kHz/24 bit PCM; Wired: all sources resampled to 192 kHz/24 bit PCM
How does Metamaterial Absorption Technology improve the LS50 Wireless II?
MAT uses a complex maze‑like absorber to remove 99 % of unwanted high‑frequency energy radiated from the back of the tweeter, significantly reducing distortion and delivering a purer, more natural treble response.
What makes the LS50 Wireless II different from the passive LS50 Meta?
While the LS50 Meta is a passive bookshelf speaker, the LS50 Wireless II is a fully active system with built‑in amplification, digital signal processing and wireless streaming capabilities. It combines MAT and the 12th‑generation Uni‑Q driver with a high‑resolution streaming platform and powerful amplifiers to create an all‑in‑one hi‑fi solution.
What streaming services can I use with LS50 Wireless II?
The speakers support AirPlay 2, Google Chromecast, Roon Ready and Bluetooth 4.2, and provide direct access to Spotify via Spotify Connect, Tidal, Amazon Music, Qobuz, Deezer, QQ Music (via QPlay), Internet radio and podcasts.
How powerful are the built‑in amplifiers?
Each speaker contains a 280‑watt Class D amplifier for the aluminium mid‑bass driver and a 100‑watt Class A/B amplifier for the vented aluminium dome tweeter, delivering dynamic sound with a maximum SPL of 108 dB.
What sources and formats are supported?
The LS50 Wireless II plays audio up to 24‑bit/384 kHz via the network, supports optical, coaxial and HDMI inputs up to 192 kHz/24 bit, and can decode MP3, AAC, FLAC, WAV, AIFF, ALAC, WMA, LPCM, as well as MQA and DSD streams.
Which inputs and outputs are available?
Connectivity options include HDMI eARC, TOSLINK optical, digital coaxial, 3.5 mm analog auxiliary, two RJ45 Ethernet ports for network and interspeaker links, and RCA subwoofer output for adding a subwoofer.
What finishes and design features does it offer?
A curved, low‑diffraction cabinet with sculpted heat sinks houses the drivers. The speakers are available in Carbon Black, Mineral White, Moss Green or Sandshell and each cabinet has threaded inserts for securing KEF S2 stands.
Can the LS50 Wireless II be used in a multi-room setup?
Yes. With AirPlay 2, Google Chromecast and Roon Ready support, you can stream music to multiple LS50 Wireless II speakers throughout your home, creating a seamless multi‑room listening experience.
KEF LS50 Wireless II Bookshelf Speakers - Moss Green Pair Downloads:
