If I buy these in the US will they still work ok when I take them to the UK? We have different volgtage I believe

I am unsure but I would imagine that there is an adapter that would work. That said, the KEF website has a contact us section. They are really great at getting back to you. The packaging is quite large and heavy, so should they work and you decide to buy them, you may want to consider having them delivered instead.

Can these pair with the kef kc62 subwoofer and it's wireless kit? are they compatible (i want all wireless).

They are compatible with any subwoofer. If you use a KEF sub the app has presets on the settings to be used. The kc62 may be a bit much for these KEFs, that sub is better suited for the LS50 wireless 2 for whatever is worth. Great speakers.

I read in one review it say you cannot use the inputs without being online. Is that true?... such a dumb design i must say.

Is this a serious question, or just trolling? If you are using any of the many supported streaming services (one of the strengths of the system), yes, then clearly, you must be online. Otherwise, you can use bluetooth, or even legacy RCA inputs without any internet connection. I have to ask why someone would believe that KEF would require full time internet to use those other inputs. That would be a dumb move for such a smart company.

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KEF LSX II Wireless Bookshelf Speakers (Pair, Carbon Black) - Active Powered HiFi Speaker System with HDMI ARC, AirPlay 2 & Wi-Fi Streaming

Product ID: 448549798

Details

Audio Output Mode
Stereo
Brand
KEF
Connectivity Technology
HDMI ARC USB C
Frequency Response
54 hertz
Speaker Maximum Output Power
200 watts

🎵24bit/384kHz Hi-Res Audio

📶Wi-Fi + Bluetooth Multi-Room Streaming

🔌HDMI ARC & USB-C Inputs

$3343.65

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Description

🎧 Elevate your soundscape with KEF LSX II — where compact meets colossal audio.

COMPACT ELEGANCE - Sleek carbon black design fits perfectly on your desk, bookshelf, or wall-mounted setup—style meets substance in every corner.
VERSATILE CONNECTIVITY - Effortlessly connect to your TV, laptop, or mobile devices with HDMI ARC, USB-C, Wi-Fi, and Bluetooth for ultimate convenience.
AUDIOPHILE GRADE CLARITY - Experience pristine, high-resolution sound up to 24bit/384kHz that transforms any space into your personal concert hall.
SEAMLESS MULTI ROOM SYNC - Fill your entire home with synchronized playlists via AirPlay 2, Chromecast, or Roon—because your vibe deserves to travel.
BUILT IN STREAMING POWERHOUSE - Access top streaming services like Spotify, Tidal, Qobuz, and more directly from the speaker—no extra devices needed.

The KEF LSX II Wireless HiFi Speaker System delivers exceptional high-resolution audio (24bit/384kHz) in a compact, stylish carbon black design. Featuring versatile connectivity options including HDMI ARC, USB-C, Wi-Fi, and Bluetooth, it supports multi-room streaming via AirPlay 2, Chromecast, and Roon. Perfectly suited for desktops, bookshelves, or wall mounts, it integrates built-in access to popular streaming services, making it the ultimate all-in-one audio solution for discerning listeners.

Specifications

ASIN	B0B4TDP1CV
Additional Features	Bass Boost, Hi Res Audio, Multi Room Audio, USB Port, network ready
Age Range Description	Adult
Antenna Location	For Televisions
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	#29,424 in Electronics ( See Top 100 in Electronics ) #896 in Portable Bluetooth Speakers
Bluetooth Range	10 meters
Brand	KEF
Built-In Media	1 Pair LSX II Speakers
Color	Carbon Black
Compatible Devices	Laptop, Television
Connectivity Protocol	Wi-Fi
Connectivity Technology	HDMI ARC, TOSLINK Optical, USB Type C, Analog 3.5mm Auxiliary, RJ45 Ethernet (network)
Control Method	App
Controller Type	App Control, Remote Control
Customer Package Type	FFP
Customer Reviews	4.3 4.3 out of 5 stars (194)
Enclosure Material	Plastic
Frequency Response	54 hertz
Global Trade Identification Number	00637203047879
Is Waterproof	False
Item Dimensions D x W x H	7.1"D x 9.5"W x 6.1"H
Item Weight	15.6 pounds
Manufacturer	KEF
Model Name	LSX2
Model Number	LSXIIBL
Mounting Type	Tabletop Mount
Number of Audio Channels	2
Number of Items	1
Power Source	Corded Electric
Speaker Maximum Output Power	200 watts
Speaker Size	4.5 inches
Speaker Type	Bookshelf
Specific Uses For Product	Indoor
Subwoofer Diameter	4.5 inches
Tweeter Diameter	0.75 inches
UPC	637203047879
Warranty Description	2 year manufacturer
Warranty Type	Limited
Wireless Technology	AirPlay 2, Google Cast, Roon Ready, UPnP Compatible, Bluetooth 5.0, Plays with Audirvāna
Woofer Diameter	4.5 inches

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