KEF LSX II Wireless HiFi System (LSX2)

Summary of features:

•  Wireless streaming including Airplay 2, Chromecast, Bluetooth, WiFi
•  Plays all major music services and supports all major audio formats
•  DSD, MQA and PCM up to 24bit/384kHz
•  Comprehensive connectivity for your TV, laptop and any other equipment: USB-C, HDMI ARC, Analogue input, subwoofer output
•  11th Generation Uni-Q^® driver array for accurate, pristine sound
•  Music Integrity Engine for rich, full-bodied sound
•  System power: LF 70W class D, HF 30W class D, Max. SPL:102dB
•  Intuitive on-boarding with user-centred features
•  Personalised listening experience via KEF Connect App
•  Design by Michael Young
•  Optimised cabinet design for best acoustic performance
•  Mounting inserts to secure on accessories including P1 desk pad, S1 floor stand and B1 wall bracket

Our Review - Simplicity, Performance, Beauty of the KEF LSX 2

With over 36 years in the HiFi business, we have our thoughts on the KEF LSX 2. "Sure, there are entry level solutions that will do the same. But we're almost 100% certain than none will have the same level of musical performance that these do." Read our thoughts on the KEF LSX 2 here. - Check out our HiFi Tips and Tricks for more reviews, comparisons, how to guides and useful HiFi tips and tricks to get the most out of your system. 

FAQ'S

Can you use the KEF LSX II as a multi-room speaker?

Yes! The whole LS family from KEF, including the LSX 2, is designed to be a multiroom speaker allowing you to listen to the same material in different rooms. Using Google Chromecast or Apple Airplay 2, you can create groups and control volume, allowing the whole home to enjoy the same music.

Can you connect a turntable directly into the LSX II?

So long as your turntable has a phonostage, either in-built or external, then the LSX II can accept this signal via the 3.5mm input via appropriate cables. If you need any help to check out your setup, just get in touch.

Can you add a sub and what do you recommend?

The LSX II has a dedicated subwoofer output and is designed to support a subwoofer. This output can be used to connect directly to your subwoofer or using the KEF KW-1 wireless kit. As for which subwoofer to use, it depends on the size of the room and where you are planning to put it and how large a subwoofer cabinet you would like. For smaller rooms (<15 sqm), the KEF Kube 8b will be a perfect addition to the LSX II. For larger rooms, or if you want to have a really compact subwoofer, the KEF KC62 is a brilliant addition, able to fill a larger room despite being so small.

Is there an app?

The KEF Connect app is a propriety application designed for the KEF LS family, and it allows you to interact with the LSX II in all the ways you'd expect - source selection, input select, EQ settings and much more. If you don't want to use the app, the KEF LSX II supports Spotify Connect, Airplay 2, Chromecast, Bluetooth and Roon.

Can you adjust the EQ to suit your room?

Via the KEF Connect app, the KEF LSX II allows you to configure the LSX II for your listening space. The performance of the speaker can be adjusted to allow for desk placement, stand placement, on-wall placement and much more. 

What connectivity options are there?

Lots! One of the things we love most about the LSX II is its versatility. It supports a bunch of connectivity options including Chromecast, Apple Airplay 2, Spotify Connect, Roon, Bluetooth, but also has a wide range of wired options as well, such as HDMI ARC for your TV, 3.5mm auxiliary for sources like turntables, CD players, computers, and optical.

Specifications

• Dimensions (HWD per speaker): 240 × 155 × 180 mm
• Weight (per set): 7.2 kg

Drive units

• Uni-Q Driver Array
• LF/MF: 115 mm (4.5 in.) magnesium/aluminium alloy cone
• HF: 19 mm (0.75 in.) aluminium dome

Amplifier Class

• LF: Class D
• HF: Class D

Max SPL measured at 1m

• 102 dB

Frequency response (±3dB) measured at 85dB/1m

• 54 Hz - 28 kHz
• Depends on EQ settings

Frequency range (-6dB) measured at 85dB/1m

• 49 Hz - 47 kHz
• Depends on EQ settings

Home automation system

• Elan
• RTi
• Crestron Home
• Savant
• Control4

Primary speaker inputs

• HDMI ARC
• TOSLINK Optical
• USB Type C
• Analog 3.5mm Auxiliary
• RJ45 Ethernet (network)
• RJ45 Ethernet (interspeaker)

Secondary speaker inputs

• RJ45 Ethernet (interspeaker)

Output

• RCA subwoofer output

Interspeaker connection

• Wireless: all sources resampled to 48kHz / 24bit PCM
• Wired: all sources resampled to 96kHz / 24bit PCM

Wireless streaming features

• AirPlay 2
• Google Chromecast
• ROON Ready
• UPnP Compatible
• Bluetooth 5.0
• Plays with Audirvāna

Streaming services

• Spotify via Spotify Connect
• Tidal via Tidal Connect
• Amazon Music
• Qobuz
• Deezer
• QQ Music via QPlay
• Internet Radio
• Podcast
• Depends on service availability in different countries

Supported format (network)

• MQA
• DSD
• FLAC
• WAV
• AIFF
• ALAC
• AAC
• WMA
• MP3
• M4A
• LPCM
• Ogg Vorbis

Source resolution

• Network: up to 384kHz / 24bit
• Optical: up to 96kHz / 24bit
• USB Type C: up to 192kHz / 24bit
• HDMI: up to 1.411Mbps PCM
• Depends on source resolution

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

Amplifier output power (per speaker)

• LF: 70W
• HF: 30W
  

Power input

• 100 - 240VAC 50/60Hz

Power consumption

• 200W (operating power)
• <2.0W (standby power)