KEF LS50 Wireless II is a 2-way Powered Bass Reflex Bookshelf speaker by KEF. It was released in September 2020. LS50 Wireless II's built-in amplifier provides 380-watt RMS( 760-watt Peak). The built-in power amplifier saves space & eliminates the need to connect KEF LS50 Wireless II to a stereo receiver or external power amp. It features a 1" Hard-Dome Tweeter and 1 x 5.25" Woofer. The speaker has a frequency range of 45-28k Hz. KEF LS50 Wireless II has an MSRP of 2999$ per pair but can often be found around 2499$ per pair.
KEF replaced the older LS50 Wireless with this model. Follow the link to read our detailed comparison of these models:
Compare KEF LS50 Wireless II vs KEF LS50 Wireless
KEF's LS Series of Loudspeakers
LS50 Wireless II is a member of KEF's LS series of Powered speakers. The LS range are KEF's active wireless speaker systems, from the compact LSX to the flagship LS60. Below you can see the main specs of these speakers.
See all 7 KEF LS models compared »
KEF LS Series Speakers
Frequency Response of the KEF LS50 Wireless II Speaker
KEF LS50 Wireless II has a Frequency response range of 45-28k Hz. With a minimum frequency of 45 Hz, LS50 Wireless II delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.
Here we have a comparison of how LS50 Wireless II's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Thinking about a subwoofer for the KEF LS50 Wireless II?
KEF LS50 Wireless II Back View
Handheld Remote
KEF LS50 Wireless II comes with a handheld remote which is obviously very useful to control your powered speakers from a distance.
Bluetooth Connectivity
KEF LS50 Wireless II employs Built-in Bluetooth for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops. LS50 Wireless II can playback up to Yes / 384 kHz with compatible devices.
KEF LS50 Wireless II supports the following Bluetooth Codecs when used with supported devices:
Supported Streaming Services
KEF LS50 Wireless II supports the following Streaming Services:
- Spotify via Spotify Connect
- Tidal
- Amazon Music
- Qobuz
- Deezer
- QQ Music via QPlay
- Internet Radio
- Podcast
Supported Wireless Streaming System
KEF LS50 Wireless II supports the following wireless streaming methods:
- AirPlay 2
- Google Chromecast
- ROON Ready
- UPnP Compatible
- Bluetooth 4.2
App-Based Control
KEF LS50 Wireless II can be controlled wirelessly via KEF Connect application available on Apple iOS and Android.
Inputs and Outputs
- 3.5mm Minijack Input
- USB Port: Service only
- mono-RCA Subwoofer Output
- Digital Input: 1
- HDMI Input: eARC
- Ethernet Port
KEF LS50 Wireless II Connections
KEF LS50 Wireless II External Dimensions and Weight
KEF LS50 Wireless II has external dimensions of (Height x Width x Depth) 10.9375 x 7.875 x 12.6875inch (277.8 x 200.0 x 322.3mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2.
To get a better perspective on the real life size of KEF LS50 Wireless II, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
KEF LS50 Wireless II Speaker Size Compared to a Compact Disc
Here we place the KEF LS50 Wireless II virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.
KEF LS50 Wireless II Speaker next to an amplifier and turntable
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
Weight The speaker with the built-in amplifier weighs 10.20kg / 22.4lbs whereas the other speaker weighs 20.10kg/ 44.2lbs. Here is a comparison of how LS50 Wireless II's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Weight
Bookshelf Speakers under $3000
Cabinet type and Materials
KEF LS50 Wireless II has a
Bass Reflex type cabinet. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Port Position
KEF LS50 Wireless II is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.
Wall Mounting
LS50 Wireless II doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
Speaker Stands
KEF sells a dedicated speaker stand for the LS50 Wireless II with a model name
KEF S2. You can check the latest price and availability of these stands at
B&H PHOTO and
Amazon.
KEF S2 Speaker Stands for KEF LS50 Wireless II
What's in the Box of KEF LS50 Wireless II?
Here are the items that are included inside the box of LS50 Wireless II:
- 2 Wireless powered speakers
- Two 6.5' AC power cords
- 10' Cat-6 interconnect speaker cable
- Remote control
- 2 \"AAA\" batteries
- Quick Start Guide
- Important Safety Information
- Warranty Information
Recommended Accessories
Here is a list of accessories that we think you may need for the KEF LS50 Wireless II.
- Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
- Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
User's Manual
For more information about how to setup, use and maintain the KEF LS50 Wireless II, use the direct link below to download the official manual document:
Download User Manual for KEF LS50 Wireless II
Official Product Page
Official manufacturer's product page for the KEF LS50 Wireless II speaker can be found below:
Official Product Page for KEF LS50 Wireless II
Warranty
3 Year w/ registration of parts warranty and 3 Year w/ registration of labor warranty is generally provided by the manufacturer.