KEF LS50 Meta is a 2-way Passive Bass Reflex Bookshelf speaker by KEF. It was released in September 2020. It features a 1" Hard-Dome Tweeter and 1 x 5.25" Aluminum Woofer. The speaker has a frequency range of 79-28k Hz and a sensitivity of 85 dB. KEF LS50 Meta has an MSRP of 1600$ per pair.
Room Size Suitability
The size of the room where you plan to use the KEF LS50 Meta is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Average |
| Small Room | Good |
| Mid-size Room | Average |
| Large Room | Poor |
| Very Large Room | Bad |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
KEF replaced the older LS50 with this model. Follow the link to read our detailed comparison of these models:
Compare KEF LS50 Meta vs KEF LS50
KEF's LS Series of Loudspeakers
LS50 Meta is a member of KEF's LS series of Passive 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.
KEF LS Series Speakers
Frequency Response of the KEF LS50 Meta Speaker
KEF LS50 Meta has a Frequency response range of 79-28k Hz and Power Range of 40-100 watts. With a minimum frequency of 79 Hz, it is hard to expect a strong bass response from LS50 Meta so depending on your use case, using a subwoofer will significantly help to widen the response range.
Here we have a comparison of how LS50 Meta'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 Meta?
Among the speakers in our database with a max MSRP price of 2000$ (Pair), these are the 5 Passive Bookshelf speakers that have the deeper bass levels than the KEF LS50 Meta's 79Hz:
Crossover frequency of the KEF LS50 Meta?
The crossover frequency of the LS50 Meta is set to 2100Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
KEF LS50 Meta's nominal impedance level is
8 ohms but can go down to as low as
3.5 ohms, and has a sensitivity of
85 dB.
Sensitivity
Bookshelf Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so KEF LS50 Meta is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 85 dB, KEF LS50 Meta is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the KEF LS50 Meta plays in your room →
Minimum Impedance of the KEF LS50 Meta
Even though the nominal impedance of the LS50 Meta is 8 ohms, the minimum impedance level of this speaker according to KEF is 3.5 ohms KEF LS50 Meta so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
What amplifier does the KEF LS50 Meta need?
At normal listening levels in a medium room, about
24–100 W
per channel into 8 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? Integrated amplifiers under $2,000, or every amplifier we cover.
Input Type
LS50 Meta features Post type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
KEF LS50 Meta Back View
KEF LS50 Meta External Dimensions and Weight
KEF LS50 Meta has external dimensions of (Height x Width x Depth) 11-15/16 x 7.875 x 11-1/16inch (303.0 x 201.0 x 281.0mm ).
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 Meta is approximately 564.8cm2 / 87.5inch2.
To get a better perspective on the real life size of KEF LS50 Meta, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
KEF LS50 Meta Speaker Size Compared to a Compact Disc
Here we place the KEF LS50 Meta 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 Meta Speaker next to an amplifier and turntable
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
WeightThe KEF LS50 Meta weighs 7.82kg / 17.2lbs per piece. Here is a comparison of how LS50 Meta's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Weight
Bookshelf Speakers under $2000
Cabinet type and Materials
KEF LS50 Meta has a
Bass Reflex type cabinet and a MDF/Polymer finish. 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.
Speaker Feet
KEF LS50 Meta comes with 8 Self-adhesive rubber feet which you can use to secure your loudspeaker on the surface that you are putting on.
It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.
Port Position
KEF LS50 Meta 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. LS50 Meta comes with
2 Foam port plugs so if you don't have any choice but place the speakers too close to the walls or other surfaces, you can use these plugs in order to avoid boomy or too much bass.
Available colors
KEF LS50 Meta is available in Carbon Black, Titanium Grey, Royal Blue and Mineral White.
KEF LS50 Meta Colors
Wall Mounting
LS50 Meta 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 Meta 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 Meta
What's in the Box of KEF LS50 Meta?
Here are the items that are included inside the box of LS50 Meta:
- 2 Bookshelf loudspeakers
- 2 Foam port plugs
- 8 Self-adhesive rubber feet
- Owners Manual
- Warranty Registration Card
Recommended Accessories
Here is a list of accessories that we think you may need for the KEF LS50 Meta.
- Speaker Cable and Connectors
- 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 Meta, use the direct link below to download the official manual document:
Download User Manual for KEF LS50 Meta
Official Brochure
Here is a link to download the official brochure for the KEF LS50 Meta speaker:
Official Brochure for KEF LS50 Meta
Official Product Page
Official manufacturer's product page for the KEF LS50 Meta speaker can be found below:
Official Product Page for KEF LS50 Meta
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.