KEF LS50C Meta is a 2-way Passive Bass Reflex Center Channel speaker by KEF. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1" Vented 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 LS50C Meta has an MSRP of 900$.
Room Size Suitability
The size of the room where you plan to use the KEF LS50C 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 LS50C Meta Speaker Structure
KEF LS50C Meta Lifestyle
KEF's LS Series of Loudspeakers
LS50C Meta is a member of KEF's LS series of Passive speakers. Below you can see the main specs of these speakers.
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Frequency Response of the KEF LS50C Meta Speaker
KEF LS50C Meta has a Frequency response range of 79-28k Hz at ±3dB and Power Range of 40-100 watts.
Here we have a comparison of how LS50C Meta's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel Speakers
Crossover frequency of the KEF LS50C Meta?
The Crossover frequency of the LS50C 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 LS50C 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
Center Channel Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so KEF LS50C Meta is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 85 dB, KEF LS50C 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.
Minimum Impedance of the KEF LS50C Meta
Even though the nominal impedance of the LS50C Meta is 8 ohms, the minimum impedance level of this speaker according to KEF is 3.5 ohms KEF LS50C Meta so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
Check the amplifiers that are in a similar price range to the KEF LS50C Meta:
Input Type
LS50C Meta features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
KEF LS50C Meta Back View
KEF LS50C Meta's Binding post terminals
KEF LS50C Meta External Dimensions and Weight
KEF LS50C Meta has external dimensions of (Height x Width x Depth) 11-13/16 x 7-7/8 x 11-1/16inch (301.0 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 LS50C Meta is approximately 564.8cm2 / 87.5inch2.
WeightThe KEF LS50C Meta weighs 7.82kg / 17.2lbs per piece. Here is a comparison of how LS50C Meta's weight compares with the average, max and min weights in its class.
Weight
All Center Channel Speakers
Weight
Center Channel Speakers under $1000
Cabinet type and Materials
KEF LS50C Meta 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.
Speaker Feet
KEF LS50C Meta comes with
4 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 LS50C 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. LS50C Meta comes with
2 Two-piece 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.
KEF LS50C Meta off-set flexible Port
Available colors
KEF LS50C Meta is available in Grey.
KEF LS50C Meta Colors
What's in the Box of KEF LS50C Meta?
Here are the items that are included inside the box of LS50C Meta:
Center-channel loudspeakerFoam port plug4 Self-adhesive rubber feetOwners ManualWarranty Registration Card
Recommended Accessories
Here is a list of accessories that we think you may need for the KEF LS50C Meta.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.