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KEF Q250c Review
KEF Q250c

Main Features

  • 11th Generation Uni-Q Driver
  • 1" Dome Tweeter
  • 5.25" aluminum Woofer
  • One 6.5-inch Passive Radiators
  • 68-28k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 10-100watts
  • Weight:16.50 lbs / 7.50 kg
  • Dimensions(HxWxD): 7-1/8"x20-11/16"x8-1/2" / 181.0 x 526.0 x 216.0mm
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KEF Q250c Review
KEF Q250c KEF Q250c
See at AMAZON

KEF Q250c is a 2-way Passive Passive Radiator 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" Dome Tweeter and 1 x 5.25" aluminum Woofer. Q250c also employs one 6.5-inch passive radiators. The speaker has a frequency range of 68-28k Hz and a sensitivity of 87 dB. KEF Q250c has an MSRP of 600$.

Room Size Suitability

The size of the room where you plan to use the KEF Q250c 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-fieldAverage
Small RoomGood
Mid-size RoomAverage
Large RoomPoor
Very Large RoomBad

(* 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 Q250c  Lifestyle
KEF Q250c Lifestyle

KEF's Q Series of Loudspeakers

Q250c is a member of KEF's Q series of Passive speakers. Below you can see the main specs of these speakers.

KEF Q Series Speakers
Model Frequency SensitivityImpedance Woofer
KEF Q150
Compare
51-28k Hz 86 dB8Ω 1 x 5.25"
KEF Q350
Compare
63-28k Hz 87 dB8Ω 1 x 6.5"
KEF Q950
Compare
44-28k Hz 91 dB8Ω 2 x 8.0"
KEF Q750
Compare
48-28k Hz 88 dB8Ω 2 x 6.5"
KEF Q550
Compare
58-28k Hz 87 dB8Ω 2 x 5.25"
KEF Q650c
Compare
64-28k Hz 87 dB8Ω 2 x 6.5"
KEF Q250c
68-28k Hz 87 dB8Ω 1 x 5.25"
KEF Q Series Speakers
KEF Q Series Speakers


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response of the KEF Q250c Speaker

KEF Q250c has a Frequency response range of 68-28k Hz at ±3dB and Power Range of 10-100 watts. Here we have a comparison of how Q250c'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
KEF Q250c
Min
Average
Max
High Frequency
Center Channel Speakers
KEF Q250c
Min
Average
Max
KEF Q250c Woofer
KEF Q250c's aluminum Woofer


KEF Q250c Tweeter
KEF Q250c's vented aluminum Dome Tweeter

Crossover frequency of the KEF Q250c?

The Crossover frequency of the Q250c is set to 2500Hz. 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 Q250c's nominal impedance level is 8 ohms but can go down to as low as 3.4 ohms, and has a sensitivity of 87 dB.

Sensitivity
Center Channel Speakers
KEF Q250c
Min
Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so KEF Q250c is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only 87 dB, KEF Q250c 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 Q250c

Even though the nominal impedance of the Q250c is 8 ohms, the minimum impedance level of this speaker according to KEF is 3.4 ohms KEF Q250c 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 Q250c:

  • Integrated Amps under 500 USD
  • Integrated Amps under 750 USD
  • Integrated Amps under 1000 USD
  • All Integrated Amplifiers

Input Type

Q250c features Binding post type connectors. Bi-amping and Bi-wiring are not possible.

KEF Q250c External Dimensions and Weight

KEF Q250c has external dimensions of (Height x Width x Depth) 7-1/8 x 20-11/16 x 8-1/2inch (181.0 x 526.0 x 216.0mm ).

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 Q250c is approximately 1136.2cm2 / 176.1inch2.

Weight

The KEF Q250c weighs 7.50kg / 16.5lbs per piece. Here is a comparison of how Q250c's weight compares with the average, max and min weights in its class.

Weight
All Center Channel Speakers
KEF Q250c
Min
Average
Max
Weight
Center Channel Speakers under $750
KEF Q250c
Min
Average
Max

How does the KEF Q250c compare to the KEF Q650c?

One of the natural alternative to the KEF Q250c is the Q650c which is located one step higher in KEF's Passive Center Channel selection.

Check the Detailed Comparison of KEF Q250c vs Q650c for more details.

Cabinet type and Materials

KEF Q250c has a Passive Radiator type cabinet.

Speaker Feet

KEF Q250c 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.

Available colors

KEF Q250c is available in Satin White, Satin Black and Walnut.

KEF Q250c  with Grille
KEF Q250c with Grille

What's in the Box of KEF Q250c?

Here are the items that are included inside the box of Q250c:
  • Center-channel loudspeaker
  • 4 Self-adhesive rubber feet
  • Owners Manual
  • Warranty Information
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the KEF Q250c.

    • Speaker Cable and Connectors
      • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
      • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
      • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
    • Vibration Isolators: IsoAcoustics isolators 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.

    User's Manual

    For more information about how to setup, use and maintain the KEF Q250c, use the direct link below to download the official manual document:
    Download User Manual for KEF Q250c

    Official Brochure

    Here is a link to download the official brochure for the KEF Q250c speaker:
    Official Brochure for KEF Q250c

    Official Product Page

    Official manufacturer's product page for the KEF Q250c speaker can be found below:
    Official Product Page for KEF Q250c

    Warranty

    5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

    KEF Q250c Alternatives in Passive Center Channel Speakers
    Model Type Sensitivity Impedance Frequency
    KEF Q650c
    Compare
    2-way 87 dB 8 ohms 64-28k Hz
    KEF Q150
    Compare
    2-way 86 dB 8 ohms 51-28k Hz
    KEF Q350
    Compare
    2-way 87 dB 8 ohms 63-28k Hz
    KEF Q550
    Compare
    2-way 87 dB 8 ohms 58-28k Hz
    Klipsch RP-450C
    Compare
    2-way 97 dB 8 ohms 58-25k Hz
    Klipsch RP-500C
    Compare
    2-way 96 dB 8 ohms 60-25k Hz
    KEF Q750
    Compare
    2-way 88 dB 8 ohms 48-28k Hz
    KEF Q950
    Compare
    2-way 91 dB 8 ohms 44-28k Hz
    Frequently Asked Questions about KEF Q250c
    What is the External Dimensions of KEF Q250c
    What is the Speaker Sensitivity of KEF Q250c
    is the KEF Q250c an easy to drive speaker?

    KEF Q250c Detailed Specifications

    General
    BrandKEF
    Full Model NameKEF Q250c
    Speaker Type2-way Center Channel
    Power Range10-100 watts
    Sensitivity87 dB
    Impedance8 ohms
    Max SPL108 dB
    Frequency Response68-28k Hz
    DRIVERS
    Woofer Size5.25-inch
    Woofer Compositionaluminum
    Woofer SurroundRubber
    Tweeter Size1-inch
    Tweeter TypeDome
    Crossover freq2500Hz

    CONNECTIONS
    Connector TypeBinding post
    PHYSICAL SPECS
    Height181.0mm ( 7-1/8-inch)
    Width526.0mm ( 20-11/16-inch)
    Depth216.0mm ( 8-1/2-inch)
    Height181.0mm ( 7-1/8-inch)
    Weight7.50kg ( 16.50 lbs)
    EnclosurePassive Radiator
    Available ColorsSatin White, Satin Black, Walnut
    Mounting BracketNo
    Grilleoptional
    Moisture ResistanceNo
    OTHER
    Handheld RemoteNo
    Parts Warranty5 Years
    Labor Warranty5 Years
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