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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
  • Dimensions (H x W x D): 7-1/8" x 20-11/16" x 8-1/2"
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KEF Q250c Review

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$.

What size of room is the KEF Q250c speaker good for?

The size of the room that you are planning to use the KEF Q250c is an important decision factor. Here we have evaluated its suitability to various size of environments considering its size and max power parameters:

Listening Environment Suitability
Near-fieldAverage
Small RoomGood
Mid-size RoomAverage
Large RoomPoor
Very Large RoomBad

What are the speakers in KEF's Q Series?

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 Q550
Compare
58-28k Hz 87 dB8Ω 2 x 5.25"
KEF Q750
Compare
48-28k Hz 88 dB8Ω 2 x 6.5"
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.

What is the Frequency Response of the KEF Q250c speaker?

KEF Q250c has a Frequency response range of 68-28k Hz at ±3dB (57Hz-50kHz at -6dB) and Power Range of 10-100 watts. Here we have a comparison of how Q250c's Low and High frequency values compared 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

Among the speakers in our database with a max MSRP price of 750$ (Pair), these are the 5 Passive Center Channel speakers that have the deeper bass levels than the KEF Q250c's 68Hz:

  • Definitive ProCenter 2000 with Low Frequency of 42 Hz (Compare w/ Q250c)
  • Emotiva Airmotiv C2+ with Low Frequency of 45 Hz (Compare w/ Q250c)
  • Definitive ProCenter 1000 with Low Frequency of 47 Hz (Compare w/ Q250c)
  • ELAC Uni-Fi Ref UCR52 with Low Frequency of 47 Hz (Compare w/ Q250c)
  • DALI Oberon Vokal with Low Frequency of 47 Hz (Compare w/ Q250c)


KEF Q250c Tweeter
KEF Q250c's vented aluminum Dome Tweeter

What is the Crossover frequency of KEF Q250c?

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.

What is the Impedance and Sensitivity of the KEF Q250c? Is it an easy to drive speaker?

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 high output if you like listening your music at high volume levels. You may especially have hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D speakers.

Minimum Impedance of 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 our Integrated Amplifiers page to find an amplifier to pair with the KEF Q250c.

Input Type

Q250c features Binding post type connectors. Bi-amping and Bi-wiring is 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 compared 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
  • 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  Lifestyle
    KEF Q250c Lifestyle

    KEF Q250c Alternatives in Passive Center Channel Speakers
    Model Type Sensitivity Impedance Frequency
    Polk ES35
    Compare
    2-way 89 dB 8 ohms 66-40k Hz
    Klipsch RP-504C II
    Compare
    2-way 96 dB 8 ohms 50-25k Hz
    Klipsch RP-404C II
    Compare
    2-way 94 dB 8 ohms 87-25k Hz
    Emotiva Airmotiv C3+
    Compare
    3-way 92 dB 4 ohms 40 Hz – 28 kHz
    Wharfedale Diamond 12.C
    Compare
    2-way 90 dB 8 ohms 90-20k Hz
    Emotiva Airmotiv C2+
    Compare
    3-way 92 dB 4 ohms 45 Hz – 28 kHz
    Polk R400
    Compare
    2-way 89 dB 8 ohms 48-39K Hz
    Klipsch RP-500C II
    Compare
    2-way 96 dB 8 ohms 60-25k Hz
    Klipsch RP-600C
    Compare
    2-way 97 dB 8 ohms 58-25k Hz
    KEF Q650c
    Compare
    2-way 87 dB 8 ohms 64-28k 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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