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KEF Q150

Bookshelf speakers (Black)

Item # 991Q150B

Putting together a new high-quality audio system? Then consider KEF's Q150s.

Putting together a new high-quality audio system? Then consider KEF's Q150s.

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Item # 991Q150B

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In stock
$599.99 pair

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About the KEF Q150

Treat yourself to engaging sound

Putting together a new high-quality audio system? Then consider KEF's Q150s. These attractive bookshelf speakers create a wide soundstage with pinpoint imaging. Use them as part of a stereo music system, or as left- and right-channel speakers in a KEF Q Series home theater system.

Treat yourself to engaging sound

Putting together a new high-quality audio system? Then consider KEF's Q150s. These attractive bookshelf speakers create a wide soundstage with pinpoint imaging. Use them as part of a stereo music system, or as left- and right-channel speakers in a KEF Q Series home theater system.

KEF Q150 bookshelf speakers

An expanded view of the Uni-Q driver assembly shows the detailed design and build quality that goes into making each Q150.

A room-filling "sweet spot," thanks to Uni-Q® technology

KEF's patented Uni-Q technology places each speaker's 1" tweeter in the acoustic center of the 5-1/4" woofer. This concentric design allows sounds to originate from a single point source, making the "sweet spot" (the ideal listening position) much larger.

Here at Crutchfield, we've had the pleasure of hearing Uni-Q technology in person many times, with KEF's super-popular, award-winning LS50 speakers. Sit wherever you like — you'll enjoy detailed, accurate three-dimensional sound throughout your room.

Get the most out of your stand-mount speakers

I'm a proponent of using high-quality speaker stands with "bookshelf" speakers. They help improve the sound by giving your speakers a stable, vibration-free platform. When shopping for stands, remember that the ideal height will place the tweeters roughly level with your ears, for maximum clarity. 

Speaker stands also give you more placement flexibility, since you won't be limited to a space on your shelf or table. The Sanus SF26 steel stands are an excellent choice to use with these speakers, but feel free to contact one of our Advisors for a specific recommendation for your setup.

Optional magnetic grille available separately.


Product highlights:

  • pair of speakers for music or home theater
  • 1" vented aluminum dome tweeter with waveguide
  • 5-1/4" aluminum woofer
  • Uni-Q® driver array technology creates a larger listening "sweet spot"
    • tweeter and woofer are concentrically mounted to create a single "point source" of sound
  • frequency response: 51-28,000 Hz (±3 dB)
  • sensitivity: 86 dB
  • impedance: 8 ohms
  • recommended amplifier power: 10-100 watts
  • bass-reflex cabinet with CFD (Computational Fluid Dynamics) rear-firing port for accurate, musical bass
  • 5-way binding post speaker terminals
  • optional magnetic grille available separately
  • 7-1/8"W x 12-1/8"H x 11"D (with rubber feet)
  • weight: 12.3 lbs. (each)
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # Q150B

What's in the box:

  • 2 Bookshelf loudspeakers
  • 2 Foam port plugs
  • 8 Self-adhesive rubber feet
  • Owner's Manual
  • Warranty Information

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More details on the KEF Q150

Stacey B.

Features & specs

Enclosure Bass Reflex
Finish MDF/Vinyl-wrapped
Color Black
Video Shielded No
Tweeter Type Dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Woofer Size (inches) 5.25
Woofer Composition Aluminum
Woofer Surround Rubber
Power Range 10-100
Sensitivity 86 dB
Impedance (Ohms) 8
Frequency Response 51-28k Hz
Connector Type Post
Bi-amp Inputs No
Height (inches) 11-15/16
Width (inches) 7-1/8
Depth (inches) 11-1/16
Weight (pounds) 12.3
Mounting Bracket Included No
Recommended Stand Height (inches) 18-24
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research


Uni-Q Driver Array: At the heart of the Q Series loudspeaker is the Uni-Q driver array. This signature innovation by KEF places the tweeter in the acoustic center of the mid-bass cone, with both drivers acting as a single point source. The result is a more detailed, accurate three-dimensional sound image, which is dispersed more evenly throughout the room than is possible with any conventional speaker. The Uni-Q driver array is made up of a 1" aluminum dome tweeter and a 5.25" aluminum mid-bass woofer.

  • 1" Aluminum Dome Tweeter: At the center of the Uni-Q driver array is a 1" aluminum dome tweeter that utilizes KEF's "tangerine" waveguide over the tweeter dome for ultra-wide dispersion. Further enhancements to the 1" aluminum dome tweeter is a damped loading tube and a cone-neck de-coupler. The damped tweeter loading tube reduces any harshness in the lower treble frequencies by gently terminating the sound produced from the rear. The cone-neck de-coupler reduces output in the cone breakup region to improve high frequency performance.
  • 5.25" Aluminum Mid-Bass Woofer: The 5.25" mid-bass woofer features an aluminum cone structure that has been engineered reduce cone breakup and improve midrange performance. The woofer's optimized suspension allows more movement, better controlled excursion, and lower distortion for accurate bass performance. As well as allowing the woofer's cone its full extension, KEF's ingenious Z-flex surround guides the sound from the tweeter across the surround without any disturbance or secondary radiation.

Centered Drivers: To optimize the high resolution purity of the Q Series bookshelf speaker, the Uni-Q driver array is positioned to the center of the cabinet to reduce unwanted internal resonance and adding refinement to sonic clarity and detail. Expect to hear clear highs, smooth midrange and clean bass with minimum distortion at any volume level.

Computational Fluid Dynamics (CFD) Port Design: Featuring a Computational Fluid Dynamics (CFD) port design with the port positioned to the rear of the speaker, clarity is improved by reducing the audibility of the midrange leakage through the port. The port is also fared to minimize turbulence at high levels and reduce port noise with less low frequency compression.

Note: Foam port plugs are included to insert into the rear-firing ports, if the bass is to "boomy" due to room placement.

Sleek Cabinet Design: The sculpted Q Series finish epitomizes KEF's approach with seamless, sleek cabinets unblemished by visible fittings and joints. Q Series speakers are coated with a fine satin finish with matching driver colors. If you wish to conceal the drivers, optional magnetically attached speaker grilles (see Accessories Tab) are available and sold separately.

Gold-Plated Binding Post Terminals: On the rear of the speaker cabinet is a pair of heavy-duty, gold-plated binding post terminals that will accept bare wire (up to 10AWG), pin-connectors, spade-lugs, and banana plugs (single only). Plastic inserts must be removed from the binding posts to use banana plugs.

Mounting & Placement Options: The bookshelf speaker can simply be placed on a stand, table-top, shelf, or other flat-surface. The included self-adhesive rubber feet protect your furniture and add approximately 0.1875" to the overall height of the speaker. A pair of speakers should be positioned 6' to 10' apart and placed between 18" to 24" off the floor. They should be positioned at least 9" from the back wall due to their rear-firing port and 39" from side walls. The speakers can be "toed-in" or angled inward toward the main listening area to improve stereo imaging and soundstage.

Note: There are no included brackets, keyhole slots, or threaded inserts to accommodate wall mounting.

Q Series: Q Series speakers by KEF deliver natural, accurate, high-resolution sound. First introduced in 1991, the multiple award-winning Q Series has long delighted music lovers and audiophiles with outstanding sound quality and innovative design. The Q Series, now in its 8th iteration, brings high resolution sound with more depth and more clarity. The Q Series consists of three floorstanding speakers (Q550/Q750/Q950), two bookshelf speakers (Q150/Q350), center channel speaker (Q650C), and Dolby Atmos speaker (Q50A) - all sold separately.

Optional Powered Subwoofer: A KEF Kube series powered subwoofer (sold separately) is the perfect addition to the Q Series loudspeakers.

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Customer Q&A

Crutchfield asked: Why did you buy this?
Well reviewed product at my price point. [ RAYMOND  Jan 29, 2019 ]
great review and price [ Narongyot  Jan 23, 2019 ]
Sale price, excellent value, concentric mid/tweeter design, brand reputation, style/looks, [ Victor  Jan 08, 2019 ]
good reviews on your site and the sale price. [ Manjit  Dec 31, 2018 ]
Price and reputation [ Kirk  Dec 31, 2018 ]
Lots of on-line study. Sale price brought the Q150's within my reach. I am using one of the first 4 I bought as a center speaker, and it does well, so I am getting 2 more to fill in the right surround spot, with one Q150 as a spare. The SB-2000 is an upgrade from my venerable Polk PSW300, and internet studies showed it as a good value for my 15.5' x 15.5' x 8' home theater. [ David  Dec 08, 2018 ]
research, special discount [ Lieven DeBock  Dec 05, 2018 ]
This is the second pair of Q150s I've ordered. I've been an audiophile for 50 years. These speakers are more satisfying than many much more expensive speakers I've heard. At $300/pr they are a ridiculously good buy. I've been listening again to old records and CDs for the past few days and the music is beautiful. [ Howard  Nov 30, 2018 ]
Long time KEF loyalist. When the Q150's popped up on a "black Friday" sale, I knew I had to get these to finally finish my 7.2 home theater. I will be using the Q150's to replace my beloved KEF KHT3005 satellites that were handling the rear speakers in my 5.1. I'm certain they will do the job better, I only hope they don't make me want to replace my Old School KEF XQ5's and XQ2c. [ Michael  Nov 27, 2018 ]
company reputation and representative recommendation [ Garnett E.  Nov 26, 2018 ]
Talked to agent who helped with matching speakers to my recently purchased bluesound powernode 2. [ Andrew  Aug 18, 2018 ]
Great product at an enticing price. [ John  Jun 10, 2019 ]
Great reviews, low price on sale [ Andrew  Jun 07, 2019 ]
They're pretty. [ New User  Nov 25, 2018 ]

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Enjoy fuller sound from a larger woofer and cabinet

The KEF Q350 offers these features:
  • 6-1/2" aluminum woofer
  • recommended amplifier power: 15-120 watts
  • sensitivity: 87 dB
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