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KEF Q350 Bookshelf speakers (White)

Item # 991Q350W

These attractive, full-size bookshelf speakers create a wide soundstage with pinpoint stereo imaging.

These attractive, full-size bookshelf speakers create a wide soundstage with pinpoint stereo imaging.

6 questions - 16 answers

Item # 991Q350W

In stock
$799.99 pair

Other options

About the KEF Q350

Kramer Crane

Powerful performance from KEF

Building a new audio system for your home? I recommend checking out KEF's Q350s. These attractive, full-size 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.

Powerful performance from KEF

Building a new audio system for your home? I recommend checking out KEF's Q350s. These attractive, full-size 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 Q350 bookshelf speakers

An expanded view of the Uni-Q driver assembly shows the detailed design and build quality that goes into making each Q350.

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 6-1/2" 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. 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 grilles (sold individually) available separately.

Part of a complete KEF Q surround sound system

The KEF Q Series features an array of speakers that are voice-matched for compatibility in an immersive surround sound system:

Got wire?

Most speakers don't include any. Read our article about choosing and installing speaker wire.
Shop our selection of speaker wire.


Product highlights:

  • pair of speakers for music or home theater
  • 1" vented aluminum dome tweeter with waveguide
  • 6-1/2" 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: 63-28,000 Hz (±3 dB)
  • sensitivity: 87 dB
  • impedance: 8 ohms
  • recommended amplifier power: 15-120 watts
  • bass-reflex cabinet with CFD (Computational Fluid Dynamics) rear-firing port for accurate, musical bass
  • binding post speaker terminals
  • optional magnetic grille available separately
  • 8-5/16"W x 14-1/4"H x 12-1/16"D (with rubber feet)
  • weight: 16.8 lbs. (each)
  • warranty: 5 years
  • MFR # Q350WH

What's in the box:

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

Customer reviews for KEF Q350

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4.5 out of 5 stars
67 reviews

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More details on the KEF Q350

Stacey B.

Features & specs

Enclosure Ported
Finish MDF/Vinyl-wrapped
Color White
Tweeter Type Hard-Dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Woofer Size (inches) 6.5
Woofer Composition Aluminum
Woofer Surround Rubber
Power Range 10-120
Sensitivity 87 dB
Impedance (Ohms) 8
Frequency Response 63-28k Hz
Connector Type Binding post
Bi-amp Inputs No
Height (inches) 14-1/16
Width (inches) 8-5/16
Depth (inches) 12-1/16
Weight (pounds) 16.8
Wall-mountable No
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 6.5" 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.
  • 6.5" Aluminum Mid-Bass Woofer: The 6.5" mid-bass woofer features an aluminum cone structure that has been engineered to 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 flared 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: Crutchfield does not offer a wall-mount bracket for the Q Series bookshelf speaker. However, a wall-mount bracket is available directly from the manufacturer.

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), two center channel speakers (Q650C/Q250C), 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

6 questions already asked

How do these speakers perform if I mount them on the wall?
alan  Jul 04, 2023
3 answers
Ideally they should be about 9 inches or more away from a wall. IMO testing in my house, I noticed an audible drop in the bass when they were closer to the wall, as they have a rear bass port. This can be addressed somewhat through adjusting a subwoofer if you have one.
continual listener  Nov 17, 2023
Hello- To be honest, I'm not sure. My Kefs are on at opposite ends of a long bookshelf/entertainment center, not on the wall. They sound great, I would highly recommend them, but as for wall-mounted, I can't speak to that. Thanks.
keith  Jul 06, 2023
I'm sure they would be fine. I do know that they don't have anyway of being mounted from the speaker themselves. One big thing to consider if you came up with a way to mount them, the port of the speaker is on the back, so you would need to consider some space unless you use the foam plugs. Hope this is helpful.
casey  Jul 05, 2023
Will these shut off if the speaker isn't correct gage?
george  Mar 10, 2022
2 answers
These are passive speakers, so no.
continual listener  Nov 17, 2023
Don't understand the question.
leslie  Mar 10, 2022
Reviews indicate that these speakers need to be played at a fairly high volume for the best sound. Is this your experience?
kenneth  Mar 10, 2022
6 answers
I cannot provide a good answer. They will serve as surround speakers in a home theatre set up. When the set up is completed the new AVR will set the volume for these speakers (Q350). There are only 2 of these in system..
william f  Mar 12, 2022
yes, but played too loud and I would hear a slight woofer cone buzz at full orchestral tuttis
kaning  Mar 12, 2022
Hi Kenneth, I use them in my home office, about 8' by 8'. They do sound better at higher volume, but I like them, I listen mostly to jazz with them. I use them mostly at lower volume. I did find that it took longer to break them in for listening at lower volume. The overall sound is very good, with good stereo separation and pleasing reproduction of the timbre of the instruments.
michael  Mar 11, 2022
I never played them very loud, but really enjoyed them. Loved their bass response.
conan  Mar 11, 2022
I recommend pairing these speakers to a good receiver. I run these with a 2ch yamaha that pumps out 120w per channel. Records on my pro-ject sound buttery smooth and warm on these speakers. If you are looking for loudness, i'd step up to the floorstanding speakers. Or u can add a nice sub that has both a crossfade and phasing knob. Of course placement matters as well!
juan  Mar 10, 2022
I have these as home office speakers and especially enjoy them at low levels late at night when my wife is asleep. It's a pretty small room, but the bass is good and the detail is there. I can't give you any db levels but I don't feel they are one of those speakers that only sound good cranked up, at least not in a smaller room.
paul  Mar 10, 2022
How far away from a wall do these need to be placed? They're so deep I'm concerned I won't have enough space.
adam  Sep 06, 2020
3 answers
Hi, i have mounted them using a steel mount which i bought online and these are couple of inches away from the wall and they sound great
deepak  Sep 18, 2020
Minimum distance from the wall = 9 inches ( per the owner's manual.)
christopher  Sep 08, 2020
I actually exchanged the KEF s for Martin Logan 35s which I have found are much better.
todd  Sep 06, 2020
wall mount- why is it only showing on your image of the walnut Q350 and not the other color options?
david  May 07, 2020
1 answer
I am unsure why we show that image. none of them come with wall mounting brackets, not even the walnut. Wall mounting these is not recommended due to the rear firing port.
thomas  May 27, 2020 (Staff)

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