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Q350 Bookshelf Speaker

Quick Overview

The remarkable Q Series bookshelf speakers excel when space is limited. Featuring the signature KEF Uni-Q driver array with Computational Fluid Dynamics (CFD) port design, the Q350s deliver detailed natural sound with high clarity and tight bass.

Black cloth magnetic speaker grilles come as standard. *UK only
  • Features
  • Specifications
  • Awards and Reviews

"Sit anywhere" Uni-Q sound

At the heart of the evolved Q Series is the Uni-Q driver array. The signature innovation places the tweeter in the acoustic centre of the midrange and bass cone, bringing the acoustic ideal of a single point source closer than ever to realisation. 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. Uni-Q's ultra-wide dispersion is further enhanced through KEF's 'tangerine' waveguide over the tweeter dome.

New system design

To optimise the high-resolution purity of the Q Series bookshelf speakers, the Uni-Q driver is repositioned to the center of the cabinet to reduce unwanted internal resonance and adding refinement to sonic clarity and detail. With the addition of the damped tweeter loading tube providing a gentle termination of sound produced from the back of the tweeter, lower treble performance is improved dramatically and a new low-distortion inductor on the crossover provides cleaner bass.

New system design

CFD-designed port

Featuring a Computational Fluid Dynamics (CFD) port design with the port repositioned to the rear of the speaker, clarity is improved by reducing the audibility of the midrange leakage through the port.

CFD-designed port


Additional Information

Model Q350
Design Two-way bass reflex
Drive Units 165mm (6.5in.) aluminium Uni-Q
25mm (1in.)vented aluminium dome HF
Frequency range free field 42Hz (-6dB)
Frequency Response 63Hz-28kHz (±3dB)
Crossover Frequencies 2.5kHz
Maximum Output 110dB
Amplifier requirements 15-120W
Sensitivity 87dB (2.83V/1m)
Nominal Impedance 8 Ohms (min.3.7 Ohms)
Dimensions H x W x D:
358 x 210 x 306 mm
362 x 210 x 306 mm (with Rubber Feet)
Weight 7.6kg(16.8lbs)
Unit measurement Pair
Document Download Q Series Brochure
Q Series Information Sheet
Q Series User Manual
Awards and Reviews

Product of the Year - BEST STANDMOUNT SPEAKER £400 -800 – WHAT HI-FI? AWARD

"KEF can hold its head up high: the Q350s are a cut above the rest. This level of clarify and refined detail isn't something we usually hear at this mid-range price."

Visit What Hi-Fi? site for full review | Download review

Year: 2017
Issuing Body: What Hi-Fi?
Country: United Kingdom
Product: Q350


"The KEF Q350s offer a sophisticated, insightful presentation that’s beyond their modest price." KEF Q350, What Hi-Fi?, June 2017 (Visit What Hi-Fi? site for full review)

Year: 2017
Issuing Body: What Hi-Fi?
Country: United Kingdom
Product: Q350

Meilleur Achat Haute Fidelite Award

"The Q350 is a real bargain, a masterpiece by KEF, with the maturity of its Uni-Q which proves the full validity of the basic concept."

Year: 2017
Country: France
Product: Q350

Five-Star Review – What Hi-Fi?

"Voices sound clear and characterful, and the integration between midrange and treble is seamless…It’s hard to pinpoint where one begins and the other ends – a testament to just how well the Uni-Q driver is tuned." (Visit What Hi-Fi? site for full review)

Year: 2017
Issuing Body: What Hi-Fi?
Country: United Kingdom
Product: Q350

Review – CNET

"The KEF Q350 neither over-hyped the treble nor pumped up the bass. Instead, it let the music speak for itself." (Issue Date: 5/30/17) (Visit CNET site for full review)

Year: 2017
Issuing Body: CNET
Country: USA
Product: Q350

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