KEF Q350 Bookshelf Speaker Review

4.27 Mixed Usages
4.2 Dialogue & Vocal Accuracy:
4.4 Treble Accuracy:
4.3 Bass Accuracy:
4.2 Imaging & Soundstage:
4.2 Dynamic Range:
Release year: 2017 Rating: 4.7 Warranty: 5 years 1" aluminum dome 6.5" aluminum dome woofer CFD port stereo speaker desktop speaker home theater

KEF Q350 speakers have impressive stereo images and can deliver room-filling sound in compact spaces. They have great clarity and can give detailed performance. Music and movie effects sound quite well due to deep and smooth bass. For movie maniacs, we suggest at least a center channel. Once you allow them through long hours of break-in, you will see how they deliver warm and rich tone. Soundfield from this 2-way speaker is powerful and engaging.

Our Verdict

KEF Q350 is a versatile speaker that is ideal for home or office use. The speaker remains clear and undistorted even at high volumes. Allow the speakers to go through break-in and use the EQ options (if available) in your receiver to tweak the sound. They are compact in size and will not take up much space. We suggest you to place them in speaker stands but they will also fit fine on tables or open shelves. Make sure to use a grille if you have pets or children in your house.

  • Sturdy built
  • Consistent performance at all volumes
  • Well dispersed sound
  • Non resonant cabinet
  • Great stereo imaging
  • No speaker grille included
Where to buy



Speaker Type Bookshelf Speaker
Number Of Channels 2.0 way speaker
Amplification Type Passive Speaker (External Amp)
Power Source AC Powered


Drive Unit 2x2
Tweeter Type aluminium dome
Tweeter Size (inches) 1
Midrange Size (inches) N/A
Midrange Type N/A
Woofer Size (inches) 6.5
Woofer Type aluminium Uni-Q


Power Range 15-120W
Sensitivity 87 dB (2.83V, 1m)
Impedance 8 ohms
Frequency Range 63Hz-28kHz (±3dB)
Crossover Frequencies 2.5kHz


Speaker Level Input N/A
Speaker Wire Input: Yes
Line Level Input N/A
Digital Input (Optical) N/A
Digital Input (Coaxial) N/A
RCA Input N/A
3.5mm Stereo Analog Input N/A
Aux Input N/A
HDMI Input N/A
Bi-amp Input: N/A
USB Port N/A
Subwoofer Output N/A


Bluetooth N/A
Wi-Fi N/A


Connector Type Gold plated binding post
Compatible Connector Types bare wire, pin-connectors, spade-lugs, and banana plugs (single only).
Speaker Wire Compatibility standard speaker wire


Bass Accuracy: Balanced and deep lows
Dialogue & Vocal Accuracy: Clear vocals
Treble Accuracy Rich and accurate highs
Imaging & Soundstage: Wide and powerful imaging and soundstage
Dynamic Range: Good dynamic range
Power Handling: Power handling is good.
Frequency Response: It has wide frequency response.
Transient Response: Decent transient response


Enclosure Ported
Finish MDF
Color black, white, walnut


Height (inches) 14.1
Width (inches) 8.3
Depth (inches) 12
Weight (pounds) 16.8lbs
Recommended Stand Height (inches) 18-24


Handheld Remote N/A
Control by app N/A
Amazon Alexa N/A
Google Assistant N/A


Accessories: 2 Bookshelf speakers, Foam port plugs, rubber feet, Manual, Warranty Information
User manual: Yes
Where to buy

Details Review


KEF Q350 is a passive bookshelf speaker that has an MDF cabinet. It has a rear port on the back side, so you need to leave some room allowing the speakers to breathe. It comes with rubber feet so that it stays put in one place and doesn’t damage the surface. Like other traditional speakers, it doesn’t come with speaker grilles, so you need to purchase them separately. It comes with foam plugs that you need to insert on bass port so that you can use them if you don’t have space in your room.


KEF Q350 has two drivers in a single point. It has 1” tweeter and 6.5” woofer driver. The tweeter is positioned in the acoustic center of the mid-bass cone. This aluminum dome tweeter will eliminate any ‘sharp’ tone in the treble region making it more pleasant. Highs are well dispersed and precise. Like the Q150 KEF speaker, it uses tangerine waveguide. If you look at the aluminum cone woofer, you will see this design will decrease cone breakup and distortion.

On the other hand, the mids are decent and lows are well-controlled that packs a punch. For small to mid-sized rooms, you can play easily without a subwoofer. The speaker has 3-dimensional sound space that surround the user. One reason to place the Uni-Q driver array in the center of the speaker is to eliminate any resonance. On the rear side of the cabinet there is a CFD port.

This flared port is designed to reduce turbulence and port noise. It will also enhance the low ends making them more efficient and accurate.

Speaker placement:

Positioning speakers is quite similar to the KEF Q150. You need to angle the speaker towards the user. Distance between speaker to speaker and speaker and user should be 6-10 feet. Then leave a gap of around 39” from rear wall and 9” from side wall. Place them on speaker stand, tabletop or shelves so that they are at ear level.

Connectivity and control:

Connectivity of KEF Q350 will depend on the external amplifier or AV receiver you choose. Connect audio sources like TV, PC, turntable to the KEF Q350 and use the options of the amp to control the speaker. Music are handled quite well and the speaker can handle  

Use case:

KEF Q350 speaker is best for medium sized rooms. For small rooms you will not need any sub. This is true for mid-sized spaces but will depend on user preference. In large rooms, it might sound weak so instead of relying only on this stereo system, create a home theater.  

Compatible device:

Choose one from our amplifier list or pick one as per your own choice: Marantz NR1607, Yamaha A-S 801, Marantz PM-66SE, Rega Brio Amp, NAD C 316BEE V2, NAD C 338 amp, Denon AVR-X3300W, Sony STR-DN-1080 receiver, etc.

Connect the following speakers for your home theater: floorstanding speakers (Q550/Q750/Q950), bookshelf speakers (Q150), center channel speakers (Q650C/Q250C), and Dolby Atmos speaker (Q50A). Then connect a KED Kube series powered subwoofer. Choose the woofer driver as per your room size.


KEF Q350 is a mid-priced speaker. There are other cheap models but this KEF model has a unique driver design that improves the sound. Since in midsized spaces you will not need a sub, it will cut your expenses that you would have otherwise spent on a sub.


How to choose the best amp or receiver for KEF Q350?

Initially you need to match the impedance and power rating of the speaker with the amp. Then, you can look at other features like microphone and room calibration software, EQ settings, remote control and voice command support. These will make usage easier.

When should I buy a subwoofer for KEF Q350?

Use the speakers for weeks and listen to the sound. For compact spaces you will not need a sub if you are not a bass head. Otherwise, you will need one.

Where to buy


Select Two Audio / Video System for Detailed Comparison


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