Award-winning depth and clarity
Everybody deserves great sound. Which is why KEF’s Q Series takes
cutting-edge acoustic technology from the legendary REFERENCE andBLADE loudspeakers, and delivers them to more people than everbefore.
Q Series has benefitted from this ‘trickle-down’ approach since it was
first launched in 1991, and this 8th iteration has once again redefined‘entry level’ sound quality. Representing exceptional value, the Q Seriescontinues to win awards globally by unlocking unparalleled detail anddepth for loudspeakers in its class.

‘Sit-anywhere’ Uni-Q soundBy adapting the technologies found in BLADE and REFERENCE, Q Seriesdelivers the experience of both music and film with clarity, depth anddetail. The signature Uni-Q driver array, a concept featured on practicallyevery KEF product, dramatically widens the audio ‘sweet spot’, therefore
allowing everybody in the room to experience natural, detailed sound.
Other features including the damped tweeter loading tube and redesigned
auxiliary bass radiators (ABR) further improve levels of detail and bass
depth.

Designed for you
The Q Series has an option for everybody and every room. Threefloorstanding models and two bookshelf speakers, ensure that no matterthe room size or personal preference, the Q Series can deliver anengaging, room-filling experience.

Home Theatre beyond the expectation
The Q Series also brings the magic of cinema sound to your home. The
centre speakers, including the powerful Q650c and compact Q250c,
provide a perfect tonal match to the main speakers, ensuring a seamlesssoundstage with voices coming through crisp and clear. The Q250c is also
designed to be used as an LCR speaker for positioning in cabinets andalcoves.
The Q50a can either be wall mounted or placed on the top of the main
speakers to deliver a convincingly enveloping Dolby Atmos experience forthose people that demand the best in cinematic sound. Plus, the Q Series
has a perfect partner in the KUBE range of KEF subwoofers for an evenmore impressive bass performance.

Elegance by design
Designed to blend seamlessly into any home, all Q Series speakers feature
a clean, contemporary, and minimalist design. A satin finish to the exterior
surfaces imbues them with a premium glow, while the seamless baffle

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1gives them a refined finish. The Q Series has also been designed to complement any room, with tone-matched drive units and a choice ofpremium quality black, white and walnut finishes.

Award-winning by nature
Benefiting as it does from technology developed for KEF’s flagship ranges, it is no surprise that the Q Series has been internationally lauded
throughout its existence. Representing exceptional value, the latest Q Series has won awards that include What Hi-Fi’s Product of the Year2017 (Q350) and EISA’s Best Product 2018-2019 for Home Theatre Speaker System.

Features:• Uni-Q ‘single point source’ driver array disperses clean and accurate sound more evenly• Damped Tweeter Loading Tube for detailed and natural HF performance• REFERENCE inspired crossover with new, low distortion inductors• Floorstanders (Q950, Q750, Q550):– Closed box midrange cabinet, drastically reducing distortion– LF driver with dual ABRs for deeper and tighter bass reproduction• Centre speakers:– Closed box midrange cabinet for drastically reduced distortion (Q650c only)– ABRs for deeper bass reproduction• Seamless baffles with magnetic grilles• Available in black, white and walnut finishes

Specifications

Model

Q950

Q750

Q550

DesignTwo and a half-way bass reflex

Two and a half-way bass reflex

Two and a half-way bass reflex

Drive units

200mm (8in.) aluminium Uni-Q
38mm (1.5in.) vented aluminium dome HF
200mm (8in.) Hybrid aluminium LF
2 x 200mm (8in.) aluminium ABR

165mm (6.5in.) aluminium Uni-Q
25mm (1in.) vented aluminium dome HF
165mm (6.5in.) Hybrid aluminium LF
2 x 165mm (6.5in.) aluminium ABR

130mm (5.25in.) aluminium Uni-Q
25mm (1in.) vented aluminium dome HF
130mm (5.25in.) Hybrid aluminium LF
2 x 130mm (5.25in.) aluminium ABR

Frequency range Free Field (-6dB)

38Hz-33kHz

42Hz-50kHz

45Hz-50kHz

Frequency Response (±3dB)

44Hz-28kHz

48Hz-28kHz

58Hz-28kHz

Crossover Frequency

2.2kHz2.5kHz2.5kHzAmplifier requirements

15-200W

15-150W

15-130W

Sensitivity (2.83V/1m)

91dB

88dB

87dB

Maximum Output

113dB

111dB

110dB

Nominal impedance

8 Ω (min.3.2Ω )8Ω (min.3.8Ω )8Ω (min.3.5Ω )Weight *20.6kg (45.4 lbs)

16.5kg (36.4 lbs)14.5kg (32 lbs)

Dimension (H x W x D) *1062 x 244 x 328 mm

923 x 210 x 306 mm

873 x 180 x 278 mm

Dimension (H x W x D) with Plinth *1116 x 357 x 328 mm

977 x 323 x 310 mm

926 x 299 x 310 mm

ColourBlack / White / WalnutBlack / White / WalnutBlack / White / Walnut* Measurement per unit
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2Model

Q350

Q150

Q650c

Q250c

Q50a

DesignTwo-way bass reflex

Two-way bass reflex

Two and a half-way bass reflex

Two-way bass reflex

Two-way Closed Box

Drive units

165mm (6.5in.)aluminium Uni-Q
25mm (1in.) vented
aluminium dome HF

130mm (5.25in.)aluminium Uni-Q
25mm (1in.) vented
aluminium dome HF

165mm (6.5in.) aluminiumUni-Q
25mm (1in.) vented aluminium
dome HF
165mm (6.5in.) Hybrid
aluminium LF
165mm (6.5in.) aluminium
ABR

130mm (5.25in.)aluminium Uni-Q
25mm (1in.) vented
aluminium dome HF
2 x 130mm (5.25in.)aluminium ABR

130mm (5.25in.) aluminium Uni-Q
25mm (1in.) vented aluminium dome
HF

Frequency range Free Field (-6dB) 42Hz-50kHz

47Hz-50kHz

55Hz-50kHz

57Hz-50kHz

96Hz-19.5kHz

Frequency Response (±3dB)

63Hz-28kHz

51Hz-28kHz

64Hz-28kHz

68Hz-28kHz

105Hz-18.5kHz

Crossover Frequency

2.5kHz2.5kHz2.5kHz2.5kHz2.5kHzAmplifier requirements

15-120W

10-100W

15-150W

10-100W

10-100W

Sensitivity (2.83V/1m)

87dB

86dB

87dB

87dB

86dB

Maximum Output

110dB

108dB

110dB

108dB

106dB

Nominal impedance

8 Ω (min.3.7 Ω )

8 Ω (min.3.7Ω )8Ω (min.4.2Ω )8Ω (min.3.4Ω )8Ω (min.4.6Ω )Weight *7.6kg (16.8 lbs)

5.6kg (12.3 lbs)

13.6kg (30 lbs)

7.5kg (16.5 lbs)

4.25kg (9.4 lbs)

Dimensions (H x W x D) *358 x 210 x 306 mm

303 x 180 x 278 mm

210 x 629 x 304 mm

180 x 525 x 214 mm

174 x 180 x 259 mm

Dimensions (H x W x D)
with Rubber Feet *362 x 210 x 306 mm

307 x 180 x 278 mm

214 x 629 x 304 mm

184 x 525 x 214 mm

178 x 180 x 259 mm

ColourBlack / White / WalnutBlack / White / WalnutBlack / White / WalnutBlack / White / WalnutBlack / White* Measurement per unit

Accessories

ModelQ950
Black Cloth Grille

Q750
Black Cloth Grille

Q550
Black Cloth Grille

Q350
Black Cloth Grille

Q150
Black Cloth Grille

Weight0.8kg (1.76 lbs)

0.6kg (1.32 lbs)

0.5kg (1.1 lbs)

0.2kg (0.44 lbs)

0.15kg (0.33 lbs)

Dimension (H x W x D)

1035 x 236 x 10 mm

898 x 204 x 10 mm

845 x 174 x 13 mm

330 x 200 x 10 mm

274 x 173 x 9 mm

ColourBlackBlackBlackBlack

Black

ModelQ650c
Black Cloth Grille

Q250c
Black Cloth Grille

B2
Wall Bracket

Weight0.4kg (0.88 lbs)

0.4kg (0.88 lbs)

Bracket: 0.33kg each
Rubber: 32g eachDimension (H x W x D)

617 x 202 x 9 mm

516 x 170 x 9mm

Bracket: 39mm x 148mm x 28mm
Rubber: 20mm x 60mm x 26mm

ColourBlackBlackBlack

Visit: KEF.com for more about KEF and its products.
KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE.
08.2019 | Q Series3