Contents
KEF Q150 Bookshelf Speaker
Introduction
Thank you for purchasing Q Series. We are confident that it will provide reliable, high performance sound for many years to come. Please read this manual fully before you attempt any connections to Q Series.
Important Points
- Follow this manual carefully for best results from your speakers
- Read and return warranty card
- Clean with a dry lint free cloth
- Do not use spirit based cleaners.
- Avoid damp
- Avoid temperature extremes
- Avoid direct sunlight
- SAFETY NOTICE! trailing cables are dangerous, secure all cables
Plinth – QSSO I Q750 I Q9510

Connections
POSITIONING

Specifications
Model | Q ISO | Q350 |
Design | 2-way bass reflex | 2-way bass reflex |
Drive units | 1 30mm (5.25 in.) aluminium Un i-Q
25mm ( I in.) vented aluminium dome HF |
1 6 5mm (6.Sin.) aluminium Uni-Q
25mm ( I in.) vented aluminium dome HF |
Frequency range free fie ld (-6db) | 47Hz-50kHz | 42Hz-50kHz |
Frequency response (± 3d b) | 5 1H z-28kHz | 63Hz-28kHz |
Crossover frequency | 2.SkHz | 2.SkHz |
Ampli fier requirements | 10-IOOW | 1 5-1 20W |
Sensit ivity (2.83v/l m) | 86dB | 87dB |
Maximum outp ut | 108 d B | I IOdB |
Nom inal impedance | 80 (min.3.70) | 80 (min.3.70) |
Weight | 5.6kg ( 1 2.3 lbs) | 7.6kg (16.8 lbs) |
Dimension (H x W x D) | 303 x 180 x 278 mm | 358 x 21 0 x 306 mm |
Dimens ion (H x W x D) * with ru b ber feet | 307 x 180 x 278 mm | 362 x 21 0 x 306 mm |
Model | QSSO | Q750 | Q950 |
Design | 2.5-waybass reflex | 2.5-waybass reflex | 2.5-waybass reflex |
Drive units | 130mm (S.2Sin .) aluminium Uni-Q | 165mm (6.Sin.) alum inium Uni-Q | 200mm (Sin.) alum inium Uni -Q |
25mm ( I in.) vented aluminium dome HF | 25mm (I in.) vented aluminium dome HF | 38mm (I .Sin.) vented aluminium dome HF | |
130mm (S.25in,) Hybrid aluminium LF
2 x 130mm (S.2Sin .) aluminium ABR |
165mm (6.Sin.) Hybrid aluminium LF
2 x 165mm (6.Sin.) aluminium ABR |
200mm (Sin.) Hybrid aluminium LF
2 x 200mm (Sin.) alumin ium ABR |
|
Frequency range free fie ld (-6db) | 45Hz-SOkHz | 42Hz-50kHz | 38Hz-33kHz |
Frequency response (±3db) | 58Hz -28kHz | 48Hz-28kHz | 44Hz-28kHz |
Crossover frequency | 2.SkHz | 2.SkHz | 2.2kHz |
Amplifier requirements | 15-130W | 15-ISOW | 15-200W |
Sensit ivity (2.83v/ Im) | 87dB | 88dB | 91dB |
Maximum output | I IOdB | 11 l d B | I 1 3dB |
Nominal impedance | 80 (m in .3.SO) | 80 (min.3.80) | 80 (min.3.20) |
Weight | 14.5kg (32 lb s) | 16.5kg (36.4 l bs) | 20.6kg (45.4 l bs) |
Dimension (H x W x D) | 873x 1 8 0 x 278 mm | 923 x 210x 306mm | 1 06 2 x 244 x 328 mm |
Dimension (H x W x D) -With plinth | 926 x 299 x 310mm | 977 x 323 x 31 0 mm | 1 116 x 357 x 328 mm |
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 and BLADE loudspeakers, and delivers them to more people than ever before.
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 Series continues to win awards globally by unlocking unparalleled detail and depth for loudspeakers in its class.
‘Sit-anywhere’ Uni-Q sound
By adapting the technologies found in BLADE and REFERENCE, Q Series delivers the experience of both music and film with clarity, depth and detail. The signature Uni-Q driver array, a concept featured on practically every 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. Three floorstanding models and two bookshelf speakers, ensure that no matter the room size or personal preference, the Q Series can deliver an engaging, 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 seamless soundstage with voices coming through crisp and clear. The Q250c is also designed to be used as an LCR speaker for positioning in cabinets and alcoves.
The Q50a can either be wall mounted or placed on the top of the main speakers to deliver a convincingly enveloping Dolby Atmos experience for those 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 even more 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 gives them a refined finish. The Q Series has also been designed to complement any room, with tone-matched drive units and a choice of premium 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 Year 2017 (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
Accessories
Model | Q950
Black Cloth Grille |
Q750
Black Cloth Grille |
Q550
Black Cloth Grille |
Q350
Black Cloth Grille |
Q150
Black Cloth Grille |
Weight | 0.8kg (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 |
Colour | Black | Black | Black | Black | Black |
Model | Q650c
Black Cloth Grille |
Q250c
Black Cloth Grille |
B2
Wall Bracket |
Weight | 0.4kg (0.88 lbs) | 0.4kg (0.88 lbs) | Bracket: 0.33kg each Rubber: 32g each |
Dimension (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 |
Colour | Black | Black | Black |
USA
GP Acoustics (US) Inc.
10 Timber Lane, Marlboro, New Jersey 07746 U.S.A.
Tel: +I (732) 683 2356
Fax: +1 (732) 683 2358
Email: [email protected]
United Kingdom
GP Acoustics (UK) Limited
Eccleston Road, Tovil, Maidstone,
Kent, MEI5 6QP U.K.
Tel: +44 (0) 1622 672261
Fax: +44 (0) 1622 750653
Email: [email protected]