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Q550 Floorstanding Speaker

Compact two-and-a-half-way floorstander

The Q550 2.5-way is far more capable than its compact size might suggest, delivering wide bandwidth and full scale with ease.

With the KEF signature Uni-Q driver, a 130mm (5.25 inch) aluminium bass driver and two matching ABRs the Q550 delivers phenomenal audiophile performance with clarity and power.

Priced as a SINGLE speaker, please add two to your cart.

Magnetic grilles sold separately.

Product Features
The Q550 2.5-way is far more capable than its compact size might suggest, delivering wide bandwidth and full scale with ease.
"Sit anywhere" Uni-Q sound
The Uni-Q driver array places the tweeter in the centre of the midrange and bass cone, bringing the acoustic ideal of a single point source closer than ever. The result, enhanced by KEF's 'tangerine' waveguide over the tweeter, is a more accurate three-dimensional sound that's dispersed evenly throughout the room.
KEF Q Series Uni-Q Driver Array
Tweaking the tweeter
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.
KEF Q Series tweeter upgrades
A word about drums and bass
The Q Series reproduces the nuances of bass instruments with ease. With a larger roll surround and new suspension KEF drivers produce cleaner bass at high volumes.

A new cone structure improves midrange clarity and an enhanced Auxiliary Bass Radiator (ABR) with a new surround and rear suspension enhances bass quality.

KEF Q Series bass drivers
New system design
Putting the Uni-Q driver in its own sealed cabinet reduces the load on the cone and increases clarity and detail while delivering cleaner bass. Midrange clarity is enhanced by driver improvements that mean the DC blocking capacitor to be eliminated from the crossover, allowing a more natural roll-off between drivers.
KEF Q Series Cabinet
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Spec
Model Q550 Floorstanding Speaker
Design Two and a half-way bass reflex
Drive Units 130mm (5.25in.) aluminum Uni-Q
25mm (1in.) vented aluminum dome HF
130mm (5.25in.) aluminum LF
2x 130mm (5.25in.) aluminum ABR
Frequency Range Free Field (-6dB) 45Hz
Frequency Response (±3dB) 58Hz - 28kHz
Crossover Frequency 2.5kHz
Amplifier Requirements 15-130W
Sensitivity (2.83V/1m) 87dB
Maximum Output 110dB
Nominal Impedance 8Ω (min.3.5Ω)
Weight 14.5kg (32 lbs)
Dimension (H X W X D) 873mm (34.37 inches) x 180mm (7.08 inches) x 278mm (10.94 inches)
Dimension (H X W X D) *with Plynths 926mm (36.45 inches) x 299mm (11.77 inches) x 310mm (12.20 inches)

** KEF reserves the right, in line with continuing research and development, to amend or change specifications. E&OE. **

Downloads
Q2017 Series Information Sheet • Open In New Window
• Download
Q2017 Product Manual • Open In New Window
• Download
Q Series Brochure Open In New Window
Download
Product Drawing Open In New Window
DXF File Download
DWG File Download

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