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Model: Q550W
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  • Datasheet

KEF Floorstanding Speaker. Two and half-way bass reflex. Uni-Q array: 1 x 5.15" uni-q,1 x 1" HF, 1 x 5.25" LF & 2 x 5.25 ABR drivers. Colour White. SOLD AS PAIR

Q550 is the smallest size among the Q Series floor standers. Featuring the KEF signature Uni-Q driver array paired with a 130mm (5.25 inch) aluminium bass driver and two matching ABRs, Q550 delivers a phenomenal audiophile performance with clarity and more controlled bass.

 

"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 idea 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.

 

Damped tweeter loading tube

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

The closed box midrange cabinet design reduces the load on the Uni-Q midrange cone, increasing clarity and detail while delivering cleaner, punchier bass. Midrange clarity is enhanced again through improvements to the mid-bass driver that allowed the DC blocking capacitor to be eliminated. Its removal also created a more natural bass roll-off between the drivers.

 

Beefier LF drivers and ABRs

Low-frequency (LF) drivers now have a larger roll surround, along with a new suspension to 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 delivers better controlled and more impressive bass.

MODEL Q550
DESIGN Two and a half-way bass reflex
DRIVE UNITS 130mm (5.25in.) aluminium Uni-Q
25mm (1in.) vented aluminium dome HF
130mm (5.25in.) aluminium LF
2 x 130mm (5.25in.) aluminium ABR
FREQUENCY RANGE FREE FIELD 45Hz (-6dB)
FREQUENCY RESPONSE 58Hz - 28kHz (±3dB)
CROSSOVER FREQUENCIES 2.5kHz
MAXIMUM OUTPUT 110dB
AMPLIFIER REQUIREMENTS 15 - 130W
SENSITIVITY 87dB (2.83V/1m)
NOMINAL IMPEDANCE 8Ω (min.3.5Ω)
DIMENSIONS H x W x D:
873 x 180 x 278mm
926 x 299 x 310mm (with Plinth)
WEIGHT 14.5kg (32lbs)
UNIT MEASUREMENT Pair