KEFQ550newKEF Q550KEF Q550 Floor Standing Speaker. Brand new, just has no box. Did not fit client's cabinet, but the boxes were discarded. No marks on them, they are brand new! I tested them to be sure they w...800.00

KEF Q550 [Expired]

no longer for sale

KEF Q550 Floor Standing Speaker.  Brand new, just has no box.  Did not fit client's cabinet, but the boxes were discarded.  No marks on them, they are brand new!  I tested them to be sure they were perfect and they are.   Includes optional speaker grills.

Local pick up or delivery only.  Invoice made to buyer, full warranty.

Featuring the KEF signature Uni-Q driver array paired with a 130mm (5.25 inch) aluminum 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 ideal 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.




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


Maximum Output


Amplifier requirements



87dB (2.83V/1m)

Nominal Impedance

8 Ohms (min.3.5 Ohms)


H x W x D:
873 x 180 x 278 mm
926 x 299 x 310 mm (with Plinth)


14.5kg (32 lbs)

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