Q550 is the smallest size among the Q Series floorstanders. 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 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.
| 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 | 8 Ohms (min.3.5 Ohms) |
| Dimensions | H x W x D: 873 x 180 x 278 mm 926 x 299 x 310 mm (with Plinth) |
| Weight | 14.5kg (32 lbs) |
| Unit measurement | Pair |
| Document Download | Q Series Brochure Q Series Information Sheet Q Series User Manual |
KEF Officially Recertified Products are products displayed at KEF events, demonstration from a KEF Dealer, review samples, or customer returns. KEF certified technicians inspect and test each item to ensure it works 100% as new. Your purchase is covered by a full 5 year parts and labor warranty (2 year on electronics) valid at any authorized KEF repair center.
*Some product may have cosmetic blemishes (small dings, scuffs, or dents) but are sonically un-blemished.
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Warranty Period for repairing
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Drivers
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Electronics
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Accessory
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Hifi Speakers
Wireless HiFi Speakers Subwoofer Architectural Speakers |
5 years
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2 years
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2 years
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