The KEF 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.
KEF Q550 Features and Specifications:
Compact 2.5-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.
The Pleasure of Sonic Perfection
Q Series speakers by KEF bring you the intensity of a musical performance in natural, accurate high-resolution sound. Since 1991 the award-winning Q Series has delighted music lovers with outstanding sound quality and innovative design. Its 8th iteration brings more depth and clarity for greater realism.
“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.
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 is eliminated from the crossover, allowing a more natural roll-off between drivers.
Tweaking the tweeter A word about drums and bass
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. 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.
Specifications
| Model | Q550 Floorstanding Speaker |
| 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 2x 130mm (5.25in.) aluminium 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 Plinths | 926mm (36.45 inches) x 299mm (11.77 inches) x 310mm (12.20 inches) |
KEF Q Series Satin White
KEF Q Series Satin Black
