KEF Q550 Floor Speaker 2 and 1/2 Way 15-130W 87dB 5.25inch White

“Sit anywhere" Uni-Q Sound

At the heart of the evolved Q Series is the Uni-Q driver array. KEF\'s signature innovation places the tweeter in the acoustic center of the midrange cone, bringing the acoustic ideal of a single point source closer than ever to realisation. The result is a more detailed, more accurate three-dimensional sound image, which is dispersed more evenly throughout the room than is possible with a conventional speaker. Uni-Q\'s ultra-wide dispersion is further enhanced by KEF\'s \'tangerine\' waveguide over the tweeter dome.

Uni-Q sound taken to the next level

The closed box midrange cabinet design reduces the load on the Uni-Q midrange cone, increasing clarity and detail while delivering cleaner, punchier 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 response.

Redesigned Bass Drivers

Low-frequency (LF) drivers now have a larger roll surround, along with a new spider suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiators (ABRs) with a new surround and rear suspension delivers better controlled and more impressive bass.

Redesigned Bass Drivers

Low-frequency (LF) drivers now have a larger roll surround, along with a new spider suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiators (ABRs) with a new surround and rear suspension delivers better controlled and more impressive bass.

Floorstanders
The Q550 is the smallest floorstander in the Q Series line. Featuring KEF\'s signature Uni-Q driver array paired with a 130mm (5.25 inch) aluminium bass driver and two matching ABRs, the Q550 delivers a phenomenal audiophile performance with clarity, scale, and controlled bass. Great for large or small rooms the Q550 is available in Satin Black or Satin White finishes. Priced as a pair.

Twin Ported HiVe® II technology
Sealed Mid-range TLE®
2 x 8" long-throw RDT® bass drivers
1 x 4" RDT® mid-range driver
1 x C-CAM® high frequency ribbon transducer
All cabinet finishes have hand-upholstered front baffles in Ingleston Black premium grade leather
Finish options: Santos Rosewood veneer with clear gloss piano lacquer
Ebony veneer with clear gloss piano lacquer
Piano black gloss


Frequency Response: 28 Hz - 100 KHz
Sensitivity (1W@1M): 90 dB
Nominal Impedance:
4 Ohms
Maximum S.P.L
(Per pair in room): 118.6 dBA
Power Handling (RMS): 300 W
Recommended Amplifier Requirements (RMS): 100 - 300 W
Bass Alignment: Twin Ported HiVe II Technology
Sealed Mid-range TLE
Mid / H.F Crossover Frequency: 4000 Hz
Bass Low Pass Crossover Frequency: 550 Hz
Driver Unit Complement: 2 x 8" long throw RDT bass drivers
1 x 4" RDT mid-range driver
1 x C-CAM high frequency ribbon transducer
External Dimensions -
Including Fixed Plinth & Feet
(H x W x D): 1113 x 410 x 470 mm
(43 13/16 x 16 1/8 x 18 1/2)
Weight (each) including Plinth:
43.8Kg (96.4lbs)

User's Manual

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Dimensions | Metric :5-1/4" W x 5-1/8" D x 42" H | 13.3 x 13.0 x 106.7 cm
Height with Base | Metric :42-7/8" | 104.5 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 4-1/2" high definition midrange drivers; Two 4-1/2" high definition bass drivers; Two 4-1/2" pressure coupled bass radiators
Base Dimensions | Metric :8-3/4” W x 8-5/8” D | 22.2 x 21.9 cm
Accessories :Plastic Foot Tippers; Isolation Spikes
Frequency Response :35 Hz – 30 kHz
Impedance :Compatible with 8 Ohms outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :20 - 225 watts
A/V Receiver Crossover Setting :100 Hz
Inputs :One pair of 5 way binding posts
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black
Base :Tempered Glass
Packaging :One to a carton
Weight | Metric :23 lbs | 10.4 kg
Warranty :5 Years

Dimensions | Metric :4-1/16" W x 4-1/16" D x 39-1/4" H | 10.3 x 10.3 x 99.7 cm
Height with Base | Metric :40-1/8" | 101.9 cm
Accessories :Plastic Foot Tippers; Isolation Spikes
Frequency Response :40 Hz – 30 kHz
Base Dimensions | Metric :8-3/16” W x 8” D | 20.8 x 30.3 cm
Driver Complement :One 1" pure aluminum dome tweeter; Two 3-1/2" high definition midrange drivers; Two 3-1/2" high definition bass drivers; Two 3-1/2" pressure coupled bass radiators
Impedance :Compatible with 8 Ohms outputs
Sensitivity :89 dB
Recommended Associated Amplifier Power :10 – 200 watts
A/V Receiver Crossover Setting :120 Hz
Inputs :One pair of 5 way binding posts
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black
Base :Tempered Glass
Packaging :One to a carton
Weight | Metric :23 lbs. | 10.4 kg
Warranty :5 Years

Single Ported HiVe® II technology
Sealed Mid-range TLE®
2 x 6.5” long-throw RDT® bass drivers
1 x 4” RDT® mid-range driver
1 x C-CAM® high frequency ribbon transducer
All cabinet finishes have hand-upholstered front baffles in Ingleston Black premium grade leather.
Finish options: Santos Rosewood veneer with clear gloss piano lacquer
Ebony veneer with clear gloss piano lacquer
Piano black gloss
Optional dedicated floor stands are available

Frequency Response: 35 Hz - 100 KHz
Sensitivity (1W@1M): 90 dB
Nominal Impedance: 4 Ohms
Maximum S.P.L
(Per pair in room): 117.8 dBA
Power Handling (RMS): 250 W
Recommended Amplifier Requirements (RMS): 100 - 250 W
Bass Alignment: Rear Ported HiVe®II technology
Sealed Mid-range TLE®
Mid / H.F Crossover Frequency: 3600 Hz
Bass Low Pass Crossover Frequency: 600 Hz
Drive Unit Complement: 2 x 6.5" long-throw RDT® bass drivers
1 x 4" RDT® mid-range driver
1 x C-CAM® high frequency ribbon transducer
External Dimensions -
Including Fixed Plinth (H x W x D): 998 x 360 x 375 mm
(39 5/16 x 14 3/16 x 14 3/4 inches)
Weight (each) Including Plinth: 33Kg (72.7 lbs)

User's Manual

AVAILABLE IN THESE COLOR FINISHES