“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.

SPECIFICATIONS.

Model: Q650c Center Channel Speaker
Design: Two and a half-way bass reflex
Drive Units: Uni-Q driver array

• HF: 25mm (1in.) vented aluminium dome
• MF: 165mm (6.50in.) aluminium Uni-Q
• LF:165mm (6.5in.) aluminium
• ABR: 165mm (6.5in.)aluminium

Frequency Range Free Field (-6dB): 55Hz
Frequency Response (±3dB): 64Hz – 28kHz
Crossover Frequency: 2.5kHz
Amplifier Requirements: 15-150W
Sensitivity (2.83V/1m): 87dB
Maximum Output: 110dB
Nominal Impedance: 8? (min.4.2?)
Weight: 13.6kg (30 lbs)
Dimensions (H X W X D): 210mm (8.26 inches) x 629mm (24.76 inches) x 304mm (11.96 inches)
Dimensions (H X W X D) *with Rubber Feet: 214mm (8.42 inches) x 629mm (24.76 inches) x 304mm (11.96 inches)

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