3-Way, 6 Speakers, Floor standing speakers -400W, 90 dB, 8 Ohm, 40Hz-35kHz

KEF REFERENCE 5 reveals subtleties you?d never noticed while gripping your emotions with the full power of the performance.

With four bass drivers and the latest Uni-Q mid and tweeter, the KEF REFERENCE 5 exemplifies KEF?s passion for innovation. Whether it?s music or film it reveals the irresistible emotional power of the performance every time.

KEF REFERENCE 5 exemplifies the passion for innovation that underpins THE REFERENCE design philosophy. For music or film, it reveals subtleties you?d never noticed while gripping your emotions with the full power of the performance.

Uni-Q Driver Array
At the heart of The Reference is a stunning new iteration of KEF?s landmark innovation: the Uni-Q point source MF/HF driver array. With a state-of-the-art 25mm (1in.) vented aluminium dome tweeter at the exact acoustic center of a highly sophisticated 125mm (5in.) mid range driver, both act as a single source that floods the listening space evenly with a flawless natural sound field, no matter where you sit. Capturing all the nuances of the human voice, whether whispered, spoken or sung, it sounds as if the person were right there with you in the room. All the jaw-dropping performance and innovative engineering pioneered for the critically acclaimed LS50 studio monitor, and then some. Reference 5 pairs KEF?s latest 125mm (5 inch) MF/HF Uni-Q driver array with four sensational new 165mm (6.5 inch) alloy cone bass driver to create a compellingly realistic and completely immersive sound stage. The Reference 5?s Uni-Q cast an inherently wide, even dispersion that also also makes it a tremendous rear channel speaker in a home theater system that effortlessly reveals all the subtleties encoded in modern soundtracks.

Bass Driver
Clean, rich and articulate bass grounds your enjoyment of stereo or multi-channel sound, and like everything else about The KEF Reference 5 , KEF?s new 165mm (6.5 inch) LF driver is in a class apart. With a massive vented magnet assembly and a large aluminium wire voice coil driving an exceptionally light, stiff and strong alloy cone, the dynamics and power handling are superb. Played loud or soft, in delicate passages or for full-on bass effects, the combination of advanced materials and clever engineering delivers deeply rewarding lows that blend seamlessly with Uni-Q?s immaculate mid range and treble response. The Reference 5 features four of these immensely powerful bass drivers.

Cabinet Design
The Reference drivers are set in a smooth, strikingly distinctive front baffle engineered to eliminate response anomalies caused by diffraction. Made from an exceptionally strong laminated aluminium/resin composite and secured via high-loss pads and high tensile bolts, it adds tremendous rigidity to the inert cabinet. Finished by hand in pair-matched wood veneers to complement the composite front baffle, the shape and bracing geometry of the cabinets are computer-optimized to minimize secondary radiation from the cabinet walls and distortion from standing waves. With constrained layer damping to absorb residual vibrations, they?re engineered to eliminate any panel resonance, stray reflections or box coloration effects that would compromise the purity of the sound.

Flexible Port Technology
The flexible port technology pioneered for the multi-award winning LS50 is used to reduce mid range port resonance, with the flare and profile of each port calculated by computational fluid dynamics to avoid turbulent air noise that might color the sound.

The Reference has innovative adjustable ports for fine-tuning the bass output to your personal taste and the room characteristics providing the ultimate flexibility for any room.

Crossover Design
KEF engineers computer-modeled the ideal crossover networks before exhaustively auditioning every high grade component, individually and together, to select those with the lowest distortion and the smoothest response. Perfectionism takes time, but the difference is plain to hear. Nothing is overlooked ? Reference crossovers are even mounted on separate boards and decoupled from the cabinet walls to minimize vibration and crosstalk.

Design:?Three-way Bass Reflex
Drive Units:?Uni-Q driver array
HF: 25mm (1in.) vented aluminium dome
MF: 125mm (5in.) aluminium
Bass units:
LF: 4 x165mm (6.5in.) aluminium
Frequency range free field (-6dB)

  • Short port: 35Hz ? 45kHz
  • Long port: 32Hz ? 45kHz

Frequency range typical in room bass response (-6dB): 25Hz
Frequency response (?3dB): 40Hz ? 35kHz
Crossover frequency:?350Hz, 2.8kHz
Amplifier requirements:?50-400W
Sensitivity?(2.83V/ 1m):?90dB
Harmonic distortion 2nd & 3rd harmonics (90dB, 1m)

  • <0.5% 40Hz ? 100kHz
  • <0.2% 200Hz ? 10kHz

Maximum output?(peak sound pressure level at 1m with pink noise):?116 dB
Impedance:?8? (min. 3.2?)
Weight:?60.2kg (132.7 lbs.)
Dimensions?(H x W x D)(with grille and terminal)

  • 1350 x 205 x 470 mm
  • (53.1 x 8.0 x 18.5 in.)

Dimensions?(H x W x D)(with grille, terminal & plinth)

  • 1397 x 349 x 470 mm
  • (55 x 13.7 x 18.5 in.)






Product Type

Floorstanding Speaker

KEF is a proud pioneer of excellence in sound. Since 1961, from their UK home, KEF has created remarkable award-winning speakers. From their ground-breaking Uni-Q technology to their bar-setting LS60 Wireless, KEF exists to fill rooms with music as it was made to be heard, to move souls with truly authentic soundscapes. Now, they're bringing more people with them on their journey to discover the power of great sound.