Bowers & Wilkins

KEF

801 D4

Blade One Meta

Home Theatre Speaker Specification

Home Theatre Speaker Specification

Dynamic

Dynamic

25/650 mm

Uni-Q Driver Array
MF : 125 mm Aluminum Cone
HF : 25 mm Aluminum Dome With MAT
Bass Unit LF : 4 X 225 mm Hybrid Aluminum Cone, Force Cancelling

8 ohm

4 Ohms ( Min. 2.8 Ohms )

90dB spl

88 dB

13 Hz - 35 kHz, 15 Hz - 28 kHz

Crossover Frequency : 350 Hz, 2 KHz
Frequency Range ( -6dB ) : 27 Hz - 45 KHz
Frequency Response ( ±3dB ) : 35 Hz - 35 KHz
Typical In-Room Bass Response ( -6dB ) : 20 Hz
Harmonic Distortion 2nd & 3rd Harmonics ( 90dB, 1m ) : <0.5% 40Hz - 100KHz, <0.2% 200Hz - 2KHz, <0.1% 2kHz - 20KHz

AC 100V-240 V / 50 Hz / 60 Hz

NA

50 W - 1000 W ( RMS )

50 - 400 W ( RMS )
Three-Way Bass Reflex
Single Apparent Source

90 dB

117 dB

NA

No

No

100.60 Kg

57.2 Kg

1221 mm X 600 mm X 451 mm

Speaker : 1590 mm X 363 mm X 540 mm

Black, White, Grey, Brown

Black, White, Blue, Red, Grey

Bowers & Wilkins 801 D4 Speaker

KEF Blade One Meta Home Theatre Speaker
User Manual
Warranty Information

3-Way Vented-Box System.
5-Year warranty Valid from the date of purchase for passive loudspeakers.
Technical features - Diamond Tweeter, Solid Body Tweeter-On-Top, Continuumâ„¢ Cone FST, Matrixâ„¢, Anti-Resonance Plug, Biomimetic Suspension, Turbineâ„¢ Head, Aerofoilâ„¢ Cone Bass Units, Flowport.
The loudspeaker that sets the standard other high-end designs will be judged by for years to come. Endowed with every new technology the 800 Series Diamond has to offer, the reference-quality 801 D4 is an instant icon.
801 D4 is our flagship and the most powerful model in the new 800 Series Diamond range. Its no-compromise design includes all our most advanced technologies in their purest, most optimized form alongside crossover components of the highest quality. You want our reference loudspeaker? This is it…

High Sensitivity : Boasting a sensitivity of 88dB , these speakers efficiently convert electrical signals into sound, ensuring a dynamic and impactful listening experience.
Low Harmonic Distortion : Harmonic distortion is kept to a minimum, with values below 0.5% across various frequency ranges, ensuring faithful reproduction of audio without unwanted artifacts.
Amplifier Compatibility : With amplifier requirements ranging from 50-400W, these speakers can be efficiently driven by a variety of amplifiers, allowing for flexibility in system configuration.
Crossover Precision : The crossover frequencies at 350Hz and 2kHz contribute to seamless transitions between different driver units, maintaining accuracy in reproducing audio across the frequency spectrum.
Single Apparent Source : With a single apparent source configuration, these speakers create a cohesive and immersive soundstage, ensuring that audio emanates seamlessly from a unified point, enhancing spatial realism.
Metamaterial Absorption Technology : The high-frequency unit boasts a 25 mm aluminum dome with MAT, a cutting-edge technology that minimizes distortion and enhances clarity in the reproduction of high-frequency sounds.
Three-Way Bass Reflex Design : The KEF Blade Two Meta Floorstanding Speakers feature a sophisticated three-way bass reflex design, optimizing the reproduction of low, mid, and high frequencies for a well-balanced audio experience.
Diverse Drive Units : The speakers incorporate a variety of drive units, including a 125 mm aluminum cone mid-frequency unit and four 225 mm force-canceling aluminum cone bass units, providing a comprehensive frequency range from 35Hz - 35kHz.
Impressive SPL Levels : The speakers can achieve a maximum output of 117dB, indicating their capability to deliver high sound pressure levels, making them suitable for large rooms or home theater setups. The impedance rating of 4 ohms ( minimum 2.8 ohms ) ensures compatibility with a variety of audio systems.