Bowers & Wilkins

KEF

804 D4

Reference 1 Meta

Home Theatre Speaker Specification

Home Theatre Speaker Specification

Dynamic

Dynamic

25/460 mm

Uni-Q Driver Array
MF : 125 mm Aluminum Cone
HF : 25 mm Aluminum Dome With MAT
Bass Unit LF : 165 mm Aluminum Cone

8 ohm

4 Ohms ( Min. 3.2 Ohms )

89dB spl

85dB

20 Hz - 35 kHz, 24 Hz - 28 kHz

Crossover Frequency : 450 Hz, 2.1 kHz
Frequency Response ( ±3dB ) 45Hz – 35KHz
Typical In-Room Bass Response ( -6dB ) : 30Hz
Frequency Range Free Field ( -6dB ) : Short Port : 40Hz -45KHz, Long Port : 37Hz - 45KHz
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 - 200 W ( RMS )

50 - 200 W ( RMS )

Three-Way Bass Reflex

90 dB

111dB

NA

No

No

36.85 Kg

18.2 Kg

1071 mm X 391 mm X 306 mm

Speaker : 440 mm X 205 mm X 422 mm

Black, White, Grey, Brown

Black, White, Blue, Grey, Silver

Bowers & Wilkins 804 D4 Speaker

KEF Reference 1 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, Aerofoilâ„¢ Cone Bass Units, Flowport.
For listeners who crave the performance of an 800 Series Diamond tower speaker but prefer a more conventional aesthetic, the 804 D4 is the perfect choice. Its new cabinet and plinth make it our best-performing 804 yet.
804 D4 is perhaps more conventional in appearance than other floor-standers in the 800 Series Diamond range, but it’s every bit as sophisticated. Its new Reverse-Wrap cabinet is both a mechanical and acoustic revolution in its class, and its new plinth ensures rock-solid, accurate bass response too.

Available in 5 finishes.
Optimised cabinet design for best acoustic performance.
Enhanced crossover design fine-tuned the signal path for maximum clarity.
The Reference Series Grille set for each model is available as separate item.
With mounting inserts to secure on KEF S-RF1 Floor Stand ( available as separate item ).
Bespoke 12th generation Uni-Q with MAT driver array for exceptional acoustic accuracy.
Metamaterial Absorption Technology eliminates 99% of high-frequency distortion for pure, natural sound.
Five Models : Reference 1 Meta, Reference 3 Meta, Reference 5 Meta, Reference 2 Meta, Reference 4 Meta.