801 D4 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. 40 years of excellence Innovation. 801 D4 is defined by it. In each of its incarnations over the decades, 801 has always been the most advanced loudspeaker that B&w know to make at that particular point in time, a showcase of all B&w’s newest technologies and most original thinking. Small wonder it has become an icon. The ultimate Matrix™ Matrix bracing uses interlocking panels to reinforce loudspeaker cabinet walls in all directions internally, reducing resonance and creating a more believable soundstage. The Matrix assembly in 801 D4 is B&w’s best yet, upgraded with extensive aluminum bracing to reinforce key stress points. Turbine™ Head The all-aluminum Turbine Head houses B&w’s Continuum midrange cone in a stiff and critically damped enclosure to eliminate unwanted resonances. At the same time, it’s decoupled from both the bass enclosure and the tweeter body. The result? The most realistic midrange sound yet. Biomimetic Suspension Sometimes, making a big difference takes unconventional thinking. Bowers & Wilkins’ new Biomimetic Suspension revolutionizes midrange performance by greatly reducing the unwanted air pressure and coloration that a traditional fabric spider can generate. The result? Midrange transparency you wouldn’t believe. The science of sound Innovation is at the heart of everything B&w do. They question, they examine, they understand and then they evolve. They use computer modelling to explore and reimagine every aspect of loudspeaker design. SPECIFICATIONS Dimensions Height: 1221mm (48.1 in) Width: 451mm (17.8 in) Depth: 600mm (23.62 in) Net weight 100.60kg (221.8 lb) Technical features Diamond tweeter Solid body Tweeter-on-Top Continuum™ cone FST Anti-Resonance plug Biomimetic Suspension Turbine™ Head Matrix™ Aerofoil™ cone bass units Flowport Description 3-way vented-box system Drive units 1x ø25mm (1in) Diamond dome high-frequency 1x ø150mm (6in) Continuum cone FST midrange 2x ø250mm (10in) Aerofoil cone bass units Frequency range 13Hz to 35kHz Frequency response 15Hz to 28kHz (+/-3dB from reference axis) Sensitivity 90dB (on axis at 2.83Vrms at 1m) Harmonic distortion 2nd and 3rd harmonics (90dB,1m on axis) <1% 30Hz – 20kHz <0.3% 100Hz – 20kHz Nominal impedance 8Ω (minimum 3.0Ω) Recommended amplifier power 50W – 1000W into 8Ω on unclipped programme Max recommended cable impedance 0.1Ω Cabinet finishes Gloss Black White Satin Rosenut Satin Walnut Grille finishes Black Grey Black Grey