Bowers & Wilkins 801 D4


Innovation. 801 D4 is defined by it. In each of its incarnations over the decades, 801 has always been the most advanced loudspeaker

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Bowers & Wilkins 801 D4

Bowers & Wilkins 801 D4 Black

800 Series Diamond™

Excellence. Evolved

An icon reborn

801 D4 Side

This is not just another speaker range.

Each new generation of 800 Series Diamond is a landmark event for Bowers & Wilkins.

This is their benchmark, their icon; the most advanced range of loudspeakers they know how to make.

For them, the 800 Series Diamond is everything they know, and everything they are.

Decades in the making

John Bowers wanted the original Model 801 to clearly be superior to anything he had done before: to be the best loudspeaker the world had ever heard.

Over the decades that have followed, they have constantly evolved his original design, but his passion for perfection continues to inspire them to this day.

A legacy like no other

Other speakers merely replay recorded music.

800 Series Diamond makes it.

The speaker of choice for recording industry professionals for decades, it has helped artists and studios the world over to create the music and film soundtracks that have shaped a generation.

The science of sound

Innovation is at the heart of everything they do.

They question, they examine, they understand and then they evolve.

They use computer modelling to explore and re-imagine every aspect of loudspeaker design.

Learn more about all the technologies that combine to make 800 Series Diamond so special

Form meets function

B&W 801 D4 Form

Their design always has a purpose.

Decades of cutting-edge research into loudspeaker design have given us a deep understanding of how to make them sound wonderful.

And if that same knowledge also inspires beautiful forms wrapped in a range of four luxurious finishes, who’s complaining?

Floor-standing speaker

Bowers & Wilkins 801 D4 Walnut

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 Bowers & Wilkins 801 D4 is an instant icon

40 years of excellence

Innovation. Bowers & Wilkins 801 D4 is defined by it.

In each of its incarnations over the decades, 801 has always been the most advanced loudspeaker that they know to make at that particular point in time, a showcase of all our newest technologies and most original thinking. Small wonder it has become an icon

The ultimate Matrix

801 D4 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 Bowers & Wilkins 801 D4 is their best yet, upgraded with extensive aluminium bracing to reinforce key stress points.

Turbine Head

Turbine Head

The all-aluminium Turbine Head houses their 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 mid-range sound yet.

Biomimetic Suspension

Biometric suspension

Sometimes, making a big difference takes unconventional thinking.

Their new Biomimetic Suspension revolutionises 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 state of their art

801 D4 is their flagship and the most powerful model in the new 800 Series Diamond range.

Its no-compromise design includes all their most advanced technologies in their purest, most optimised form alongside crossover components of the highest quality.

You want their reference loudspeaker? This is it…

Bowers & Wilkins 801 D4 specifications

801 D4 specifications


Technical features
Diamond tweeter
Solid body Tweeter-on-Top
Continuum cone FST
Anti-Resonance plug
Biomimetic Suspension
Turbine Head
Aerofoil cone bass units

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)

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

Height: 1221mm
Width: 451mm
Depth: 600mm

Net weight


Bowers & Wilkins 801 D4 Rosenut
Gloss Black
Satin Rosenut
Satin Walnut


Additional information


Gloss Black, Rosenut, Satin White, Walnut


Bowers & Wilkins

Bowers & Wilkins

1960s: Humble beginnings

The sleepy coastal town of Worthing in South England might not look like a hotbed of 1960s freewheeling experimentation, but for audio fans it’s a place that’s synonymous with innovation. Thanks to the first Bowers & Wilkins speakers built here in the early years of the company, music lovers could experience albums such as Sgt. Pepper and Pet Sounds in new, mind-expanding depth and clarity

1966: Beginings

John Bowers begins assembling speaker systems in the workshop of his electronics shop in Worthing, South East England Following an inheritance of £10,000 from a satisfied customer, John Bowers sets up his own loudspeaker company

1966: P1

The first Bowers & Wilkins loudspeaker. The profit from P1 allowed the company to invest in new calibration equipment

1968: Domestic Monitors

The DM1 and DM3 were launched to bring high quality audio to more customers, at an affordable price point

1970s: A decade of milestones

With the company established and growing fast, Bowers & Wilkins developed its reputation for innovative design backed up by world-leading R&D. They introduced new forms and design concepts including Tweeter-on-Top, new cone materials such as Aramid fibre, and it all culminated in the launch of the iconic 801, soon to become the reference speaker of choice for many of the world’s leading recording studios

1970: DM70

With its curved cabinet, the DM70 changed the shape of loudspeaker design

1980s: The application of science

Extensive investment in research led to the establishment of the company’s dedicated R&D facility in Steyning. The era of MTV pop superstardom and bombastic stadium rock also saw Bowers & Wilkins buck the trend and introduce something small and unobtrusive: the “compact monitor”, or CM1

1990s: Rewriting the rulebook

The 1990s saw the pioneering work of the Steyning research team realised in spectacular fashion with the launch of Nautilus™, a speaker that rewrote preconceived notions of speaker design. It also saw major product launches at both ends of the spectrum, with the unveiling of the highly regarded entry-level 600 Series and the flagship Nautilus 800 Series

2000s: Expansion in to new categories

The decade that brought us iPods and smartphones saw them embrace the new world with the launch of the iconic Zeppelin. They also expanded into the car audio category and transformed the performance of their 800 Series with the development of the Diamond-dome tweeter

2015: 800 Series Diamond

The latest version of their flagship introduced a complete redesign and revolutionary new technologies, such as the Continuum™ cone

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